HP Indigo B.V.

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IPC Class
G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer 94
G03G 15/00 - Apparatus for electrographic processes using a charge pattern 62
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern 48
G03G 9/13 - Developers with toner particles in liquid developer mixtures characterised by polymer components 37
G03G 9/12 - Developers with toner particles in liquid developer mixtures 35
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1.

SCRATCH-OFF STRUCTURE PRODUCTION

      
Application Number 18541767
Status Pending
Filing Date 2023-12-15
First Publication Date 2024-04-11
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Atzmon, Yavin
  • Tzomik, Inna

Abstract

In one example of the disclosure, a substantially transparent substrate is provided at a printer. A primer layer is applied upon a first surface of the substrate. A security ink layer that includes security information is applied upon the primer layer. An opaque background ink layer is applied upon the security ink layer. A corona treatment is applied to a second surface, located on an opposite side of the substrate relative to the first surface. A release ink layer is applied upon the corona-treated second surface. An opaque cover image ink layer is applied upon the release ink layer.

IPC Classes  ?

  • B41M 3/00 - Printing processes to produce particular kinds of printed work, e.g. patterns

2.

LIQUID ELECTROPHOTOGRAPHY PRINTING ON FABRICS

      
Application Number 17935795
Status Pending
Filing Date 2022-09-27
First Publication Date 2023-01-19
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Desai, Harsh Pranav
  • Korol, Evgeny
  • Halpern, Avinoam

Abstract

A liquid electrophotographic (LEP) printing device that includes a photo-imaging plate (PIP) to receive a liquid printing fluid, the liquid printing fluid including a pigment incorporated into a resin, a charge conductor, and a carrier liquid, and a transfer roller to transfer the liquid printing fluid from the PIP to a fabric substrate while wet.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • B41F 16/02 - Transfer printing apparatus for textile material
  • B41F 17/00 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
  • B41F 17/38 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on knitted fabrics
  • G03G 9/125 - Developers with toner particles in liquid developer mixtures characterised by the liquid
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

3.

VACUUM TABLES

      
Application Number 17405666
Status Pending
Filing Date 2021-08-18
First Publication Date 2021-12-09
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Hartstein, Yonni
  • Yahav, Yaron

Abstract

There is disclosed a vacuum table 400 comprising a vacuum plate 402 separating a first vacuum chamber 406 from a substrate zone 60 for receiving a substrate 50. The vacuum plate has a plurality of suction holes 404 for conveying a gas flow from the substrate zone 60 to the first vacuum chamber 406. There is an evacuation port 422 in communication with a second vacuum chamber 420 to evacuate gas from the substrate zone 60 when a substrate 50 is received over the suction holes 404 of the vacuum plate 402, and a vacuum port 424 for discharging gas received in the second vacuum chamber 420 to a vacuum source 423. The first vacuum chamber 406 and the second vacuum chamber 420 are in fluid communication via a valve 430 so that gas flows from the first vacuum chamber 406 to the vacuum port 424 via the second vacuum chamber 420. The valve 430 is controllable to vary a gas flow rate through the vacuum plate 402 and thereby vary a retaining force on a substrate 50 received thereon.

IPC Classes  ?

  • B25B 11/00 - Work holders or positioners not covered by groups , e.g. magnetic work holders, vacuum work holders
  • B41F 21/06 - Suction-operated grippers

4.

Applying force to print agent

      
Application Number 16606309
Grant Number 11385572
Status In Force
Filing Date 2017-09-21
First Publication Date 2021-11-25
Grant Date 2022-07-12
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Berger, Shachar
  • Froom, Alon
  • Shanun, Sagie
  • Levintant, Oran

Abstract

A print agent application assembly includes a print agent transfer roller to receive print agent and transfer a portion of the print agent to a photoconductive surface. The assembly may also include a print agent regulator roller to regulate a film thickness of print agent on the print agent transfer roller. The assembly may also include a mechanism to generate an oscillating force to be applied to print agent on the print agent transfer roller. A method and a print apparatus are also disclosed.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

5.

Halftone screens comprising cluster patterns having different centre positions

      
Application Number 16632897
Grant Number 11381708
Status In Force
Filing Date 2017-10-20
First Publication Date 2021-11-25
Grant Date 2022-07-05
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Frank, Tal
  • Haik, Oren
  • Ben-Shoshan, Yotam
  • Bornstein, Shay

Abstract

In an example, a method includes determining, using a processor, a first halftone screen comprising a plurality of cells. Each of the cells may contain a predetermined pixel cluster pattern, and a centre position of a cluster pattern within a first cell may be different to a centre position of a cluster pattern within a second cell.

IPC Classes  ?

  • H04N 1/46 - Colour picture communication systems
  • H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

6.

Material displacement

      
Application Number 17376860
Grant Number 11712752
Status In Force
Filing Date 2021-07-15
First Publication Date 2021-11-04
Grant Date 2023-08-01
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Tagansky, Boaz
  • Fisher, Gil
  • Plotkin, Michael
  • Sandler, Mark
  • Teishev, Albert

Abstract

According to some examples in the disclosure, a method may comprise providing a first stream of discrete volumes of material; and directing a pulsed laser beam at a first discrete volume of material in the first stream of discrete volumes of material so as to interact with the first discrete volume of material and thereby displace the first discrete volume away from the first stream. An apparatus and a system are also disclosed.

