Memjet Technology Ltd.

Ireland

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IPC Class
B41J 2/175 - Ink supply systems 181
B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles 142
B41J 2/14 - Structure thereof 126
B41J 2/155 - Arrangement thereof for line printing 124
B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism 65
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Status
Pending 26
Registered / In Force 629
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1.

FULL COLOR INKJET PRINTHEAD FOR REDUNDANT PRINTING

      
Application Number 18405344
Status Pending
Filing Date 2024-01-05
First Publication Date 2024-05-02
Owner MEMJET TECHNOLOGY LIMITED (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead for printing redundantly in four colors. The printhead includes: an ink manifold having first, second, third and fourth ink reservoirs for supplying first, second, third and fourth inks, respectively; and first and second parallel printhead chips mounted on the ink manifold. The ink manifold has ink feed slots configured for supplying the first and second inks to the first printhead chip and for supplying the third and fourth inks to the second printhead chip.

IPC Classes  ?

  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/14 - Structure thereof
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 25/34 - Bodily-changeable print heads or carriages

2.

COMPACT INKJET NOZZLE DEVICE WITH HIGH DEGREE OF SYMMETRY

      
Application Number 18449556
Status Pending
Filing Date 2023-08-14
First Publication Date 2024-02-22
Owner Memjet Technology Limited (Ireland)
Inventor
  • North, Angus John
  • Mallinson, Samuel George
  • Lowe, Graeme

Abstract

An inkjet nozzle device includes a main chamber having a floor, a roof and a perimeter wall extending between the floor and the roof. The main chamber includes: a firing chamber having a nozzle aperture defined in the roof and a bar heater for ejection of ink through the nozzle aperture; an antechamber for supplying ink to the firing chamber, the antechamber having a chamber inlet defined in the floor; and a baffle plate extending parallel with the bar heater, which partitions the main chamber to define the firing chamber and the antechamber. The nozzle device has mirror symmetry about a symmetry plane extending perpendicular to the longitudinal axes of the bar heater and the baffle plate

IPC Classes  ?

3.

INK DELIVERY SYSTEM WITH FILTER PROTECTION

      
Application Number 18308971
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Yourlo, Zhenya
  • Crichton, Peter
  • Wang, Mei
  • Chin, Nicolas
  • Meyer, Craig

Abstract

An ink delivery system for delivering ink to an inkjet printhead includes: an ink tank; the inkjet printhead having a printhead inlet port and a printhead outlet port; an ink supply line connected between the ink tank and the printhead inlet port; an ink return line connected between the ink tank and the printhead outlet port; an ink recirculation pump positioned in the ink return line; an ink filter positioned in the ink return line; a bypass line for bypassing ink around the ink filter; a bypass valves for controlling flow of ink either through the ink filter or through the bypass line; and a controller for coordinating the bypass valve and the pump. The controller is configured to pump ink from the printhead outlet port to the ink tank via the bypass line when the return line contains air.

IPC Classes  ?

  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/18 - Ink recirculation systems
  • B41J 2/175 - Ink supply systems

4.

PRINTHEAD NEST ASSEMBLY

      
Application Number 18309036
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Burke, David Oliver
  • Profaca, Mark

Abstract

A printhead nest assembly for facilitating printhead replacement. The printhead nest assembly includes: a nest configured for detachable fastening to a printhead carrier and a replaceable printhead nestably secured within the nest, the nest enveloping all sides of the printhead. The nest is configurable in open and closed positions and allows removal of the printhead only in the open position and only when the printhead nest assembly is detached from the printhead carrier.

IPC Classes  ?

  • B41J 25/34 - Bodily-changeable print heads or carriages

5.

INKJET MODULE WITH PIVOTING CAP COVER

      
Application Number 18309299
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor Burke, David Oliver

Abstract

An integrated inkjet module includes: a chassis having an elongate base plate and a rear wall extending upwards therefrom; an elongate printhead liftably mounted on the chassis; a lift mechanism operatively connected to the printhead for lifting and lowering the printhead relative to the base plate; a capping assembly slidably mounted on the base plate, the capping assembly having a capper extending parallel with the rear wall and the printhead; a capper movement mechanism operatively connected to the capping assembly for linearly slidably moving the capping assembly towards and away from the rear wall; and a cap cover pivotally mounted to the rear wall. During use, engagement of part of the capping assembly with the cap cover pivots the cap cover away from the capper to allow sliding movement of the capper towards the rear wall and into a covered position.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 25/00 - Actions or mechanisms not otherwise provided for

6.

PRINTING UNIT WITH PIVOTING OPPOSED INKJET MODULES

      
Application Number 18309349
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Brice, Robert John
  • Burke, David Oliver
  • Profaca, Mark

Abstract

A printing unit includes: a unit chassis and a pair of opposed inkjet modules mounted on the unit chassis, each inkjet module having a respective printhead. The inkjet modules are each pivotally mounted on the unit chassis for pivotally moving the inkjet modules towards and away from each other.

IPC Classes  ?

  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface

7.

INKJET MODULE WITH PRINTHEAD NEST ASSEMBLY

      
Application Number 18309004
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Burke, David Oliver
  • Profaca, Mark

Abstract

An integrated inkjet module includes: a chassis; a printhead carrier mounted to the chassis; and a printhead nest assembly having a nest fastened to the printhead carrier and a replaceable printhead nestably secured within the nest. The printhead nest assembly is detachable from the printhead carrier and the printhead is removable from the nest only when the printhead nest assembly is detached from the printhead carrier.

IPC Classes  ?

8.

METHOD OF REPLACING PRINTHEAD

      
Application Number 18309053
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor Burke, David Oliver

Abstract

A method of replacing a printhead in an inkjet module includes the steps of: detaching a printhead nest assembly from a printhead carrier of the inkjet module, the printhead nest assembly having a nest and a printhead nestably secured within the nest; opening the nest and removing the printhead; inserting a replacement printhead into the opened nest and then closing the nest to reform the printhead nest assembly; and fastening the printhead nest assembly to the printhead carrier.

IPC Classes  ?

  • B41J 25/34 - Bodily-changeable print heads or carriages

9.

NKJET MODULE WITH RIGID PRINTHEAD SUPPORT

      
Application Number 18309093
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Burke, David Oliver
  • Profaca, Mark

Abstract

An integrated inkjet module includes: a chassis having an elongate base plate defining a longitudinal slot; a pair of posts extending upwards from the base plate at opposite ends of the longitudinal slot; a pair of brackets having sleeve bushings slidably engaged with the posts; an elongate printhead carrier supported between the brackets, the printhead carrier having: front and rear plates defining a cavity therebetween, a brace interconnecting upper parts of the front and rear plates, and a pair of datum blocks interconnecting lower parts of the front and rear plates; a printhead mounted to the datum blocks; and a lift mechanism operatively connected to each bracket for lifting and lowering the printhead carrier relative to the base plate.

IPC Classes  ?

  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

10.

INKJET MODULE WITH SHIELDED WIPER

      
Application Number 18309316
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Burke, David Oliver
  • Profaca, Mark

Abstract

An integrated inkjet module includes: a chassis having an elongate base plate; a pair of posts extending upwards from the base plate at opposite ends of a longitudinal slot; a pair of brackets slidably engaged with the posts; a printhead liftably mounted to the chassis via the brackets; a lift mechanism operatively connected to each bracket for lifting and lowering the printhead relative to the base plate; and a wiper parked at one end of the longitudinal slot for longitudinally wiping the printhead. The printhead is movable between a print position and a raised position, the chassis has an open front face allowing access to the printhead via the front face, and one of the brackets is configured for shielding the wiper in the print position.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

11.

PRINTING UNIT WITH TANDEM INKJET MODULES

      
Application Number 18309328
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Burke, David Oliver
  • Profaca, Mark
  • Brice, Robert
  • Crichton, Peter

Abstract

A printing unit includes: a unit chassis and a pair of opposed inkjet modules mounted in tandem on the unit chassis in forward and reverse orientations, each inkjet module having one respective printhead and at least one of: a capper and a wiper. Each printhead includes first and second rows of print chips mounted on a unitary surface of a respective ink manifold, the first and second rows of print chips having a plurality of print chips butted end-on-end along a length of the printhead. The printheads are wholly aligned with respect to a media feed direction for printing in four ink colors from the pair of printheads.

IPC Classes  ?

12.

TANDEM INKJET MODULES CONFIGURED FOR EFFICIENT AEROSOL EXTRACTION

      
Application Number 18309430
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Burke, David Oliver
  • Tharion, Joseph
  • Brice, Robert John

Abstract

A printing unit includes: a unit chassis for positioning over a media feed path; a pair of opposed inkjet modules mounted in tandem on the unit chassis in forward and reverse orientations, each inkjet module including a module chassis having a C-shaped base plate defining an open longitudinal slot and a printhead positioned in the open longitudinal slot of a respective base plate; and an aerosol extractor positioned beneath the base plate of a downstream inkjet module relative to a media feed direction. The pair of opposed C-shaped base plates have relatively proximal open longitudinal slots containing the pair of printheads and relatively distal longitudinal base members.

IPC Classes  ?

  • B41J 2/17 - Ink jet characterised by ink handling
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/15 - Arrangement thereof for serial printing

13.

TANDEM INKJET MODULES WITH PRINTHEAD SKEW ADJUSTMENT

      
Application Number 18309478
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Brice, Robert John
  • Burke, David Oliver

Abstract

A printing unit including: a unit chassis; and first and second inkjet modules mounted on the unit chassis, each inkjet module having a respective printhead nest assembly, each printhead nest assembly including a replaceable printhead nestably secured within a respective nest with each nest enveloping its respective printhead about all sides. The nest includes: a cantilever spring engaged with its respective printhead, the cantilever spring being biased away from the printhead; and a screw adjuster in butting engagement with the cantilever spring for urging the cantilever spring towards and away from the printhead. In use, a skew of one printhead is mechanically adjustable relative to the other printhead via rotational movement of the screw adjuster.

IPC Classes  ?

  • B41J 25/316 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with tilting motion mechanisms relative to paper surface
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 25/312 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print pressure adjustment mechanisms, e.g. pressure-on-the-paper mechanisms

14.

METHOD OF PRINTING REDUNDANTLY AND HIDING PRINT ARTEFACTS

      
Application Number 18309505
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Crichton, Peter
  • Burke, David Oliver

Abstract

A method of printing redundantly in four colors from first and second printheads aligned along a media feed direction. Each of the first and second printheads has respective first and second rows of print chips butted end-on-end, the first and second rows of print chips having 180-degree rotational symmetry. Each row of print chips in one printhead is supplied with the same two inks which are printed from both rows of print chips in that printhead. Compensatory sets of nozzles in the first and second rows of print chips are offset along the media feed direction, by virtue of the 180-degree rotational symmetry, so as to hide print artefacts arising from the compensatory sets of nozzles.

IPC Classes  ?

15.

PRINTING UNIT WITH SEALED PRINT ZONE

      
Application Number 18309545
Status Pending
Filing Date 2023-04-28
First Publication Date 2023-12-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Horrocks, Glenn
  • Crichton, Peter
  • Burke, David Oliver
  • Tharion, Joseph

Abstract

A printing unit includes: a height-adjustable print module including a printhead for printing onto a media surface; and a resilient flap positioned for engagement with part of the print module. In use, movement of the print module towards the media surface into a printing position forms a seal between the print module and the flap for printing.