IPC Classes  ?

  • B23K 26/146 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor the fluid stream containing a liquid
  • 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 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • B41J 2/09 - Deflection means
  • B41J 2/44 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source, e.g. lighting beams or shutter arrangements
  • B22F 10/22 - Direct deposition of molten metal
  • B22F 12/43 - Radiation means characterised by the type, e.g. laser or electron beam frequency modulated
  • B22F 12/44 - Radiation means characterised by the configuration of the radiation means
  • B22F 10/36 - Process control of energy beam parameters
  • B22F 10/73 - Recycling of powder
  • B22F 12/41 - Radiation means characterised by the type, e.g. laser or electron beam

7.

Print agent application assembly cleaning tools

      
Application Number 16495321
Grant Number 11307526
Status In Force
Filing Date 2017-04-06
First Publication Date 2021-10-21
Grant Date 2022-04-19
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Sabo, David
  • Rosenstein, Barak
  • Ben-Basat, Ilan
  • Katz, Roman

Abstract

A print agent application assembly cleaning tool is disclosed. The print agent application assembly cleaning tool may include a handle and a flexible blade. The flexible blade may be inserted into a gap between a pair of electrodes of a print agent application assembly. The blade may protrude from a distal end of the handle in a lengthwise direction. The blade may have a width that varies to define a curved profile. The width may reduce and subsequently increase along a length of the blade so as to define a recess in an edge of the blade.

IPC Classes  ?

  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

8.

Print operations comprising user specified printing tasks and cleaning operations

      
Application Number 16332442
Grant Number 11480911
Status In Force
Filing Date 2016-10-06
First Publication Date 2021-09-16
Grant Date 2022-10-25
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Portnoy, Vitaly
  • Assenheimer, Michel
  • Nachmias, Yoav

Abstract

In an example, a method includes receiving, by at least one processor, an instruction to print a user specified printing task to at least one media sheet. Print operation instructions may be determined. Such print operation instructions may comprise instructions to control a print apparatus to print the user specified printing task and instructions to control a print apparatus to carry out at least one cleaning operation, wherein the cleaning operation comprises duplex printing a print media sheet.

IPC Classes  ?

  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
  • G03G 15/23 - Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material

9.

Controlling scan-to-scan spacing between print operations

      
Application Number 16332460
Grant Number 11372344
Status In Force
Filing Date 2016-10-10
First Publication Date 2021-09-16
Grant Date 2022-06-28
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Ambar, Oron
  • Shalmai, Vladimir
  • Vladomirski, Haim

Abstract

In an example, a method includes determining a first scaling to be applied to a first print operation and a second scaling to be applied to a second print operation. Each print operation includes selectively removing charge from a charged photoconductor by irradiating the photoconductor in a plurality of scans, forming a first print agent pattern on the photoconductor and delivering the first print agent pattern to a substrate. If the first and second scalings are different, a control instruction may be determined to change the scan-to-scan spacing between the first and second print operations.

IPC Classes  ?

  • G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
  • G02B 26/12 - Scanning systems using multifaceted mirrors
  • G03G 15/043 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
  • G02B 26/10 - Scanning systems

10.

Liquid electrophotography printing on fabrics

      
Application Number 16605104
Grant Number 11487225
Status In Force
Filing Date 2017-10-13
First Publication Date 2021-09-09
Grant Date 2022-11-01
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Desai, Harsh Pranav
  • Korol, Evgeny
  • Halpern, Avinoam

Abstract

A liquid electrophotographic (LEP) printing device that includes a photo-imaging plate (PIP) to receive a liquid printing fluid, the liquid printing fluid including a pigment incorporated into a resin, a charge conductor, and a carrier liquid, and a transfer roller to transfer the liquid printing fluid from the PIP to a fabric substrate while wet.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • B41F 16/02 - Transfer printing apparatus for textile material
  • B41F 17/00 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
  • B41F 17/38 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on knitted fabrics
  • G03G 9/125 - Developers with toner particles in liquid developer mixtures characterised by the liquid
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

11.

Cleaning a liquid electrophotographic printer

      
Application Number 16606211
Grant Number 11249435
Status In Force
Filing Date 2017-10-19
First Publication Date 2021-09-09
Grant Date 2022-02-15
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Chertov, Igor
  • Schlumm, Doron
  • Zucker, Shaul

Abstract

An example cleaning station for a liquid electrophotographic printer is described. The cleaning station has a first cleaning member, a second cleaning member, and a biasing member. The cleaning station is configured to move between a first position and a second position with respect to a photo imaging member of the printer. In the first position, the first cleaning member is arranged to remove particles from the photo imaging member of the printer and the second cleaning member is arranged to apply a force to a layer of liquid applied to the photo imaging member. In the second position, the biasing member is configured to cause the second cleaning member to contact the first cleaning member to clean the second cleaning member.

IPC Classes  ?

  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
  • G03G 13/11 - Removing excess liquid developer, e.g. by heat
  • G03G 15/11 - Removing excess liquid developer e.g. by heat
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

12.

Stitching frames into which image has been subdivided along length of image

      
Application Number 16332444
Grant Number 11301178
Status In Force
Filing Date 2016-09-16
First Publication Date 2021-09-09
Grant Date 2022-04-12
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Shaham, Noam
  • Dagan, Ram

Abstract

A method is described in which a length of an image is compared with a threshold associated to a print device. The image is subdivided into a sequence of print frames. Each print frame has length equal to or less than the threshold. A stitching operation is performed on at least two consecutive print Compare a length of an image with a threshold frames. The print device is controlled to sequentially print the at least two stitched consecutive print frames.

IPC Classes  ?

13.

Correcting reflectance output values

      
Application Number 16334495
Grant Number 11378455
Status In Force
Filing Date 2016-10-11
First Publication Date 2021-09-09
Grant Date 2022-07-05
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Guttman, Nir
  • Berkovich, Ziv
  • Uner, Gil Arie

Abstract

In an example of the disclosure, a device (38) includes: an acquiring unit to obtain first reflectance output values acquired from reference samples (52) by a reference color measuring device and to obtain second reflectance output values acquired from the reference samples (52) by a second color measuring device (2); a processing unit to determine, for a plurality of wavelength values, correspondences between a first reflectance output value acquired by the reference color measuring device and a second reflectance output value acquired by the second color measuring device, and to perform, for each wavelength value, an interpolation based on the correspondences to obtain interpolation data; and a correcting unit to correct, based on the interpolation data, third reflectance output values acquired by the second color measuring device (2) from a sample of interest (12).

IPC Classes  ?

  • G01J 3/46 - Measurement of colour; Colour measuring devices, e.g. colorimeters
  • G01J 3/28 - Investigating the spectrum
  • G01J 3/50 - Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors

14.

Monitoring circuitry

      
Application Number 17238674
Grant Number 11686752
Status In Force
Filing Date 2021-04-23
First Publication Date 2021-08-26
Grant Date 2023-06-27
Owner HP INDIGO B.V. (Netherlands)
Inventor Amir, Gideon

Abstract

In an example, monitoring circuitry includes a first and a second coupling to electrically connect the monitoring circuitry to a monitored circuit having a resistance. The resistance of the monitored circuit may be indicative of a status, and the monitored circuit may be connected in series between the first and second coupling. The first coupling comprises a plurality of galvanically separated connection elements which are to form an electrical connection with a common connection element of the monitored circuit. The monitoring circuitry further comprises a monitoring apparatus to determine the resistance of the monitored circuit via the first coupling and the second coupling. The monitoring apparatus is to acquire a plurality of electrical values and to use the plurality of electrical values to determine a value of the resistance of the monitored circuit.

IPC Classes  ?

  • G01R 27/20 - Measuring earth resistance; Measuring contact resistance of earth connections, e.g. plates
  • A61J 1/03 - Containers specially adapted for medical or pharmaceutical purposes for pills or tablets
  • A61J 7/04 - Arrangements for time indication or reminder for taking medicine, e.g. programmed dispensers
  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • G01R 31/52 - Testing for short-circuits, leakage current or ground faults
  • G01R 31/54 - Testing for continuity
  • G16Z 99/00 - Subject matter not provided for in other main groups of this subclass

15.

Apparatus for use in an electrographic printer

      
Application Number 17230328
Grant Number 11402771
Status In Force
Filing Date 2021-04-14
First Publication Date 2021-08-05
Grant Date 2022-08-02
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Berger, Shachar
  • Borenstain, Shmuel
  • Guslitzer, Regina
  • Katz, Gregory

Abstract

In one aspect an apparatus for use in an electrographic printer is described. The apparatus includes a housing defining a cavity, a developer roller, a developer electrode for developing printing substance onto the developer roller, the electrode being arranged within the cavity, and a heater for heating printing substance to be developed onto the developer roller, the heater being arranged in the cavity.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/06 - Apparatus for electrographic processes using a charge pattern for developing
  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

16.

Adjusting power levels to compensate for print spot size variation

      
Application Number 16633834
Grant Number 11169463
Status In Force
Filing Date 2017-08-25
First Publication Date 2021-05-20
Grant Date 2021-11-09
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Ambar, Oron
  • Nesher, Guy
  • Vladomirski, Haim
  • Frank, Tal
  • Breen, Craig
  • Yunger, Yuval

Abstract

In an example, a method includes determining an indication of pixel separation for an image region to be printed to a substrate. A power level of a laser light source to address a pixel on a region of a photoconductive surface corresponding to the image region may be adjusted based on the indication of pixel separation to compensate for print spot size variation associated with pixel separation.

IPC Classes  ?

  • G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
  • G03G 15/043 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

17.

Scratch-off structure production

      
Application Number 17153113
Grant Number 11878541
Status In Force
Filing Date 2021-01-20
First Publication Date 2021-05-13
Grant Date 2024-01-23
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Atzmon, Yavin
  • Tzomik, Inna

Abstract

In one example of the disclosure, a substantially transparent substrate is provided at a printer. A primer layer is applied upon a first surface of the substrate. A security ink layer that includes security information is applied upon the primer layer. An opaque background ink layer is applied upon the security ink layer. A corona treatment is applied to a second surface, located on an opposite side of the substrate relative to the first surface. A release ink layer is applied upon the corona-treated second surface. An opaque cover image ink layer is applied upon the release ink layer.

IPC Classes  ?

  • B41M 3/00 - Printing processes to produce particular kinds of printed work, e.g. patterns
  • A63F 3/06 - Lottos or bingo games; Systems, apparatus or devices for checking such games
  • B42D 15/02 - Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets

18.