IPC Classes  ?

  • B41J 25/308 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

16.

PRINTHEAD MODULE HAVING ALTERNATE PCBS AND ROWS OF PRINT CHIPS

      
Application Number 18339907
Status Pending
Filing Date 2023-06-22
First Publication Date 2023-10-19
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason Mark
  • Burke, David Oliver

Abstract

A printhead module includes a monolithic substrate having longitudinal ink supply channels defined through a thickness of the substrate and extending parallel with each other along a length of the substrate; rows of print chips mounted on a front face of the substrate, each row of print chips receiving ink only from a respective one of the ink supply channels; and first PCBs mounted on the front face, each PCB extending alongside a respective one of the rows of print chips and supply power thereto. The rows of print chips and the first PCBs are mounted alternately across the front face of the substrate.

IPC Classes  ?

17.

METHOD OF MONOCHROME PRINTING AT HIGH SPEEDS

      
Application Number 18339931
Status Pending
Filing Date 2023-06-22
First Publication Date 2023-10-19
Owner Memjet Technology Limited (Ireland)
Inventor
  • Brown, Brian
  • Hogan, Julie
  • Palliser, Ronan
  • Nazneen, Keshu
  • Le Hir, Juliette
  • Hardy, Rodney

Abstract

A method of printing an image from a print chip having plurality of horizontal nozzle rows. The method includes the steps of allocating first dot data for an image line of the image to nozzles in a first row portion of a first nozzle row; allocating second dot data for the image line to nozzles in a second row portion; sending the first and second dot data to the print chip and firing respective droplets. Some bits of the first dot data correspond to pixels of the image line aligned with the second row portion, and some bits of the second dot data correspond to pixels of the image line aligned with the first row portion.

IPC Classes  ?

  • B41J 2/145 - Arrangement thereof
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

18.

ORIENTATION-AGNOSTIC PRINT MODULE AND MULTIPLE PRINT MODULE ARRAY

      
Application Number 18062675
Status Pending
Filing Date 2022-12-07
First Publication Date 2023-06-08
Owner Memjet Technology Limited (Ireland)
Inventor
  • Crichton, Peter
  • Grohn, Edmund James
  • Hogan, Julie
  • Palliser, Ronan

Abstract

An inkjet print module includes: a printhead having first and second rows of print chips, the printhead having 180 degree rotational symmetry about a print axis parallel to a direction of droplet ejection; a cradle for removably receiving the printhead; and control circuitry for distributing data signals to the printhead via first and second data paths of the inkjet print module. The cradle is configurable for receiving the printhead in first and second printhead orientations relative to the print module, the second printhead orientation being rotated 180 degrees about the print axis relative to the first printhead orientation. The control circuitry is configurable to invert distribution of the data signals between the first and second data paths.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

19.

SELECTIVELY CONFIGURABLE PRINT MODULE

      
Application Number 18062680
Status Pending
Filing Date 2022-12-07
First Publication Date 2023-06-08
Owner Memjet Technology Limited (Ireland)
Inventor
  • Crichton, Peter
  • Grohn, Edmund James
  • Hogan, Julie
  • Palliser, Ronan

Abstract

An inkjet print module includes: a printhead having first and second rows of print chips, the printhead having 180 degree rotational symmetry about a print axis parallel to a direction of droplet ejection; a fixed printhead keying feature which is rotationally asymmetric about the print axis notwithstanding the rotational symmetry of the printhead; a cradle for removably receiving the printhead, the cradle having a key assembly for complementary engagement with the fixed printhead keying feature. The key assembly is selectively configurable in either one of first and second cradle configurations so as to receive the printhead either in a first printhead orientation or a second printhead orientation, the second printhead orientation being rotated 180 degrees about the print axis relative to the first printhead orientation.

IPC Classes  ?

  • B41J 25/34 - Bodily-changeable print heads or carriages

20.

METHOD OF CONFIGURING ORIENTATION-AGNOSTIC PRINT MODULE

      
Application Number 18062690
Status Pending
Filing Date 2022-12-07
First Publication Date 2023-06-08
Owner Memjet Technology Limited (Ireland)
Inventor
  • Crichton, Peter
  • Grohn, Edmund James
  • Hogan, Julie
  • Palliser, Roman

Abstract

A method of configuring an orientation-agnostic inkjet print module for use in either one of first or second module orientations relative to a media path, the second module orientation being rotated 180 degrees relative to the first module orientation. The method includes the steps of: configuring a key assembly to correspond with either one of the first or second module orientations, the key assembly determining a printhead orientation of a respective printhead relative to the inkjet print module; and configuring a switch to correspond with either one of the first or second module orientations, the switch being operably connected to controller circuitry distributing data signals to the printhead via first and second data paths. The switch inverts distribution of the data signals between the first and second data paths.

IPC Classes  ?

  • B41J 25/00 - Actions or mechanisms not otherwise provided for

21.

Dither mask selection for printing using aligned printheads

      
Application Number 18058525
Grant Number 11831841
Status In Force
Filing Date 2022-11-23
First Publication Date 2023-03-16
Grant Date 2023-11-28
Owner Memjet Technology Limited (Ireland)
Inventor
  • Hardy, Rodney
  • Lawrence, James

Abstract

A method of printing an image using a printing system having first and second printheads supplied with a same ink. The method includes the steps of: allocating first lines of the image to the first printhead; allocating second lines of the image to the second printhead; dithering the first lines of the image using a selected first dither mask; dithering the second lines of the image using a selected second dither mask; printing the dithered first lines of the image using the first printhead; and printing the dithered second lines of the image using the second printhead. The first and second dither masks are selected based on a relative alignment of the first and second printheads.

IPC Classes  ?

  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers
  • G06K 15/10 - Arrangements for producing a permanent visual presentation of the output data using printers by matrix printers
  • H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
  • B41J 2/21 - Ink jet for multi-colour printing
  • H04N 1/52 - Circuits or arrangements for halftone screening
  • B41M 5/50 - Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording

22.

THERMAL INKJET NOZZLE DEVICE

      
Application Number 17822372
Status Pending
Filing Date 2022-08-25
First Publication Date 2023-03-02
Owner Memjet Technology Limited (Ireland)
Inventor Horrocks, Glenn

Abstract

An inkjet nozzle device includes: a bubble chamber having a heating element for generating a vapour bubble and an orifice positioned for communicating an impulse from the vapour bubble; a first inlet for supplying a first fluid to the bubble chamber; an ejection chamber having a roof defining a nozzle and an adjoining wall between the ejection chamber and the bubble chamber, the adjoining wall defining the orifice; and a second inlet for supplying a second fluid to the ejection chamber. In use, the first and second fluids form a fluidic interface at the orifice and the vapour bubble provides the impulse to the second fluid in the ejection chamber via the orifice, such that the impulse ejects the second fluid from the nozzle.

IPC Classes  ?

23.

Method of printing onto variable-sized box substrates

      
Application Number 17822368
Grant Number 11809929
Status In Force
Filing Date 2022-08-25
First Publication Date 2023-03-02
Grant Date 2023-11-07
Owner Memjet Technology Limited (Ireland)
Inventor Wozniak, Terry

Abstract

A method of printing onto a planar box substrate used for assembling a box having predetermined box dimensions. The method includes the steps of: determining box dimensions based on the planar box substrate; retrieving generic instructions for image content to be printed on the box substrate; preparing box-specific transformations using the generic instructions and the box dimensions; applying the box-specific transformations on design components to generate image content portions commensurate with image content regions; generating image data based on the image content portions; and printing onto the box substrate using the image data.

IPC Classes  ?

  • G06K 15/00 - Arrangements for producing a permanent visual presentation of the output data
  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers
  • G06T 3/40 - Scaling of a whole image or part thereof
  • G06T 11/00 - 2D [Two Dimensional] image generation
  • G06K 15/10 - Arrangements for producing a permanent visual presentation of the output data using printers by matrix printers

24.

THREAD-COATING MODULE WITH INK MANAGEMENT SYSTEM

      
Application Number 17815686
Status Pending
Filing Date 2022-07-28
First Publication Date 2023-02-02
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

A thread-coating module includes: a coating chamber having a thread entrance at one end and a thread exit at an opposite end thereof; and an inkjet printhead positioned in a printhead opening of the coating chamber for ejecting ink onto thread fed through the coating chamber. The coating chamber has an ink management system positioned opposite the printhead for managing excess ink. The ink management system includes: an inner ink-collection slot in fluid communication with a drain port for recycling excess ink and an outer aerosol-collection chamber fluidically connected to a vacuum port.

IPC Classes  ?

  • B41J 2/185 - Ink-collectors; Ink-catchers
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • D06B 11/00 - Treatment of selected parts of textile materials, e.g. partial dyeing
  • D06P 5/30 - Ink jet printing

25.

Thread-coating module

      
Application Number 17815655
Grant Number 11872823
Status In Force
Filing Date 2022-07-28
First Publication Date 2023-02-02
Grant Date 2024-01-16
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

A thread-coating module includes: a base plate having a printhead opening; an inkjet printhead received in the printhead opening; and a chamber unit having a mouth for engagement with the base plate and an ink-collection slot opposing the printhead. The chamber unit and the base plate are movable relative to each other for opening and closing a coating chamber comprising the base plate and the chamber unit, with the ink-collection slot being positioned opposite the printhead in the coating chamber.

IPC Classes  ?

  • B41J 2/185 - Ink-collectors; Ink-catchers
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • D06B 11/00 - Treatment of selected parts of textile materials, e.g. partial dyeing
  • D06P 5/30 - Ink jet printing
  • B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
  • B05C 11/10 - Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
  • B05C 15/00 - Enclosures for apparatus; Booths
  • B41J 3/60 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
  • D06B 23/30 - Means for cleaning apparatus or machines, or parts thereof
  • B05C 13/02 - Means for manipulating or holding work, e.g. for separate articles for particular articles
  • B41J 2/15 - Arrangement thereof for serial printing
  • D06B 23/02 - Rollers

26.

INKJET PRINTHEAD FOR REDUNDANT PRINTING

      
Application Number 17935674
Status Pending
Filing Date 2022-09-27
First Publication Date 2023-01-19
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

A pagewide printhead for redundant printing has first and second rows of printhead chips mounted on a common ink manifold. The ink manifold has four ink supply channels for supplying ink to the first and second rows of printhead chips. Dedicated ink outlets interconnect one ink supply channel of the ink manifold with two color channels in each printhead chip.

IPC Classes  ?

  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/14 - Structure thereof
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

27.

Thermal regulation in long inkjet printhead

      
Application Number 17847048
Grant Number 11951736
Status In Force
Filing Date 2022-06-22
First Publication Date 2022-12-29
Grant Date 2024-04-09
Owner Memjet Technology Limited (Ireland)
Inventor
  • Hudson, Michael
  • Burke, David
  • Chen, Qing
  • Lowe, Graeme
  • Thelander, Jason Mark
  • Munton, Ellaine

Abstract

An inkjet printing system includes: (a) an inkjet printhead having a rigid elongate manifold with first and second parallel ink supply channels extending along a length of the manifold between respective ink ports positioned at opposite ends thereof; and a plurality of printhead chips mounted to a lower surface of the manifold, the ink supply channels supplying ink to the printhead chips via ink outlets defined in the lower surface. One end of the manifold has a first ink inlet port for the first ink supply channel and an ink outlet port for the second ink supply channel. The other end of the manifold has a first ink outlet port for the first ink supply channel and a second ink inlet port for the second ink supply channel. An ink delivery system is configured to flow ink along the first and second channels in opposite directions.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/145 - Arrangement thereof
  • B41J 2/175 - Ink supply systems

28.

Printing unit with three printheads

      
Application Number 17821733
Grant Number 11884084
Status In Force
Filing Date 2022-08-23
First Publication Date 2022-12-22
Grant Date 2024-01-30
Owner Memjet Technology Limited (Ireland)
Inventor
  • Profaca, Mark
  • Burke, David Oliver
  • Sy, Billy
  • Alemana, Gilbert
  • Hibbard, Christopher
  • Balala, Rommel

Abstract

A printing unit includes: three elongate printheads positioned in a staggered overlapping arrangement for spanning across a media feed path, wherein a first printhead and a second printhead are longitudinally spaced apart and positioned in a row across the media feed path and a third printhead is offset from and overlaps with both the first and second printheads; three wipers for longitudinally wiping respective printheads in a direction perpendicular to a media feed direction, each wiper being parked at one longitudinal end of its respective printhead. One of the wipers, in its parked position, is positioned in a space between the first and second printheads.

IPC Classes  ?

  • B41J 2/16 - Production of nozzles
  • B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
  • B41J 2/175 - Ink supply systems
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/02 - Framework
  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 25/00 - Actions or mechanisms not otherwise provided for

29.

SYSTEM FOR REMOVING CONDENSATE FROM PRINTHEAD

      
Application Number 17749914
Status Pending
Filing Date 2022-05-20
First Publication Date 2022-11-24
Owner Memjet Technology Limited (Ireland)
Inventor Burke, David

Abstract

A printing device includes: an inkjet printhead having a row of ink ejection devices; a lift mechanism configured for raising and lowering the printhead between a maintenance position and a printing position; a conveyor tape positioned below the printhead in the printing position, the conveyor tape defining a slot aligned with the row of ink ejection devices; and a tape movement mechanism for moving the tape longitudinally along the length of the printhead. The tape movement mechanism is configured to move the tape along the printhead during printing, thereby conveying condensate accumulated on an underside of the tape away from the printhead.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

30.

Spit flap for inkjet printhead

      
Application Number 17745626
Grant Number 11840098
Status In Force
Filing Date 2022-05-16
First Publication Date 2022-11-17
Grant Date 2023-12-12
Owner Memjet Technology Limited (Ireland)
Inventor
  • Burke, David
  • Thelander, Jason Mark
  • Baterna, Dan
  • Balala, Rommel
  • Crichton, Peter

Abstract

A printing device includes: an inkjet printhead; a lift mechanism for raising and lowering the printhead through a lift path; and a pivotally movable spit flap positioned in the lift path. The spit flap is configured to swing away from the lift path when the printhead contacts the spit flap during lowering of the printhead.

IPC Classes  ?

  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

31.

Printhead module for pagewide printhead having narrow print zone

      
Application Number 17862013
Grant Number 11760094
Status In Force
Filing Date 2022-07-11
First Publication Date 2022-10-27
Grant Date 2023-09-19
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason Mark
  • Burke, David Oliver

Abstract

A printhead module for a modular pagewide inkjet printhead. The printhead module has only four rows of print chips configured for printing four different inks, each print chip having multiple nozzle rows for redundant monochrome printing of one respective ink. A print zone of the printhead module has a width of less than 100 mm across the four rows of print chips.

IPC Classes  ?

32.

Pressure-regulating valve with dual valve members

      
Application Number 17713475
Grant Number 11782463
Status In Force
Filing Date 2022-04-05
First Publication Date 2022-10-20
Grant Date 2023-10-10
Owner Memjet Technology Limited (Ireland)
Inventor
  • Yourlo, Zhenya
  • Behi, Mohammadreza
  • Crichton, Peter
  • Berry, Norman Micheal

Abstract

A pressure regulating valve for an inkjet printhead. The valve includes: a valve inlet connect to a valve outlet; via a flow path; a first orifice positioned in the flow path having a sealable first seat; a movable first valve member configured for sealing engagement with the first seat; a second orifice positioned in the flow path; a movable second valve member configured for regulating a fluid flow rate through the second orifice; a regulator chamber having the valve outlet and comprising a diaphragm operatively connected to the second valve member, such that movement of the diaphragm moves the second valve member relative to the second orifice; and a biasing mechanism for resiliently biasing the diaphragm away from the second orifice.

IPC Classes  ?

  • G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
  • B41J 2/175 - Ink supply systems

33.

Ink delivery system with gravity, valve and pump control of backpressure

      
Application Number 17713504
Grant Number 11789473
Status In Force
Filing Date 2022-04-05
First Publication Date 2022-10-20
Grant Date 2023-10-17
Owner Memjet Technology Limited (Ireland)
Inventor
  • Yourlo, Zhenya
  • Behi, Mohammadreza
  • Crichton, Peter
  • Berry, Norman Micheal

Abstract

2 of the valve orifice relative to the printhead, a position of a valve member relative to the orifice and a pump speed of the pump.

IPC Classes  ?

  • G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
  • B41J 2/175 - Ink supply systems

34.

Pressure-regulating valve with non-linear flow regulator

      
Application Number 17713516
Grant Number 11940820
Status In Force
Filing Date 2022-04-05
First Publication Date 2022-10-20
Grant Date 2024-03-26
Owner Memjet Technology Limited (Ireland)
Inventor
  • Yourlo, Zhenya
  • Behi, Mohammadreza
  • Crichton, Peter
  • Berry, Norman Micheal

Abstract

A pressure regulating valve for an inkjet printhead. The valve includes: a fluid flow path defined between a valve inlet and a valve outlet; an orifice positioned in the flow path; a movable valve member configured for regulating a fluid flow rate through the orifice; a regulator chamber having the valve outlet and including a diaphragm operatively connected to the valve member, such that movement of the diaphragm moves the valve member relative to the orifice; and a biasing mechanism for resiliently biasing the diaphragm away from the orifice. An outer surface of the valve member is non-linearly flared away from the diaphragm.

IPC Classes  ?

  • G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
  • B41J 2/175 - Ink supply systems

35.

Additive manufacturing using thermal inkjet printheads

      
Application Number 17713568
Grant Number 11919074
Status In Force
Filing Date 2022-04-05
First Publication Date 2022-10-20
Grant Date 2024-03-05
Owner Memjet Technology Limited (Ireland)
Inventor Fielder, Simon

Abstract

An additive manufacturing method using an inkjet printhead supplied with a binder fluid, said method comprising the steps of: (a) providing a layer of powdered build material including a monomer; (b) selectively jetting the binder fluid onto predetermined regions of the layer of powdered build material, the binder fluid comprising a catalyst; (c) optionally exposing the layer of powdered build material to an energy source to initiate polymerization of the monomer; and (d) optionally repeating steps (a) to (c).

IPC Classes  ?

  • B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
  • B22F 1/145 - Chemical treatment, e.g. passivation or decarburisation
  • B22F 12/40 - Radiation means
  • B22F 12/50 - Means for feeding of material, e.g. heads
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 70/00 - Materials specially adapted for additive manufacturing

36.

Integrated inkjet module with liftable print modules and aerosol collector

      
Application Number 17852231
Grant Number 11712905
Status In Force
Filing Date 2022-06-28
First Publication Date 2022-10-13
Grant Date 2023-08-01
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

An integrated inkjet module includes: a support chassis configured for fixedly mounting over a media feed path; a maintenance chassis mounted on the support chassis; a print bar chassis liftably mounted on the maintenance chassis, the print bar chassis having a plurality of print modules mounted thereon, each print module comprising a respective printhead; and an aerosol collector fixed to the support chassis and positioned for collecting ink mist generated during printing.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/02 - Framework
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 29/06 - Special supports, platforms, or trolleys for supporting machines on tables

37.

INKJET INKS FOR MINIMIZING GHOSTING ARTEFACTS

      
Application Number 17680075
Status Pending
Filing Date 2022-02-24
First Publication Date 2022-09-08
Owner Memjet Technology Limited (Ireland)
Inventor Prashar, Jognandan

Abstract

An inkjet ink includes: an ink vehicle; a polymer; a surfactant package containing an ethoxylated acetylenic nonionic surfactant having an HLB value in the range of 5 to 10; and an ABA-type bis-alkoxylated silicone compound. The ink has a surface tension in the range of 26 to 31 mN/m.

IPC Classes  ?

  • C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D 11/322 - Pigment inks
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • C08G 77/46 - Block- or graft-polymers containing polysiloxane sequences containing polyether sequences
  • C08K 5/17 - Amines; Quaternary ammonium compounds
  • C08G 65/08 - Saturated oxiranes
  • C08L 25/14 - Copolymers of styrene with unsaturated esters
  • B41J 2/135 - Nozzles

38.

Wafer assembly for MEMS fabrication

      
Application Number 17739937
Grant Number 11823943
Status In Force
Filing Date 2022-05-09
First Publication Date 2022-09-08
Grant Date 2023-11-21
Owner Memjet Technology Limited (Ireland)
Inventor
  • Arnal, Nicolas
  • Quimpo, Troy Pasiola
  • North, Angus

Abstract

A wafer assembly for use in a MEMS fabrication process. The wafer package includes: a MEMS wafer having a first side and an opposite second side; a silicone-free peel tape releasably attached to the first side of the wafer; a wafer bonding tape attached to the peel tape; and a carrier substrate releasably attached to the first wafer bonding tape.

IPC Classes  ?

  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping

39.

Printhead module having alternate longitudinal ink supply channels and slots

      
Application Number 17744028
Grant Number 11718096
Status In Force
Filing Date 2022-05-13
First Publication Date 2022-08-25
Grant Date 2023-08-08
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason Mark
  • Burke, David Oliver

Abstract

A printhead module includes: a monolithic substrate having alternate longitudinal slots and longitudinal ink supply channels defined through a thickness of the substrate and extending parallel with each other along a length of the substrate; and a plurality of rows of print chips mounted on a front face of the substrate, each row of print chips receiving ink only from a respective one of the ink supply channels. Each one of the longitudinal slots is configured to supply power and data only to a respective one of the rows of print chips.

IPC Classes  ?

40.

Inkjet printhead assembly with wirebond protection

      
Application Number 17565267
Grant Number 11807006
Status In Force
Filing Date 2021-12-29
First Publication Date 2022-06-30
Grant Date 2023-11-07
Owner Memjet Technology Limited (Ireland)
Inventor Horrocks, Glenn

Abstract

A printhead assembly includes: an ink manifold comprised of a first metal; printhead chips mounted on the ink manifold and receiving ink therefrom, each printhead chip having a plurality of bond pads; a PCB mounted on the ink manifold, the PCB having a plurality of contact pads; a plurality of wirebonds interconnecting the bond pads and the contact pads, the wirebonds being comprised of a second metal; an encapsulant material encapsulating the wirebonds, the bond pads and the contact pads; and a voltage source. The ink manifold and the wirebonds are electrically connectable to the voltage source to provide cathodic protection of the wirebonds.