Cleaning elements for print apparatus

      
Application Number 16605095
Grant Number 11433663
Status In Force
Filing Date 2017-09-14
First Publication Date 2021-05-06
Grant Date 2022-09-06
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Cohen, Lavi
  • Macias Guzman, Minedys
  • Vinokur, Michael

Abstract

In an example, a method includes rotating a print apparatus component to be cleaned about a first rotational axis. A cleaning element having a cleaning surface in contact with the print apparatus component may be driven such that the cleaning surface has a component of motion which is parallel to the first rotational axis in a contact region. A relative velocity of the cleaning element and the print apparatus component may be varied during a cleaning operation.

IPC Classes  ?

  • B41F 35/02 - Cleaning arrangements or devices for forme cylinders
  • B41F 35/00 - Cleaning arrangements or devices
  • B41F 35/04 - Cleaning arrangements or devices for inking rollers

19.

Flow structure for an ink supply in a liquid electrophotographic developer unit

      
Application Number 16605745
Grant Number 11119427
Status In Force
Filing Date 2017-04-25
First Publication Date 2021-04-29
Grant Date 2021-09-14
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Berger, Shachar
  • Yosef, Ziv
  • Shanun, Sagie

Abstract

In one example, a flow structure for an ink supply in a liquid electrophotographic developer unit includes an elongated basin having a volume that shrinks progressively from an upstream part of the basin to a downstream part of the basin such that a rate of shrinkage increases towards the downstream part.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

20.

Electrophotographic ink composition including copolymer of olefin and (meth) acrylic acid and charge adjuvant

      
Application Number 16497150
Grant Number 11281121
Status In Force
Filing Date 2017-10-12
First Publication Date 2021-04-29
Grant Date 2022-03-22
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Biadglin, Getahun
  • Grinwald, Yaron
  • Masoud, Emad
  • Avigdor, Reut
  • Bar-Haim, Gil

Abstract

In one aspect, the present disclosure relates to a liquid electrophotographic electrode ink composition comprising: a thermoplastic polymer comprising a copolymer of an olefin and acrylic acid and/or methacrylic acid; an electroactive material comprising a lithium intercalation material; a charge adjuvant, and a liquid carrier.

IPC Classes  ?

  • G03G 9/13 - Developers with toner particles in liquid developer mixtures characterised by polymer components
  • C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
  • 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 11/52 - Electrically conductive inks
  • G03G 9/135 - Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
  • H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
  • H01M 10/058 - Construction or manufacture

21.

Printed rigid plastic substrates

      
Application Number 16603468
Grant Number 11485127
Status In Force
Filing Date 2017-07-10
First Publication Date 2021-04-15
Grant Date 2022-11-01
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Or-Chen, Dafna
  • Nadav, Keren
  • Tulchinski, Dani

Abstract

A process for preparing a printed rigid plastic substrate is described, the process comprising: providing a rigid plastic substrate comprising a primer on a surface of the rigid plastic substrate, the primer comprising a primer resin; printing a liquid electrophotographic ink composition comprising a thermoplastic resin onto the primer on the surface of the rigid plastic substrate; depositing a cross-linking composition comprising a cross-linker onto the printed electrophotographic ink composition disposed on the primer; and laminating the rigid plastic substrate with a flexible film such that the ink composition and the cross-linker are disposed between the rigid substrate and the flexible film and wherein the lamination of the rigid substrate with the flexible film causes cross-linking of the thermoplastic resin of the ink composition and of the primer resin.

IPC Classes  ?

  • B32B 38/00 - Ancillary operations in connection with laminating processes
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
  • C09J 5/00 - Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
  • B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
  • B41M 7/00 - After-treatment of printed works, e.g. heating, irradiating
  • B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
  • G03G 11/00 - Selection of substances for use as fixing agents
  • G03G 8/00 - Layers covering the final reproduction, e.g. for protecting, for writing thereon
  • G03G 13/10 - Developing using a liquid developer
  • G03G 13/20 - Fixing, e.g. by using heat
  • G03G 9/12 - Developers with toner particles in liquid developer mixtures
  • G03G 9/13 - Developers with toner particles in liquid developer mixtures characterised by polymer components
  • B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
  • G03G 7/00 - Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof

22.

Rotogravure printing

      
Application Number 16618838
Grant Number 11712883
Status In Force
Filing Date 2017-07-14
First Publication Date 2021-04-15
Grant Date 2023-08-01
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Joseph, Lior
  • Jekobson, Regev
  • Kopel, Erez

Abstract

In an example, a rotogravure printer roller is described. The printer roller (300) comprises a contact surface formed from a plurality of adjacent roller sections (302, 304). The roller sections are constructed and arranged to be removably assembled to form the roller.

IPC Classes  ?

  • B41F 3/36 - Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed of special construction or for particular purposes for intaglio or heliogravure printing
  • B41F 9/06 - Rotary intaglio printing presses - Details
  • B41F 13/11 - Gravure cylinders
  • B41M 1/10 - Intaglio printing

23.