IPC Classes  ?

  • B41J 2/15 - Arrangement thereof for serial printing
  • B41J 2/14 - Structure thereof
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism

41.

Sub-row firing method for single-pass monochrome printing at high speeds

      
Application Number 17467909
Grant Number 11772376
Status In Force
Filing Date 2021-09-07
First Publication Date 2022-03-10
Grant Date 2023-10-03
Owner Memjet Technology Limited (Ireland)
Inventor
  • Hogan, Julie Catherine
  • Palliser, Ronan
  • Sheahan, John
  • Brown, Brian
  • Forbes, Caitriona
  • Lehane, Pat

Abstract

A method of printing an image from a printhead module having a plurality of horizontal ink planes M supplied with a same ink. Each ink plane has a nozzle row and the nozzles rows of all ink planes have vertically aligned nozzles. The method includes the steps of: defining contiguous span groups along each nozzle row, each span group containing N nozzles; allocating dot data for each image line of the image to a predetermined number of nozzles P in each span group of each nozzle row; sending the dot data to the printhead module and firing nozzles sequentially from the ink planes to print the image line. Only one nozzle from each span group in a same nozzle row is fired simultaneously, N is an integer multiple of M, and P is N divided by M.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

42.

Method for single-pass monochrome printing at high speeds

      
Application Number 17467872
Grant Number 11813861
Status In Force
Filing Date 2021-09-07
First Publication Date 2022-03-10
Grant Date 2023-11-14
Owner Memjet Technology Limited (Ireland)
Inventor
  • Hogan, Julie Catherine
  • Palliser, Ronan
  • Sheahan, John
  • Brown, Brian
  • Forbes, Caitriona
  • Lehane, Pat

Abstract

A method of printing an image from a printhead module having a plurality of horizontal nozzle rows. Each nozzle row has a main row portion and a corresponding dropped row portion vertically offset from the main row portion. The method includes the steps of: determining a predetermined delay for the dropped row portions based on the offset, a print speed and a print resolution; allocating dot data for image lines to respective nozzle rows based on the print speed and print resolution, sending first dot data for each main row portion and second dot data for each dropped row portion to the printhead module; and firing nozzles from the main row portions and dropped row portion in a predetermined sequence. Each dropped row portion is fired independently of its corresponding main row portion and delayed relative to its corresponding main row portion by the predetermined delay.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

43.

Print chip configured for single-pass monochrome printing at high speeds

      
Application Number 17467896
Grant Number 11820139
Status In Force
Filing Date 2021-09-07
First Publication Date 2022-03-10
Grant Date 2023-11-21
Owner Memjet Technology Limited (Ireland)
Inventor
  • Hogan, Julie Catherine
  • Palliser, Ronan
  • Sheahan, John
  • Brown, Brian
  • Forbes, Caitriona
  • Lehane, Pat

Abstract

A print chip includes: an elongate silicon substrate defining nominal leading and trailing longitudinal sides of the print chip; circuitry layers positioned on the silicon substrate; and a MEMS layer positioned on the circuitry layers. The MEMS layer includes a plurality of parallel nozzle rows, each nozzle row having a plurality of inkjet nozzle devices arranged in a main row portion and a dropped row portion offset from the main row portion. The circuitry layers include data latches configured to provide dot data for the inkjet nozzle devices. A first row of data latches is positioned adjacent a leading row of the main row portion, and a second row of data latches is positioned adjacent a trailing row of the dropped row portion.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

44.

Ramping dot data for single-pass monochrome printing at high speeds

      
Application Number 17468164
Grant Number 11724502
Status In Force
Filing Date 2021-09-07
First Publication Date 2022-03-10
Grant Date 2023-08-15
Owner Memjet Technology Limited (Ireland)
Inventor
  • Brown, Brian
  • Hogan, Julie
  • Palliser, Ronan
  • Nazneen, Keshu
  • Le Hir, Juliette
  • Hardy, Rodney

Abstract

A method of printing an image from a printhead module having a plurality of horizontal nozzle rows. The method includes the steps of: allocating first dot data for an image line of the image to nozzles in a main row portion of a first nozzle row; allocating second dot data for the image line to nozzles in a dropped row portion of the first nozzle row; sending the first and second dot data to the printhead module and firing respective droplets. Some bits of the first dot data correspond to pixels of the image line aligned with the dropped row portion, and some bits of the second dot data correspond to pixels of the image line aligned with the main row portion.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/145 - Arrangement thereof
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

45.

Mismatched nozzle rows for single-pass monochrome printing at high speeds

      
Application Number 17468199
Grant Number 11787182
Status In Force
Filing Date 2021-09-07
First Publication Date 2022-03-10
Grant Date 2023-10-17
Owner Memjet Technology Limited (Ireland)
Inventor
  • Brown, Brian
  • Hogan, Julie
  • Palliser, Ronan
  • Nazneen, Keshu
  • Le Hir, Juliette
  • Hardy, Rodney

Abstract

A method of printing an image from a printhead module having a plurality of horizontal nozzle rows, the method including the steps of: allocating first dot data for an image line of the image to nozzles of a main row portion of a first nozzle row; allocating second dot data for the image line to nozzles of a dropped row portion of a second nozzle row; and sending the first and second dot data to the printhead module and firing respective droplets. Each nozzle row of the printhead module has a same number of nozzles N; and the first nozzle row and the second nozzle row are non-corresponding nozzle rows, such that a number of nozzles contained in the main portion of the first nozzle row and a number of nozzles contained in the dropped row portion of the second nozzle row is greater or fewer than N nozzles.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/145 - Arrangement thereof

46.

Inkjet printhead having robust encapsulation of wirebonds

      
Application Number 17399818
Grant Number 11701883
Status In Force
Filing Date 2021-08-11
First Publication Date 2022-02-17
Grant Date 2023-07-18
Owner Memjet Technology Limited (Ireland)
Inventor
  • Perez, Elmer Dimaculangan
  • Tan, See-Huat
  • Horrocks, Glenn
  • Hossain, Mohammad
  • Webb, Michael John
  • Blanquer, Pascal
  • Coolen, Erik

Abstract

An electronic assembly includes a substrate having a die and PCB mounted thereon. Wirebonds interconnect bond pads of the die with contact pads of the PCB, each wirebond having a first end portion bonded to a respective bond pad, an opposite second end portion bonded to a respective contact pad and an intermediate section extending between the first and second end portions. A dam encapsulant encapsulates each of the first and second end portions, a first fill encapsulant contacts the substrate and the dam encapsulant; and a second fill encapsulant overlies the first fill encapsulant. The first fill encapsulant has a lower modulus of elasticity than the second fill encapsulant and the dam encapsulant.

IPC Classes  ?

47.

MEMS CHIP ASSEMBLY HAVING MULTIPLE TRENCHES

      
Application Number 17096892
Status Pending
Filing Date 2020-11-12
First Publication Date 2021-03-04
Owner MEMJET TECHNOLOGY LIMITED (Ireland)
Inventor
  • Perez, Elmer Dimaculangan
  • North, Angus
  • Lowe, Graeme
  • Tan, See-Huat
  • Barton, Christopher

Abstract

A MEMS chip assembly includes: a support structure having a chip mounting surface; a MEMS chip mounted on the chip mounting surface, the MEMS chip having an active surface including one or more rows of MEMS devices and a row of bond pads disposed alongside a connection edge of the MEMS chip and parallel with the rows of MEMS devices; electrical connectors connected to the bond pads; and an encapsulant material covering the electrical connectors. The MEMS chip has a plurality of trenches defined in the active surface, the trenches extending parallel with the rows of MEMS devices and disposed between the bond pads and the MEMS devices. The encapsulant material does not encroach past the trenches towards the MEMS devices.

IPC Classes  ?

  • B64C 39/02 - Aircraft not otherwise provided for characterised by special use
  • G05D 1/00 - Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot

48.

Process for forming inkjet nozzle devices

      
Application Number 16790531
Grant Number 10822228
Status In Force
Filing Date 2020-02-13
First Publication Date 2020-06-11
Grant Date 2020-11-03
Owner Memjet Technology Limited (Ireland)
Inventor
  • North, Angus
  • O'Reilly, Ronan
  • Mcavoy, Gregory

Abstract

A process for forming inkjet nozzle devices on a frontside surface of a wafer substrate. The process includes the steps of: (i) providing the wafer substrate having a plurality of etched holes defined in the frontside surface, each etched hole being filled with first and second polymers such that the second polymer is coplanar with the frontside surface; (ii) forming the inkjet nozzle devices on the frontside surface using MEMS fabrication steps; and (iii) removing the first and second polymers via oxidative ashing, wherein first and second polymers are different.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • B41J 2/16 - Production of nozzles

49.

Print module containing printhead tilting mechanism

      
Application Number 16591529
Grant Number 10870298
Status In Force
Filing Date 2019-10-02
First Publication Date 2020-04-09
Grant Date 2020-12-22
Owner Memjet Technology Limited (Ireland)
Inventor
  • Burke, David
  • Berry, Norman
  • Anothonysamy, Harrick Selvan
  • Anciano, Reynovel Pacinio
  • Fah, Soon Keat
  • Say, Poh Lai

Abstract

A print module including: a cradle having a longitudinal cavity; an elongate printhead carrier positioned in the longitudinal cavity, the printhead carrier having a first end and a second end, the printhead carrier being pivotable relative to the cradle about a pivot axis the second end; a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead carrier, the supply assembly having ink couplings for fluidic connection to a printhead received in the printhead carrier; and a mechanical linkage interconnecting the first end of the printhead carrier and the supply assembly. Reciprocal movement of the supply assembly moves the printhead carrier between a tilted position and a non-tilted position.

IPC Classes  ?

  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/175 - Ink supply systems
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/54 - Locking devices applied to printing mechanisms
  • B41J 29/02 - Framework

50.

Printing system having multiple printheads and bypass lines

      
Application Number 16460891
Grant Number 10737512
Status In Force
Filing Date 2019-07-02
First Publication Date 2019-10-24
Grant Date 2020-08-11
Owner Memjet Technology Limited (Ireland)
Inventor
  • Rosati, Robert
  • Petch, David
  • Burney, David
  • Sykora, Jim
  • Regas, Kenneth A.
  • Bound, Andy
  • Doherty, Neil
  • Dennis, Scott
  • Jones, Ben
  • Buyda, Oksana
  • Tonthat, Locson
  • Buyda, Andrew
  • Kirk, Patrick
  • Hunt, Loren
  • Dewey, Jason
  • Trinchera, Jim
  • Cressman, Bill
  • Zech, Ron

Abstract

A printing system includes: an ink supply; a feed line coupled to the ink supply; a return line coupled to the ink supply; and a plurality of printhead modules each having an inlet port fluidically coupled to the feed line and an outlet port fluidically coupled to the return line. Each print module has a bypass line fluidically coupling the feed line to the return line. The bypass line is open for both priming and printing operations.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/175 - Ink supply systems
  • B41J 29/02 - Framework
  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 2/18 - Ink recirculation systems
  • B41J 15/04 - Supporting, feeding, or guiding devices; Mountings for web rolls or spindles

51.

Method of manufacturing inkjet printhead

      
Application Number 16446535
Grant Number 10525701
Status In Force
Filing Date 2019-06-19
First Publication Date 2019-10-10
Grant Date 2020-01-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew
  • Fielder, Simon
  • Gimona, Michele
  • Woffenden, Albert

Abstract

A method of forming an inkjet printhead. The method includes the steps of: providing a metal alloy shim having a plurality of shim apertures; nitriding a surface of the shim; bonding the shim to a rigid elongate manifold having ink supply channels, such that each shim aperture is in fluid communication with a respective ink supply channel; and bonding printhead chips to the shim, thereby forming the inkjet printhead.

IPC Classes  ?

  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 29/02 - Framework
  • B41J 29/13 - Cases or covers
  • B41J 2/16 - Production of nozzles
  • B41J 2/175 - Ink supply systems
  • B41J 2/14 - Structure thereof
  • B41J 25/34 - Bodily-changeable print heads or carriages

52.

Inkjet printhead having flared outlets

      
Application Number 16435389
Grant Number 10589537
Status In Force
Filing Date 2019-06-07
First Publication Date 2019-09-26
Grant Date 2020-03-17
Owner Memjet Technology Limited (Ireland)
Inventor
  • Jackson, Garry
  • Berry, Norman
  • Hudson, Michael
  • Brown, Brian
  • Mallinson, Samuel
  • Mcbain, Geordie

Abstract

An inkjet printhead including: an elongate fluid manifold having a base defining a plurality of fluid outlets; and printhead chips attached to the base, each printhead chip receiving printing fluid from a plurality of the fluid outlets. All fluid outlets are laterally flared towards a side of a respective printhead chip.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/515 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements line printer type
  • B41J 2/175 - Ink supply systems
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

53.

Process for filling etched holes using first and second polymers

      
Application Number 16409687
Grant Number 10597290
Status In Force
Filing Date 2019-05-10
First Publication Date 2019-08-29
Grant Date 2020-03-24
Owner Memjet Technology Limited (Ireland)
Inventor
  • North, Angus
  • O'Reilly, Ronan
  • Mcavoy, Gregory

Abstract

A process for filling one or more etched holes defined in a frontside surface of a wafer substrate. The process includes the steps of: depositing a layer of a thermoplastic first polymer onto the frontside surface and into each hole until the holes are overfilled with the first polymer; depositing a layer of a photoimageable second polymer different than the first polymer; selectively removing the second polymer from regions outside a periphery of the holes; exposing the wafer substrate to a controlled oxidative plasma so as to reveal the frontside surface of the wafer substrate; and planarizing the frontside surface to provide holes filled with a plug of the first polymer only, each plug having a respective upper surface coplanar with the frontside surface.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • B41J 2/16 - Production of nozzles

54.

Inkjet printhead having two rows of two-color print chips

      
Application Number 16377069
Grant Number 10717282
Status In Force
Filing Date 2019-04-05
First Publication Date 2019-08-01
Grant Date 2020-07-21
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a manifold having first, second, third and fourth ink supply channels extending along the manifold and corresponding first, second, third and fourth rows of outlets defined in the manifold, wherein a first ink delivery group contains the first and second rows of outlets and a second ink delivery group contains the third and fourth rows of outlets. A first row of printhead chips is mounted to a lower surface of the manifold and a second row of printhead chips is mounted to the lower surface of the manifold. Each row of printhead chips prints two ink colors to provide a four-color printhead.

IPC Classes  ?

  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/14 - Structure thereof
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

55.

Method of stitching overlapping printhead segments

      
Application Number 16374676
Grant Number 10625518
Status In Force
Filing Date 2019-04-03
First Publication Date 2019-07-25
Grant Date 2020-04-21
Owner Memjet Technology Limited (Ireland)
Inventor Lau, Daniel

Abstract

A method of printing an image using a printing system having first and second overlapping printhead segments. The method includes the steps of: (i) identifying a strip of the image to be printed in an overlap region of the first and second printhead segments; (ii) determining a stitching technique for the first and second printhead segments; and (iii) printing the image using the first and second printhead segments, the printing including stitching the first and second printhead segments in the overlap region using the determined stitching technique. The stitching technique may be a butt stitch or a feathered stitch, dependent on image content in the strip.

IPC Classes  ?

  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 19/14 - Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction
  • G06K 15/10 - Arrangements for producing a permanent visual presentation of the output data using printers by matrix printers
  • H04N 1/407 - Control or modification of tonal gradation or of extreme levels, e.g. background level
  • H04N 1/56 - Processing of colour picture signals
  • H04N 1/58 - Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction
  • G06T 3/00 - Geometric image transformation in the plane of the image
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/07 - Ink jet characterised by jet control
  • G06K 15/12 - Arrangements for producing a permanent visual presentation of the output data using printers by photographic printing

56.

Media transport mechanism for printer having multiple printheads

      
Application Number 16267259
Grant Number 10688814
Status In Force
Filing Date 2019-02-04
First Publication Date 2019-06-06
Grant Date 2020-06-23
Owner Memjet Technology Limited (Ireland)
Inventor
  • Balala, Rommel
  • Baterna, Dan
  • Sy, Billy
  • Hibbard, Christopher

Abstract

3 for optimal printing results.

IPC Classes  ?

  • B41J 13/00 - Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets
  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B65H 5/06 - Feeding articles separated from piles; Feeding articles to machines by rollers
  • B65H 29/12 - Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands
  • B41J 11/20 - Platen adjustments for varying the strength of impression, for a varying number of papers, for wear or for alignment
  • B65H 11/00 - Feed tables
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 11/02 - Platens
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 13/03 - Rollers driven, e.g. feed rollers separate from platen
  • B41J 2/01 - Ink jet

57.

Robust compliance for use in inkjet printer

      
Application Number 16250932
Grant Number 10730311
Status In Force
Filing Date 2019-01-17
First Publication Date 2019-05-23
Grant Date 2020-08-04
Owner Memjet Technology Limited (Ireland)
Inventor
  • Profaca, Mark
  • Alemana, Gilbert
  • Dimagiba, Richard
  • Shields, Brendan
  • Balala, Rommel

Abstract

A compliance for use in an inkjet printer. The compliance includes flexible bellows configured for dampening pressure fluctuations in a fluid, wherein the bellows comprise a plurality of concentric portions joined via concertinaed sidewalls.

IPC Classes  ?

58.

Inkjet printhead having braced longitudinal channel

      
Application Number 16005527
Grant Number 10384461
Status In Force
Filing Date 2018-06-11
First Publication Date 2019-05-23
Grant Date 2019-08-20
Owner MEMJET TECHNOLOGY LIMITED (Ireland)
Inventor
  • Jackson, Garry
  • Berry, Norman
  • Hudson, Michael
  • Brown, Brian
  • Mallinson, Samuel
  • Mcbain, Geordie

Abstract

An inkjet printhead includes: an elongate fluid manifold including a longitudinally extending channel having a pair of opposite longitudinal sidewalls and a base defining a floor of the channel; a plurality of printhead chips bonded to the base of the fluid manifold, each printhead chip receiving ink from fluid outlets defined in the floor of the channel; and a plurality of transverse ribs extending across the channel between the sidewalls, each transverse rib extending upwardly from the floor of the channel.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/515 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements line printer type

59.

Integrated inkjet module

      
Application Number 16164703
Grant Number 10668753
Status In Force
Filing Date 2018-10-18
First Publication Date 2019-04-25
Grant Date 2020-06-02
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

An integrated inkjet module includes: first and second opposite end brackets; a single print module asymmetrically positioned between the end brackets, the print module having an elongate printhead; a wiper carriage positioned between a first end of the print module and the first end bracket, the wiper carriage being configured for longitudinally wiping the printhead; and a print module carrier mounted between the first and second end brackets. The print module includes a mounting arm bridging over the wiper carriage and the print module carrier is slidably liftable relative to the first and second end brackets.

IPC Classes  ?

  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 29/02 - Framework
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 19/00 - Character- or line-spacing mechanisms
  • B41J 2/145 - Arrangement thereof

60.

Cable array for inkjet module

      
Application Number 16164716
Grant Number 10668754
Status In Force
Filing Date 2018-10-18
First Publication Date 2019-04-25
Grant Date 2020-06-02
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

An inkjet module includes: first and second opposite end brackets; a print module slidably mounted between the end brackets for raising and lowering the print module relative to the end brackets, the print module having a front face, a rear face and an elongate printhead positioned at a lower surface of the print module; and a cable array including a plurality of laterally arranged cables connected to the print module. The cables of the cable array extend in a common plane parallel to the rear face of the print module and follow a curved path such that an outer cable is longer than an inner cable.

IPC Classes  ?

  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 29/02 - Framework
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 19/00 - Character- or line-spacing mechanisms
  • B41J 2/145 - Arrangement thereof

61.

Integrated inkjet module for scalable printer

      
Application Number 16164712
Grant Number 10647137
Status In Force
Filing Date 2018-10-18
First Publication Date 2019-04-25
Grant Date 2020-05-12
Owner MEMJET TECHNOLOGY LIMITED (Ireland)
Inventor Profaca, Mark

Abstract

An integrated inkjet module for a scalable inkjet printer includes: first and second opposite end brackets; a print module asymmetrically positioned between the end brackets; and a maintenance module for maintaining an inkjet printhead of the print module. The maintenance module includes a frame fixedly mounted between the end brackets having a longer leg extending along one side of the print module and a shorter leg positioned between a first end of the print module and the first end bracket. The print module is slidably liftable relative to the end brackets, the longer leg includes a laterally extendible capper for capping the printhead and the shorter leg includes a longitudinally movable wiper carriage for wiping the printhead.

IPC Classes  ?

  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 29/02 - Framework
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 19/00 - Character- or line-spacing mechanisms
  • B41J 2/145 - Arrangement thereof

62.

Print module for supplying ink to printhead at constant pressure

      
Application Number 16215441
Grant Number 10744785
Status In Force
Filing Date 2018-12-10
First Publication Date 2019-04-11
Grant Date 2020-08-18
Owner Memjet Technology Limited (Ireland)
Inventor
  • Meyer, Craig
  • Thelander, Jason
  • Profaca, Mark
  • Wheatley, Stuart

Abstract

A print module configured for interconnection between a positive ink line and a negative ink line via respective inlet and outlet lines. The print module includes: an inlet port; an outlet port; a printhead interconnected between the inlet port and the outlet port; a control valve positioned at the inlet port for controlling an ink pressure in the printhead; an ink pressure sensor for sensing an ink pressure in the print module; and a controller for receiving feedback from the pressure sensor and controlling the control valve. During printing, the ink pressure sensor, the controller and the control valve cooperate to control a backpressure in the printhead within a predetermined backpressure range.

IPC Classes  ?

63.