Y-shaped brushes

      
Application Number 16603799
Grant Number 11150571
Status In Force
Filing Date 2017-04-18
First Publication Date 2021-03-25
Grant Date 2021-10-19
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Butler, Blair A.
  • Sayer, Scott
  • Yosef, Ziv
  • Sabo, David

Abstract

A roller charging device may include a Y-shaped electrically conductive brush and a screw terminal coupling the Y-shaped electrically conductive brush to a housing of the roller charging device and electrically coupling the Y-shaped electrically conductive brush to a power source. A printing fluid developer may include a plurality of rollers and a plurality of Y-shaped brushes to each contact one of the plurality of rollers wherein each of the Y-shaped brushes provides an electrical charge to each of the plurality of rollers.

IPC Classes  ?

  • G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices

24.

Liquid electrostatic ink composition

      
Application Number 16603715
Grant Number 11442373
Status In Force
Filing Date 2017-07-10
First Publication Date 2021-03-25
Grant Date 2022-09-13
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Marom Tchaicheeyan, Hanit
  • Teishev, Albert
  • Shutyi, Igor
  • Kowal-Blau, Yael
  • Schneider, Matan

Abstract

An electrostatic ink composition comprising a carrier liquid; a first resin comprising a copolymer of an alkylene monomer and a methacrylic acid monomer; and a second resin comprising a copolymer of an alkylene monomer and an acrylic acid monomer, wherein the second resin constitutes at least 35 wt. % of the total amount of resin is disclosed.

IPC Classes  ?

  • G03G 9/13 - Developers with toner particles in liquid developer mixtures characterised by polymer components
  • 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

25.

Printing liquids concentration

      
Application Number 16952995
Grant Number 11474455
Status In Force
Filing Date 2020-11-19
First Publication Date 2021-03-11
Grant Date 2022-10-18
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Nedelin, Peter
  • Lior, Shai
  • Sandler, Mark

Abstract

An example system includes a conveyor. The conveyor is not a photoconductor. The system also includes a developer unit. The developer unit is to internally concentrate printing liquid. The developer unit also is to deliver the printing liquid to the conveyor. The system includes a wiper in contact with the conveyor. The wiper is to remove the printing liquid from the conveyor.

IPC Classes  ?

  • G03G 15/11 - Removing excess liquid developer e.g. by heat

26.

Online surface resistance measuring of primed substrates to evaluate drying state

      
Application Number 16951159
Grant Number 11525795
Status In Force
Filing Date 2020-11-18
First Publication Date 2021-03-11
Grant Date 2022-12-13
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Schneider, Matan
  • Shoshani, Eli
  • Orlik, Fernanda

Abstract

Apparatus and methods are provided for measuring the dryness of primer on a substrate in an inline priming system. In implementations, the apparatus comprises a plurality of measurement electrodes spaced laterally to extend across and contact a primed surface of a substrate following application of a primer to the substrate as it is fed through the inline priming system. A resistance measurement unit is provided as part of the dryness measuring apparatus to, in use, measure the surface resistance of the primed substrate between different measurement electrodes across the primed surface of a substrate. A controller is provided in the dryness measurement apparatus, the controller arranged to, in use: receive the measured surface resistance value and to generate, based on the measured surface resistance values, a dryness profile indicative of the dryness of the primer at locations across the substrate in the direction of the spacing of the electrodes.

IPC Classes  ?

  • G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

27.

Transferring print agent to cleanable medium

      
Application Number 17083065
Grant Number 11334004
Status In Force
Filing Date 2020-10-28
First Publication Date 2021-02-11
Grant Date 2022-05-17
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Bachar, Eyal
  • Gorgani, Ido
  • Cusiner, Kostin
  • Avigdor, Reut

Abstract

In an example, a method includes forming a print agent pattern on an image forming surface and transferring the print agent pattern from the image forming surface to an intermediate transfer member. In a first mode of operation in which a printable substrate is not between the intermediate transfer member and a cleanable medium, the print agent pattern may be transferred from the intermediate transfer member to the cleanable medium and then cleaned from the cleanable medium. In a second mode of operation, the printable substrate may be provided between the intermediate transfer member and the cleanable medium, and the same print agent pattern or a different print agent pattern may be transferred from the intermediate transfer member to the printable substrate.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

28.

Blanket memory artifact reduction

      
Application Number 17066064
Grant Number 11409211
Status In Force
Filing Date 2020-10-08
First Publication Date 2021-01-28
Grant Date 2022-08-09
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Nedelin, Peter
  • Sandler, Mark
  • Lior, Shai

Abstract

In one example of the disclosure, a first transfer of ink is made from a photoconductor to a blanket in contact with the photoconductor. The blanket is to cycle along a path. The first transfer occurs at a first arc of the blanket path. A second transfer of the ink is made from the blanket to a media in contact with the blanket. The second transfer occurs at a second arc of the blanket path. A heat source located adjacent to a third arc of the blanket path is utilized to heat an external surface of the blanket. The heating is to occur following the second transfer of the ink.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

29.

Dividing a spanning region of adjacent sub-images to generate print data

      
Application Number 17062062
Grant Number 11163504
Status In Force
Filing Date 2020-10-02
First Publication Date 2021-01-21
Grant Date 2021-11-02
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Fineberg, Zelidor
  • Velner, Eli
  • Shaham, Noam
  • Haik, Oren

Abstract

In some examples, a system selects a spanning region of an image spanning an intersection between adjacent sub-images that partition the image. The spanning region is divided based on a non-linear path that is determined on the basis of a user input, resulting in respective modified adjacent sub-images. Print data to cause a printing device to print the respective modified adjacent sub-images is generated on the basis of the dividing.