Spittoon and roller arrangement for guiding media in print engine

      
Application Number 16141894
Grant Number 10675891
Status In Force
Filing Date 2018-09-25
First Publication Date 2019-03-28
Grant Date 2020-06-09
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

A print engine includes: a media support chassis having a plurality of guide rollers mounted between opposite sidewalls thereof, the plurality of guide rollers defining a curved media feed path; a plurality of spittoons, each spittoon being positioned between a neighboring pair of guide rollers and each spittoon having an upper guide portion; and a plurality of printheads, each printhead opposing a respective spittoon. The upper guide portion at least partially intersects a common tangential plane defined between a neighboring pair of rollers, such that print media fed along the curved media path contact the rollers and upper guide portions of the spittoons.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/02 - Framework
  • B41J 2/155 - Arrangement thereof for line printing

64.

Print module having replaceable printhead cartridge

      
Application Number 16182370
Grant Number 10744797
Status In Force
Filing Date 2018-11-06
First Publication Date 2019-03-28
Grant Date 2020-08-18
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

A print module includes a printhead cartridge releasably engaged with a supply module. The supply module has an ink inlet module and an ink outlet module positioned on opposite external sidewalls of the body and flanking the body, each of the ink inlet and ink outlet modules having a respective ink coupling engaged with complementary inlet and outlet couplings of the printhead cartridge. The ink inlet and outlet modules each include a respective lever mechanism for slidably moving the ink inlet and outlet modules relative to the opposite external sidewalls of the body between a coupled position in which the supply module is fluidically coupled to the printhead cartridge and a decoupled position in which the supply module is fluidically decoupled from the printhead cartridge.

IPC Classes  ?

  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/02 - Framework
  • B41J 2/155 - Arrangement thereof for line printing

65.

Print engine for color digital inkjet press

      
Application Number 16141880
Grant Number 10457075
Status In Force
Filing Date 2018-09-25
First Publication Date 2019-03-28
Grant Date 2019-10-29
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

A print engine includes: a media support chassis having a plurality of guide rollers mounted between opposite sidewalls thereof, the plurality of guide rollers defining a media feed path; a maintenance chassis pivotally mounted on the media support chassis, the maintenance chassis including a plurality of maintenance modules fixedly mounted thereto and aligned along the media feed path; and a print bar chassis movably mounted on the maintenance chassis, the print bar chassis including a plurality of print modules, each print module having a printhead; a pivot actuation mechanism for pivoting the maintenance chassis between an open and closed position; and a lift mechanism for raising and lowering the print bar chassis relative to the maintenance chassis between a maintenance position a printing position.

IPC Classes  ?

  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 29/02 - Framework

66.

Radial lift mechanism for print engine having multiple printheads

      
Application Number 16141884
Grant Number 10654293
Status In Force
Filing Date 2018-09-25
First Publication Date 2019-03-28
Grant Date 2020-05-19
Owner Memjet Technology Limited (Ireland)
Inventor Profaca, Mark

Abstract

A print engine includes: a media support chassis defining a curved media feed path; a maintenance chassis mounted on the media support chassis; a plurality of maintenance modules fixedly mounted between sidewalls of the maintenance chassis; a plurality of guide rails extending radially upwards from the maintenance chassis; a plurality of print module carriers, each print module carrier being slidingly received on respective parallel guide rails; a plurality of print modules releasably engaged with a respective one of the print module carriers; and a lift mechanism for radially raising and lowering the plurality of print module carriers relative to the maintenance chassis between a maintenance position a printing position.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/15 - Arrangement thereof for serial printing
  • B41J 29/02 - Framework
  • B41J 2/155 - Arrangement thereof for line printing

67.

Spittoon for inkjet printhead

      
Application Number 16184133
Grant Number 10675872
Status In Force
Filing Date 2018-11-08
First Publication Date 2019-03-07
Grant Date 2020-06-09
Owner Memjet Technology Limited (Ireland)
Inventor
  • Baterna, Dan
  • Balala, Rommel

Abstract

A printer includes: an inkjet printhead having a row of printhead chips; a platen having a spittoon slot, the spittoon slot having a length corresponding to a length of the printhead and a width extending between an upstream sidewall and a downstream sidewall of the platen; a roller positioned in the spittoon slot between the upstream and downstream sidewalls for receiving ink spitted from the printhead, a rotation mechanism for rotating the roller; and a scraper positioned for scraping received ink from the roller. A diameter of the roller is less than the width of the spittoon slot, and an upper roller surface is relatively closer to the printhead than an upper surface of the upstream sidewall and/or the downstream sidewall.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 11/02 - Platens

68.

Method of improving printhead decap performance

      
Application Number 16110592
Grant Number 10730304
Status In Force
Filing Date 2018-08-23
First Publication Date 2019-02-28
Grant Date 2020-08-04
Owner Memjet Technology Limited (Ireland)
Inventor
  • Fielder, Simon
  • Tyvoll, David
  • Zhou, Jingyi

Abstract

A method of inhibiting evaporation of water from inkjet nozzles of a printhead. The method includes the steps of: providing a wiping material infused with a liquid composition comprising an evaporation inhibitor; and wiping the wiping material over a nozzle plate of the printhead. The evaporation inhibitor is transferred to the nozzle plate during wiping and thereby inhibits evaporation of water from the inkjet nozzles.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

69.

Method for dry shipment of printheads

      
Application Number 16110611
Grant Number 10457057
Status In Force
Filing Date 2018-08-23
First Publication Date 2019-02-28
Grant Date 2019-10-29
Owner Memjet Technology Limited (Ireland)
Inventor
  • Fielder, Simon
  • Chen, Ming

Abstract

A method of preparing a printhead for dry shipment. The method includes the steps of: treating an ink pathway in the printhead with an aqueous treatment fluid containing at least one ink-soluble solvent having a boiling point of at least 150 degrees; and drying the printhead so as to leave a film of liquid solvent on a surface of the ink pathway. The film of liquid solvent solubilizes organic materials leached or outgassed from the printhead during dry storage or shipment.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

70.

Ink regulator tank for use with degassed inks

      
Application Number 16167403
Grant Number 10639903
Status In Force
Filing Date 2018-10-22
First Publication Date 2019-02-21
Grant Date 2020-05-05
Owner MEMJET TECHNOLOGY LIMITED (Ireland)
Inventor
  • Mcauliffe, Patrick
  • Mallinson, Samuel
  • Mcbain, Geordie

Abstract

An ink tank for an ink delivery system includes: a first ink chamber having an ink inlet port and an ink outlet port; a second ink chamber positioned above the first ink chamber and having a roof defining a tortuous vent pathway open to atmosphere via a gas port; and a diffusion tube interconnecting the first and second ink chambers. The first ink chamber has a smaller volume than the second ink chamber and the diffusion tube minimizes diffusion of air from the second chamber to the first chamber.

IPC Classes  ?

71.

Ink filter with passive de-aeration

      
Application Number 16022449
Grant Number 10369802
Status In Force
Filing Date 2018-06-28
First Publication Date 2019-01-10
Grant Date 2019-08-06
Owner Memjet Technology Limited (Ireland)
Inventor Mcauliffe, Patrick

Abstract

An ink filter for an ink delivery system. The ink filter includes: a filter chamber having a filter inlet port, a filter outlet port and a vent port, the vent port being positioned in a roof of the filter chamber; a filter material positioned between the filter inlet port and the filter outlet port; and a closed vent chamber connected to the vent port. The vent chamber has wall exposed to atmosphere formed of an air-permeable polymer.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/18 - Ink recirculation systems
  • B41J 2/195 - Ink jet characterised by ink handling for monitoring ink quality

72.

Metal alloy shim for mounting printhead chips with high bonding strength

      
Application Number 16051319
Grant Number 10363736
Status In Force
Filing Date 2018-07-31
First Publication Date 2018-12-27
Grant Date 2019-07-30
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew
  • Fielder, Simon
  • Gimona, Michele
  • Woffenden, Albert

Abstract

An inkjet printhead includes: a rigid elongate manifold having ink supply channels extending along its length and a plurality of ink outlets defined therein; a shim attached to the manifold, the shim having a plurality of shim apertures for receiving ink from the ink outlets; and a plurality of printhead chips adhesively bonded directly to the shim, each printhead chip receiving ink from one or more of the ink outlets. The shim is formed of a metal alloy having a CTE of 5 ppm/° C. or less and includes an adhesion-promoting surface film layer.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/16 - Production of nozzles
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/175 - Ink supply systems
  • B41J 25/34 - Bodily-changeable print heads or carriages

73.

Dual nip release mechanism

      
Application Number 15993494
Grant Number 10471742
Status In Force
Filing Date 2018-05-30
First Publication Date 2018-12-06
Grant Date 2019-11-12
Owner Memjet Technology Limited (Ireland)
Inventor Baterna, Dan

Abstract

A dual nip release mechanism includes: a rigid actuator body including a tail portion with a handle and a pivotally-mounted head portion having a nose member extending therefrom; a rocker arm pivotally mounted about a rocker arm shaft, the rocker arm having a proximal end for engagement with part of the nose member and a distal end engaged with a first shaft; and legs hingedly connected to the tail portion, each leg having a foot engaged with a second shaft and a heel for camming engagement with a fixed plate. During use, actuation of the handle causes simultaneous movement of the first and second shafts from a nip closed position to a nip open position via pivoting of the rocker arm and simultaneous camming engagement of the heel with the fixed plate.

IPC Classes  ?

  • B65H 5/06 - Feeding articles separated from piles; Feeding articles to machines by rollers
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 11/14 - Platen-shift mechanisms; Driving gear therefor
  • B65H 29/12 - Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands
  • B41J 13/02 - Rollers
  • B65H 5/38 - Article guides or smoothers, e.g. movable in operation immovable in operation
  • B41J 11/44 - Controlling by devices, e.g. programme tape or contact wheel, moved in correspondence with movement of paper-feeding devices, e.g. platen rotation

74.

Particle collection system for an inkjet printer

      
Application Number 15977992
Grant Number 10464328
Status In Force
Filing Date 2018-05-11
First Publication Date 2018-11-15
Grant Date 2019-11-05
Owner Memjet Technology Limited (Ireland)
Inventor
  • Balala, Rommel
  • Baterna, Dan

Abstract

A printer includes: a printhead; a platen positioned below the printhead for supporting print media conveyed along a media feed direction through a print zone, the platen defining a particle-collection slot upstream of the print zone relative to the media feed direction; and a vacuum chamber in fluid communication with the particle-collection slot. An upper surface of the platen has a plurality of raised ribs extending along the platen in the media feed direction and a dam wall extending across the platen transverse to the ribs. The dam wall is positioned at a downstream side of the particle-collection slot and the ribs extend towards the dam wall from an upstream side of the particle-collection slot.

IPC Classes  ?

75.

Mist extraction system for inkjet printhead

      
Application Number 15977986
Grant Number 10525712
Status In Force
Filing Date 2018-05-11
First Publication Date 2018-11-15
Grant Date 2020-01-07
Owner MEMJET TECHNOLOGY LIMITED (Ireland)
Inventor
  • Baterna, Dan
  • Balala, Rommel

Abstract

A printer includes: a platen having an ink-collection slot extending across its width; a wick bar received in the ink-collection slot, wherein an upstream gap and a downstream gap are defined at either side of the wick bar relative to a media feed direction; a printhead positioned over the wick bar; and a vacuum chamber in fluid communication with the ink-collection slot. The wick bar has a wick surface sloped upwards from the upstream gap towards the downstream gap.

IPC Classes  ?

76.

Low toxicity ink formulations with improved printhead lifetime

      
Application Number 15933284
Grant Number 10696855
Status In Force
Filing Date 2018-03-22
First Publication Date 2018-10-18
Grant Date 2020-06-30
Owner Memjet Technology Limited (Ireland)
Inventor
  • Prashar, Jognandan
  • Blake, Iain
  • Shepard, Michele

Abstract

An inkjet ink includes: (i) a disazo dye of formula (I): (ii) 1,3-propanediol; (iii) a glycol compound selected from the group consisting of: triethylene glycol and tetraethylene glycol; and (iv) water. The ink has low toxicity and is preferably absent ethylene glycol and sulfolane.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
  • B41J 2/05 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers produced by the application of heat
  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
  • C09D 11/328 - Inkjet printing inks characterised by colouring agents characterised by dyes
  • C09B 31/02 - Disazo dyes
  • C09B 31/06 - Disazo dyes from a coupling component "C" containing a directive hydroxy group
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment

77.

Hybrid printhead maintenance system for wiping and priming

      
Application Number 15922679
Grant Number 10449769
Status In Force
Filing Date 2018-03-15
First Publication Date 2018-09-20
Grant Date 2019-10-22
Owner Memjet Technology Limited (Ireland)
Inventor Karppinen, Vesa

Abstract

A maintenance system for maintaining an elongate inkjet printhead. The maintenance system includes: a carriage movable longitudinally along the printhead, the carriage including a maintenance member having a primary suction nozzle facing inkjet nozzles of the printhead and a wiper adjacent the primary suction nozzle; a traversing mechanism for traversing the carriage longitudinally along the printhead; and an engagement mechanism for urging the wiper and the printhead into engagement with each other. During use, the wiper contacts a non-printing part of the printhead and the primary suction nozzle is spaced apart from the printhead.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

78.

Print module with air exhaust opposite ink ejection direction

      
Application Number 15976694
Grant Number 10513132
Status In Force
Filing Date 2018-05-10
First Publication Date 2018-09-13
Grant Date 2019-12-24
Owner Memjet Technology Limited (Ireland)
Inventor
  • Profaca, Mark
  • Burke, David
  • Sy, Billy
  • Alemana, Gilbert
  • Hibbard, Christopher
  • Balala, Rommel

Abstract

A print module includes: a body housing at least one printed circuit board (PCB); an air inlet and an air outlet positioned in a roof of the body; an air pathway extending through the body between the air inlet and the air outlet; and an inkjet printhead positioned at a lower part of the body opposite the roof, the inkjet printhead electrically communicating with the PCB.

IPC Classes  ?

  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/175 - Ink supply systems
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 25/00 - Actions or mechanisms not otherwise provided for
  • B41J 29/02 - Framework
  • B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism

79.

Capping assembly for inkjet printhead

      
Application Number 15894024
Grant Number 10518536
Status In Force
Filing Date 2018-02-12
First Publication Date 2018-08-16
Grant Date 2019-12-31
Owner Memjet Technology Limited (Ireland)
Inventor Mcauliffe, Patrick

Abstract

A capping assembly includes a capper having a perimeter seal for sealing engagement with the printhead. The capping assembly has an enclosed capping volume when the capper is sealingly engaged with the printhead, whereby the capping volume is variable in response to relative differences in pressures inside and outside the capping volume.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • F16J 3/04 - Bellows
  • F16J 15/04 - Sealings between relatively-stationary surfaces without packing between the surfaces, e.g. with ground surfaces, with cutting edge

80.

Inkjet printhead for full color pagewide printing

      
Application Number 15888832
Grant Number 10293609
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-05-21
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a manifold having first, second, third and fourth ink supply channels extending along the manifold and corresponding first, second, third and fourth rows of outlets defined in the manifold, wherein a first ink delivery group contains the first and second rows of outlets and a second ink delivery group contains the third and fourth rows of outlets. A first array of printhead chips is mounted to a lower surface of the manifold so as receive ink from the first and second rows of outlets and a second array of printhead chips is mounted to the lower surface of the manifold so as to receive receive ink from the third and fourth rows of outlets. A distance between the first and second ink delivery groups is greater than a distance between the first and second rows of outlets or the third and fourth rows of outlets.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/175 - Ink supply systems
  • B41J 25/34 - Bodily-changeable print heads or carriages

81.

Printhead having heated shield plate

      
Application Number 15888841
Grant Number 10239316
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-03-26
Owner MEMJET TECHNOLOGY LIMITED (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a manifold having a plurality of ink outlets defined in a manifold surface; a plurality of printhead chips mounted to the manifold surface and aligned with the ink outlets; a PCB mounted to the manifold surface and offset from the ink outlets, the PCB being electrically connected to the printhead chips; and a shield plate covering the PCB. The shield plate has one face in thermal contact with the PCB and an exposed opposite face defining a lower surface of the printhead.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 2/14 - Structure thereof
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

82.

Robust printhead chip mounting suitable for long inkjet printheads

      
Application Number 15888852
Grant Number 10442200
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-10-15
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a rigid elongate manifold having ink supply channels extending along its length and a plurality of ink outlets defined therein; a shim attached to the manifold, the shim having a plurality of shim apertures for receiving ink from the ink outlets; and a plurality of printhead chips adhesively bonded directly to the shim, each printhead chip receiving ink from one or more of the ink outlets. The the shim is formed of a metal alloy having a CTE of 5 ppm/° C. or less.

IPC Classes  ?

  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/14 - Structure thereof
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

83.

Bubble-tolerant high flow printhead architecture

      
Application Number 15888857
Grant Number 10525710
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2020-01-07
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a manifold having an ink supply channel and a lower surface with a longitudinal ink cavity defined therein; a shim attached to the lower surface so as to bridge across the longitudinal ink cavity, the shim having a plurality of shim apertures for receiving ink from the longitudinal ink cavity; and a plurality of printhead chips attached to the shim. A plurality of through-holes are defined in the manifold to provide fluid communication between the ink supply channel and the longitudinal ink cavity. Each through-hole has a first portion with a first end defined in the roof and a second portion extending through a sidewall of the ink cavity such that the shim seals an end of the second portion.

IPC Classes  ?

  • B41J 2/15 - Arrangement thereof for serial printing
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/14 - Structure thereof
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

84.

Fluid coupling having equalized pressure drops in multiple fluid lines

      
Application Number 15888876
Grant Number 10369792
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-08-06
Owner Memjet Technology Limited (Ireland)
Inventor
  • Berry, Norman
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

A multi-channel fluid coupling for a printhead includes: a body having a first channel and a second channel, the second channel being relatively longer than the first channel; a first inlet port and a first outlet port at opposite ends of the first channel; and a second inlet port and a second outlet port at opposite ends of the second channel. The first and second channels are configured for proportionally modulating a flow resistance of fluids flowing therethrough.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 2/14 - Structure thereof
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

85.

Printhead chip array having dummy color channel

      
Application Number 15888893
Grant Number 10377137
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-08-13
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a manifold having a plurality of ink outlets defined in a manifold surface; a plurality of printhead chips mounted to the manifold surface, each printhead chip having an odd number of color channels and each color channel having one or more respective rows of inkjet nozzle devices. A central color channel of each printhead chip is a dummy color channel that does not receive ink from the manifold.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

86.

Elongate printhead having robust electrical assembly

      
Application Number 15888864
Grant Number 10300700
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-05-28
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a rigid elongate carrier having an ink supply channel and a lower surface having a plurality of printhead chips mounted thereon; a rigid PCB attached to the lower surface of the carrier, the PCB extending a length of the carrier and projecting laterally beyond a sidewall of the carrier; a lead retainer attached to the sidewall of the carrier; and a plurality of leads extending upwardly from contact pads positioned along a longitudinal edge portion of the PCB, each lead being secured to the sidewall of the carrier via the lead retainer. The PCB supplies power and data to the printhead chips via electrical connections between the PCB and the printhead chips.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

87.

Inkjet printhead having dynamic response to pressure changes

      
Application Number 15888872
Grant Number 10343402
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-07-09
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a rigid elongate manifold having one or more ink supply channels extending along its length, each ink supply channel having a base defining a plurality of ink outlets and a roof comprising an elongate flexible film; and a plurality of printhead chips mounted to the manifold, each printhead chip receiving ink from one or more of the ink outlets The flexible film includes a plurality of operatively independent bellows positioned along a length of one or more ink supply channels.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/14 - Structure thereof

88.

Shim alignment for multiple rows of printhead chips

      
Application Number 15888880
Grant Number 10357970
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-07-23
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

An inkjet printhead includes: a manifold having a plurality of ink outlets defined in a manifold surface; a shim adhesively bonded to the manifold surface, the shim having apertures aligned with the ink outlets; a first row of printhead chips adhesively bonded to the shim; and a second row of printhead chips adhesively bonded to the shim. The shim is a one-part common shim for mounting all printhead chips of the first and second row.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

89.

Strain-relieved printhead casing

      
Application Number 15888888
Grant Number 10350891
Status In Force
Filing Date 2018-02-05
First Publication Date 2018-08-09
Grant Date 2019-07-16
Owner Memjet Technology Limited (Ireland)
Inventor
  • Thelander, Jason
  • Burke, David
  • Thomas, Andrew

Abstract

A printhead cartridge includes: an elongate manifold; a plurality of printhead chips mounted to a lower part of the manifold; and a casing mounted to an upper part of the manifold. The casing includes a first casing part and a second casing part, the first and second parts being longitudinally biased towards each such that the casing is expandable along a longitudinal axis of the manifold.

IPC Classes  ?

  • B41J 2/14 - Structure thereof
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/175 - Ink supply systems
  • B41J 2/19 - Ink jet characterised by ink handling for removing air bubbles
  • B41J 25/34 - Bodily-changeable print heads or carriages

90.

Roller feed mechanism for printer having multiple printheads

      
Application Number 15884242
Grant Number 10232647
Status In Force
Filing Date 2018-01-30
First Publication Date 2018-08-02
Grant Date 2019-03-19
Owner Memjet Technology Limited (Ireland)
Inventor
  • Balala, Rommel
  • Baterna, Dan
  • Sy, Billy
  • Hibbard, Christopher

Abstract

3 for optimal printing results.

IPC Classes  ?

  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 13/03 - Rollers driven, e.g. feed rollers separate from platen
  • B41J 2/155 - Arrangement thereof for line printing
  • B65H 11/00 - Feed tables
  • B65H 5/06 - Feeding articles separated from piles; Feeding articles to machines by rollers
  • B65H 29/12 - Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands
  • B41J 11/20 - Platen adjustments for varying the strength of impression, for a varying number of papers, for wear or for alignment
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 11/02 - Platens
  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B41J 13/00 - Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets
  • B41J 2/01 - Ink jet

91.