IPC Classes  ?

30.

Labels

      
Application Number 16476201
Grant Number 11326067
Status In Force
Filing Date 2017-04-19
First Publication Date 2021-01-14
Grant Date 2022-05-10
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Tzomik, Inna
  • Skvirsky, Daniel
  • Kogan, Faina
  • Stolov, Alexander

Abstract

Herein is described a method of providing a printed label. The method comprises: providing a printed label substrate having disposed thereon an electrostatically printed ink; applying a radiation curable overcoat composition to the printed ink, wherein the radiation curable overcoat composition comprises: radiation curable monomers and/or oligomers; a photoinitiator; and an organosilane having at least one hydrolysable group. Printed labels and an ink and overcoat set are also described herein.

IPC Classes  ?

  • C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
  • G03G 9/135 - Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
  • G03G 9/087 - Binders for toner particles

31.

Determining defects having a characteristic separation distance

      
Application Number 17032472
Grant Number 11323574
Status In Force
Filing Date 2020-09-25
First Publication Date 2021-01-14
Grant Date 2022-05-03
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Haik, Oren
  • Perry, Oded
  • Malki, Avi

Abstract

A first separation distance is determined between a first pair of defects in a scanned image of a first printed sheet, and a second separation distance is determined between a second pair of defects in a scanned image of a second printed sheet. The defects are determined as having a separation distance in that the first and second separation distances are each within a first threshold of a specified separation distance and/or a difference between the first and second separation distances is below a second threshold. A source of the defects can be determined based on the characteristic separation distance.

IPC Classes  ?

  • H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof

32.

Ink dosing

      
Application Number 16607188
Grant Number 10976688
Status In Force
Filing Date 2017-09-06
First Publication Date 2020-12-10
Grant Date 2021-04-13
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Nir, Jonathan
  • Shachak, Yossi

Abstract

In one example of the disclosure, a first measurement of actual quantity of ink in a target cartridge is taken utilizing a scale. An incremental dosage quantity be deposited into the target cartridge in a dosing pass is determined based upon a desired quantity, the actual quantity, and an undershoot safety factor. A valve is opened to enable a pressure deposit of the incremental dosage quantity of ink to the target cartridge, and then closed. A residue cutter is utilized to scrape the valve and thereby make a scraper deposit of ink to the target cartridge. A second measurement of actual quantity of ink in the target cartridge is taken utilizing the scale. An additional dosage pass is performed if the second measurement is not within an accepted variance of the desired quantity. The making of dosing passes is discontinued if the second measurement is within the accepted variance.

IPC Classes  ?

  • B41J 2/175 - Ink supply systems
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • B41J 2/21 - Ink jet for multi-colour printing

33.

Carrier evaporators for liquid electrophotography printing

      
Application Number 16607008
Grant Number 11022913
Status In Force
Filing Date 2017-05-04
First Publication Date 2020-12-10
Grant Date 2021-06-01
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Sandler, Mark
  • Nedelin, Peter

Abstract

Aspects presented herein are directed towards a carrier evaporator for a Liquid Electrophotography Printing (LEP) system. In an example, the carrier evaporator provides a hot air supply to absorb an evaporated carrier liquid resulting in first air flow comprising a carrier vapour, an evacuator to evacuate at least a portion of the carrier vapour, a heat exchanger to decrease a temperature of the remaining carrier vapour thereby transforming the first air flow to a second airflow comprising carrier particles, and a filter to remove the carrier particles from the second air flow.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/11 - Removing excess liquid developer e.g. by heat
  • G03G 21/20 - Humidity or temperature control

34.

Electrical discharge surface treatment

      
Application Number 16939562
Grant Number 11378900
Status In Force
Filing Date 2020-07-27
First Publication Date 2020-11-12
Grant Date 2022-07-05
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Libster, Dima
  • Inotaev, Sergey
  • Slivniak, Raia
  • Shiran, Eran
  • Finkelman, Ido

Abstract

A transfer surface of an intermediate transfer member in a printing apparatus is treated using an electrical discharge surface treatment. The treatment of the intermediate transfer member is to reduce negative dot gain from a previous image in subsequent printing or increase wettability of a silicone-based release layer.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

35.

Layer thickness in print agent concentration apparatus

      
Application Number 16924866
Grant Number 10990039
Status In Force
Filing Date 2020-07-09
First Publication Date 2020-10-29
Grant Date 2021-04-27
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Dayan, Benjamin
  • Cohen, Ezra
  • Klein, Marc

Abstract

In an example, a method includes providing a print agent with chargeable particles in a carrier fluid to a print agent concentration apparatus. The print agent may be passed between a conveyor and an electrode, and a potential applied to cause the chargeable particles to be attracted to the conveyor and to form a concentrated layer of particles on the conveyor. An indicator of particle concentration in the concentrated layer may be measured. It may be determined if the indicator of particle concentration meets predetermined criteria.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

36.

Carrier fluid addition during non-print cycles

      
Application Number 16919428
Grant Number 11086253
Status In Force
Filing Date 2020-07-02
First Publication Date 2020-10-22
Grant Date 2021-08-10
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Anufa, Asaf
  • Bitan, Ronen
  • Schlumm, Doron
  • Borenstain, Shmuel

Abstract

During a print cycle of a print apparatus, a liquid print agent including a carrier fluid is applied to a photoconductive surface. A proportion of the carrier fluid in the liquid print agent on the photoconductive surface is reduced at a first location by removably collecting a portion of the carrier fluid from the liquid print agent applied to the photoconductive surface. During a non-print cycle of the print apparatus, the removably collected portion of the carrier fluid is added to the photoconductive surface at the first location.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
  • G03G 15/11 - Removing excess liquid developer e.g. by heat

37.

Determining thickness of a layer of wet printing fluid

      
Application Number 16886434
Grant Number 11448989
Status In Force
Filing Date 2020-05-28
First Publication Date 2020-09-17
Grant Date 2022-09-20
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Schneider, Matan
  • Orlik, Fernanda

Abstract

A printing apparatus is described in which a guide member biases a printing substrate with a layer of printing fluid toward an electrode array with a plurality of electrodes. Processing circuitry determines a dryness of the layer of printing fluid based on an output of the electrode array when the plurality of electrodes is in electrical contact with the printing substrate.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

38.

Monitoring circuitry

      
Application Number 16870091
Grant Number 11240913
Status In Force
Filing Date 2020-05-08
First Publication Date 2020-08-20
Grant Date 2022-02-01
Owner HP Indigo B.V. (Netherlands)
Inventor Amir, Gideon

Abstract

In an example, monitoring circuitry includes a first and second coupling, at least one of which is to capacitively couple the monitoring circuitry to a monitored circuit on a product packaging. The monitored circuit has a resistance which is indicative of a status of a product stored in the product packaging, and the monitored circuit is to be connected in series between the first coupling and the second coupling. The monitoring apparatus may determine the resistance of the monitored circuit via the first and second couplings.

IPC Classes  ?

  • H05K 1/09 - Use of materials for the metallic pattern
  • H05K 1/02 - Printed circuits - Details
  • A61J 1/03 - Containers specially adapted for medical or pharmaceutical purposes for pills or tablets
  • H05K 1/03 - Use of materials for the substrate
  • H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
  • A61J 7/04 - Arrangements for time indication or reminder for taking medicine, e.g. programmed dispensers
  • G01R 27/26 - Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants
  • G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
  • H05K 3/28 - Applying non-metallic protective coatings

39.

Scratch-off structure production

      
Application Number 16606218
Grant Number 10906340
Status In Force
Filing Date 2017-09-26
First Publication Date 2020-08-20
Grant Date 2021-02-02
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Atzmon, Yavin
  • Tzomik, Inna

Abstract

In one example of the disclosure, a substantially transparent substrate is provided at a printer. A primer layer is applied upon a first surface of the substrate. A security ink layer that includes security information is applied upon the primer layer. An opaque background ink layer is applied upon the security ink layer. A corona treatment is applied to a second surface, located on an opposite side of the substrate relative to the first surface. A release ink layer is applied upon the corona-treated second surface. An opaque cover image ink layer is applied upon the release ink layer.

IPC Classes  ?

  • B41M 3/00 - Printing processes to produce particular kinds of printed work, e.g. patterns
  • A63F 3/06 - Lottos or bingo games; Systems, apparatus or devices for checking such games
  • B42D 15/02 - Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets

40.

Curved ink gutter sloped towards an ink outlet in a wall

      
Application Number 16606215
Grant Number 10983460
Status In Force
Filing Date 2017-10-31
First Publication Date 2020-08-13
Grant Date 2021-04-20
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Berger, Shachar
  • Shanun, Sagie
  • Yosef, Ziv
  • Rahamim, Shay

Abstract

In one aspect an apparatus for use in an electrographic printer is described. The apparatus includes a housing having a base, a first wall, and a second wall, wherein the housing defines a cavity. The apparatus also includes a developer roller and an ink developer electrode for developing ink to the developer roller. The apparatus also includes an ink outlet, and a gutter for directing ink in the cavity towards the ink outlet, the gutter being disposed between the first wall and second wall, and between the developer roller and base. The gutter has a floor, a first side, and a second side, each extending along a length of the gutter. The floor slopes towards the ink outlet to direct ink towards the ink outlet, and the floor and sides of the gutter form a curve transverse to the length of the gutter to direct ink towards the floor.

IPC Classes  ?

  • G03G 15/11 - Removing excess liquid developer e.g. by heat
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 21/10 - Collecting or recycling waste developer
  • G03G 21/12 - Toner waste containers

41.

Media alignment

      
Application Number 16603791
Grant Number 11167946
Status In Force
Filing Date 2017-04-21
First Publication Date 2020-08-06
Grant Date 2021-11-09
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Nir, Jonathan
  • Touitou, Haim
  • Mazar, David

Abstract

In one example, a sheet media alignment system includes: a guide (12) defining a curved media path (14) that extends from an upstream part of the guide to a downstream part of the guide; a movable blocker (16, 56) to block the curved media path (14) at the downstream part of the guide, the blocker movable into and out of a blocking position in which the blocker is spaced from the downstream part of the guide a first distance; and a driver (24, 58) upstream from the curved media path to drive a media sheet into the guide along the curved media path and into the blocker. The driver is spaced from the upstream part of the guide a second distance greater than the first distance such that a media sheet driven into the blocker will buckle between the driver and the guide before it will buckle between the guide and the blocker.