Method of multi-color pagewide printing with optimized nozzle hydration

      
Application Number 15879327
Grant Number 10377131
Status In Force
Filing Date 2018-01-24
First Publication Date 2018-05-31
Grant Date 2019-08-13
Owner Memjet Technology Limited (Ireland)
Inventor
  • North, Angus
  • Palma, Philip
  • Brown, Brian
  • Mcrae, Duncan
  • Prashar, Jognandan
  • Jurevic, Mile
  • Mallinson, Sam
  • Mcbain, Geordie
  • Lin, Chia-An
  • Myers, Sam
  • Tsang, Jeffrey
  • Powell, Benjamin

Abstract

A method of multi-color printing in a single pass using a fixed pagewide array of monochrome inkjet printheads. The printheads are aligned with each other in a media feed direction and the method includes the steps of: feeding print media along the media feed direction past a first printhead positioned furthest upstream in the array, a third printhead downstream of the first printhead and a second printhead positioned furthest downstream in the array; printing a yellow ink onto the print media using the first printhead; printing a black ink onto the print media using the third printhead; and printing a cyan or magenta ink onto the print media using the second printhead.

IPC Classes  ?

  • B41J 2/01 - Ink jet
  • B41J 2/07 - Ink jet characterised by jet control
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

92.

Method of minimizing stitching artifacts for overlapping printhead segments

      
Application Number 15697387
Grant Number 10293622
Status In Force
Filing Date 2017-09-06
First Publication Date 2018-05-10
Grant Date 2019-05-21
Owner MEMJET TECHNOLOGY LIMITED (Ireland)
Inventor Lau, Daniel

Abstract

A method of printing an image using a printing system having first and second overlapping printhead segments. The method includes the steps of: (i) identifying a strip of the image to be printed in an overlap region of the first and second printhead segments; (ii) determining a continuous seam in the strip based on a cost function, the cost function including a parameter selected from the group consisting of: (a) minimizing a density of printed ink along the seam; and (b) maximizing a luminance along the seam; and (iii) printing the image using the first and second printhead segments, the printing including stitching the first and second printhead segments across the seam. The strip contains variable image content and the seam has a varying position within the strip.

IPC Classes  ?

  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 19/14 - Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction
  • G06K 15/10 - Arrangements for producing a permanent visual presentation of the output data using printers by matrix printers
  • H04N 1/407 - Control or modification of tonal gradation or of extreme levels, e.g. background level
  • B41J 2/07 - Ink jet characterised by jet control
  • G06K 15/12 - Arrangements for producing a permanent visual presentation of the output data using printers by photographic printing
  • H04N 1/56 - Processing of colour picture signals
  • H04N 1/58 - Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction

93.

Method of printing foreground and background images with overlapping printhead segments

      
Application Number 15697389
Grant Number 10414171
Status In Force
Filing Date 2017-09-06
First Publication Date 2018-05-10
Grant Date 2019-09-17
Owner Memjet Technology Limited (Ireland)
Inventor Lau, Daniel

Abstract

A method of printing an image using a printing system having first and second overlapping printhead segments. The method includes the steps of: (i) identifying a strip of the image to be printed in an overlap region of the first and second printhead segments; (ii) identifying a foreground image and a background image for image content contained in the strip; (iii) determining a seam in the foreground image; (iv) printing the foreground image using only nozzles from the first printhead segment at one side of the seam and only nozzles from the second printhead segment at the other side of the seam; and (v) printing the background image using nozzles from both the first and second printhead segments across the overlap region.

IPC Classes  ?

  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B41J 2/21 - Ink jet for multi-colour printing
  • B41J 19/14 - Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction
  • G06K 15/10 - Arrangements for producing a permanent visual presentation of the output data using printers by matrix printers
  • H04N 1/407 - Control or modification of tonal gradation or of extreme levels, e.g. background level
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/07 - Ink jet characterised by jet control
  • G06K 15/12 - Arrangements for producing a permanent visual presentation of the output data using printers by photographic printing
  • H04N 1/56 - Processing of colour picture signals
  • H04N 1/58 - Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction

94.

Printer with sheet feeding past multiple printheads

      
Application Number 15710496
Grant Number 10173438
Status In Force
Filing Date 2017-09-20
First Publication Date 2018-02-01
Grant Date 2019-01-08
Owner Memjet Technology Limited (Ireland)
Inventor
  • Sanaei, Kianoush Mir
  • Tsubono, Makomo
  • Moghaddasian, Reza

Abstract

A printer includes: a first fixed printhead having a respective first print zone; a second fixed printhead positioned downstream of the first printhead relative to a media feed direction, the second printhead having a respective second print zone; an input roller assembly positioned upstream of the first platen, the input roller assembly being configured for feeding media sheets along a downward trajectory towards the first print zone; and an intermediary roller assembly positioned between the first and second print zones, the intermediary roller assembly being configured for receiving the media sheets from the first print zone and feeding the media sheets along a downward trajectory. The second print zone is positioned relatively lower than the first print zone.

IPC Classes  ?

  • B41J 13/10 - Sheet holders, retainers, or stationary guides
  • B41J 2/175 - Ink supply systems
  • B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
  • B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
  • B41J 11/20 - Platen adjustments for varying the strength of impression, for a varying number of papers, for wear or for alignment
  • B41J 2/01 - Ink jet

95.

Suspended inkjet printing system

      
Application Number 15716407
Grant Number 10414178
Status In Force
Filing Date 2017-09-26
First Publication Date 2018-01-18
Grant Date 2019-09-17
Owner Memjet Technology Limited (Ireland)
Inventor
  • Profaca, Mark
  • Kolodko, Julian Paul
  • Stacey, William John
  • Sleijpen, Stephen John
  • Strudwicke, Craig Donald
  • Edwards, Neil Fyfe
  • Brown, Lance Thomas
  • Oste, Toby Desmond
  • O'Donnell, Eric Patrick
  • Sobey, Peter John Morley
  • Bernardi, David
  • Andrew, James

Abstract

A suspended inkjet printing system includes: a pair of support beams extending across a media path; a mounting frame mounted between the support beams, a print head chassis mounted on the mounting frame, the print head chassis being actuable between at least a printing position and a maintenance position; and a plurality of print heads mounted on the print head chassis, each print head extending across the media path and spaced apart along the media path in a direction of media propagation. A plurality of projections extend from the print head chassis into engagement with the mounting frame, the projections controlling a height of the print head chassis relative to the media path.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • B41J 2/21 - Ink jet for multi-colour printing
  • H04N 1/50 - Picture reproducers
  • H04N 1/60 - Colour correction or control
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 25/00 - Actions or mechanisms not otherwise provided for
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 29/02 - Framework
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/14 - Structure thereof

96.

Process for filling etched holes using photoimageable thermoplastic polymer

      
Application Number 15623267
Grant Number 10329146
Status In Force
Filing Date 2017-06-14
First Publication Date 2017-12-07
Grant Date 2019-06-25
Owner Memjet Technology Limited (Ireland)
Inventor
  • North, Angus
  • O'Reilly, Ronan
  • Mcavoy, Gregory

Abstract

A process for filling one or more etched holes defined in a frontside surface of a wafer substrate. The process includes the steps of: (i) depositing a layer of a photoimageable thermoplastic polymer onto the frontside surface and into each hole; (ii) reflowing the polymer; (iii) selectively removing the polymer from regions outside a periphery of each hole, the selective removing comprising exposure and development of the polymer; (iv) optionally repeating steps (i) to (iii) until each hole is overfilled with the polymer; and (v) planarizing the frontside surface to provide one or more holes filled with a plug of the polymer. Each plug has a respective upper surface coplanar with the frontside surface.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • B41J 2/16 - Production of nozzles

97.

Printer having L-shaped maintenance modules for plurality of printheads

      
Application Number 15583006
Grant Number 10076917
Status In Force
Filing Date 2017-05-01
First Publication Date 2017-11-02
Grant Date 2018-09-18
Owner MEMJET TECHNOLOGY LTD. (Ireland)
Inventor
  • Profaca, Mark
  • Burke, David
  • Sy, Billy
  • Alemana, Gilbert
  • Hibbard, Christopher
  • Balala, Rommel

Abstract

A printer including: a print module having a printhead for printing onto media fed along a media feed path and a maintenance module for maintaining the printhead. The maintenance module includes an L-shaped frame having a longer arm extending parallel with a longitudinal axis of the printhead and a shorter arm. The longer arm includes a capper for capping the printhead and the shorter arm includes a wiper for longitudinally wiping the printhead.

IPC Classes  ?

  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/175 - Ink supply systems
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 25/00 - Actions or mechanisms not otherwise provided for

98.

Print module for modular printer having replaceable printhead cartridges

      
Application Number 15583020
Grant Number 10081204
Status In Force
Filing Date 2017-05-01
First Publication Date 2017-11-02
Grant Date 2018-09-25
Owner Memjet Technology Ltd. (Ireland)
Inventor
  • Profaca, Mark
  • Burke, David
  • Sy, Billy
  • Alemana, Gilbert
  • Hibbard, Christopher
  • Balala, Rommel

Abstract

A print module including a printhead cartridge releasably engaged with a supply module The supply module includes a body housing electronic circuitry for supplying power and data to a printhead of the printhead cartridge; and an ink inlet module and an ink outlet module flanking the body at opposite sides thereof. Each of the ink inlet and ink outlet modules having a respective ink coupling engaged with complementary inlet and outlet couplings of the printhead cartridge.

IPC Classes  ?

  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/175 - Ink supply systems
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 25/00 - Actions or mechanisms not otherwise provided for

99.

Print module with air cooling arrangement

      
Application Number 15583031
Grant Number 10005299
Status In Force
Filing Date 2017-05-01
First Publication Date 2017-11-02
Grant Date 2018-06-26
Owner Memjet Technology Limited (Ireland)
Inventor
  • Profaca, Mark
  • Burke, David
  • Sy, Billy
  • Alemana, Gilbert
  • Hibbard, Christopher
  • Balala, Rommel

Abstract

A print module includes: a body housing first and second opposed printed circuit boards (PCBs), each of the first and second PCBs having heat-generating electronic components; an air inlet and an air outlet positioned towards an upper part of the body; an air pathway extending between the air inlet and the air outlet; a plurality of heatsinks, each heatsink being thermally coupled with one of the heat-generating components and having an array of cooling fins extending into the air pathway; and an inkjet printhead receiving power and print data from at least one of the first and second PCBs. The inkjet printhead is positioned toward a lower part of the print module.

IPC Classes  ?

  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/175 - Ink supply systems
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 25/00 - Actions or mechanisms not otherwise provided for

100.

Printhead capping system and drain shaft arrangement

      
Application Number 15583049
Grant Number 10124616
Status In Force
Filing Date 2017-05-01
First Publication Date 2017-11-02
Grant Date 2018-11-13
Owner MEMJET TECHNOLOGY LTD. (Ireland)
Inventor
  • Profaca, Mark
  • Burke, David
  • Sy, Billy
  • Alemana, Gilbert
  • Hibbard, Christopher
  • Balala, Rommel

Abstract

A printhead capping system includes: a mounting bracket having a fixed shaft; a cap assembly mounted on the mounting bracket; and an arm hingedly connected to the shaft, the arm moving the cap assembly between a capping position and a printing position. The shaft is a drain shaft for receiving fluid drained from the cap assembly.

IPC Classes  ?

  • B41J 25/304 - Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
  • B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
  • B41J 29/377 - Cooling or ventilating arrangements
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
  • B41J 2/175 - Ink supply systems
  • B41J 25/34 - Bodily-changeable print heads or carriages
  • B41J 2/155 - Arrangement thereof for line printing
  • B41J 25/00 - Actions or mechanisms not otherwise provided for
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