IPC Classes  ?

  • B65H 9/00 - Registering, e.g. orientating, articles; Devices therefor
  • B65H 5/06 - Feeding articles separated from piles; Feeding articles to machines by rollers
  • B65H 5/10 - Reciprocating or oscillating grippers
  • B65H 5/38 - Article guides or smoothers, e.g. movable in operation immovable in operation
  • B65H 9/06 - Movable stops or gauges, e.g. rising and falling front stops

42.

Heat source segments aligned with different sizes

      
Application Number 16632591
Grant Number 11243486
Status In Force
Filing Date 2017-10-25
First Publication Date 2020-08-06
Grant Date 2022-02-08
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Wilde, Oren
  • Levchakov, Yury

Abstract

Disclosed is a heat source for radiating heat onto an intermediate printing material transfer element of a printing apparatus. The heat source can include a plurality of heat generating segments disposed along an axis, the plurality of heat generating segments including a first heat generating segment, a second heat generating segment and a third heat generating segment. The second heat generating segment is disposed between the first heat generating segment and the third heat generating segment. The second heat generating segment has a length shorter than a length of the first heat generating segment and shorter than a length of the third heat generating segment. Also disclosed is a printing system that includes the disclosed heat source. Also disclosed is a method of selecting a heat radiating pattern of a heat source.

IPC Classes  ?

  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

43.

Printing sub-images to create complete image

      
Application Number 16632911
Grant Number 11232335
Status In Force
Filing Date 2017-10-16
First Publication Date 2020-07-30
Grant Date 2022-01-25
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Haik, Oren
  • Shaham, Noam
  • Fineberg, Zelidor
  • Velner, Eli

Abstract

In an example, an apparatus comprising an image processor is configured to perform edge detection on the image to detect a plurality of edges, automatically identify a path across the image based on the detected plurality of edges, divide the image into two adjacent sub-images based on the determined path, and generate first and second print data to cause the printing device to print the two adjacent sub-images.

IPC Classes  ?

  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers
  • G06T 7/12 - Edge-based segmentation
  • G06T 7/13 - Edge detection

44.

Printing fluid developer assembly

      
Application Number 16487749
Grant Number 11016419
Status In Force
Filing Date 2017-03-13
First Publication Date 2020-07-30
Grant Date 2021-05-25
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Sabo, David
  • Godden, John W.

Abstract

A binary printing fluid developer assembly may include a developer roller to receive a printing fluid and transfer a portion of the printing fluid to a photoconductive member; a number of electrodes to create an electrical potential bias between the number of electrodes and the developer roller; a cleaner roller to remove an amount of printing fluid from the developer roller; and a sponge roller to clean the cleaner roller wherein a gap is maintained between the sponge roller and the number of electrodes.

IPC Classes  ?

  • G03G 15/11 - Removing excess liquid developer e.g. by heat
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

45.

Apparatus for use in an electrographic printer

      
Application Number 16605293
Grant Number 10990038
Status In Force
Filing Date 2017-10-10
First Publication Date 2020-07-30
Grant Date 2021-04-27
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Berger, Shachar
  • Borenstain, Shmuel
  • Guslitzer, Regina
  • Katz, Gregory

Abstract

In one aspect an apparatus (200) for use in an electrographic printer (100) is described. The apparatus includes a housing (210) defining a cavity (220), a developer roller (250), a developer electrode (240) for developing printing substance onto the developer roller, the electrode being arranged within the cavity, and a heater (260) for heating printing substance to be developed onto the developer roller, the heater being arranged in the cavity.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/06 - Apparatus for electrographic processes using a charge pattern for developing
  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

46.

ITM dent identification utilizing integrated defect maps

      
Application Number 16487731
Grant Number 10890870
Status In Force
Filing Date 2017-03-30
First Publication Date 2020-07-23
Grant Date 2021-01-12
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Perry, Oded
  • Haik, Oren
  • Malki, Avi

Abstract

In one example of the disclosure, a set of scanned images is accessed. The scanned images are scans of distinct printouts of subject images produced utilizing an intermediate transfer member. A set of defect maps is created by comparing the scanned images to reference data for the subject images. The set of defect maps are combined into an integrated defect map. A dent defect on the ITM is identified utilizing the integrated defect map.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G06T 7/00 - Image analysis

47.

Binary ink development unit support stand

      
Application Number 16487759
Grant Number 10877426
Status In Force
Filing Date 2017-03-14
First Publication Date 2020-07-23
Grant Date 2020-12-29
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Rosenstein, Barak
  • Cohen, Tsahi
  • Lugassy, Yehonatan
  • Davidi, Itay

Abstract

An example stand for the support of a Binary Ink Development unit has first and second spaced supports upstanding from a base portion to securely receive a Binary Ink Development unit and also to securely receive a component of a Binary Ink Development unit.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
  • G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge

48.

Liquid electro-photographic printing transfer devices

      
Application Number 16487743
Grant Number 10948853
Status In Force
Filing Date 2017-03-31
First Publication Date 2020-07-23
Grant Date 2021-03-16
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Cohen, Lavi
  • Schlumm, Doron
  • Shoshani, Asaf

Abstract

In an example, charged particles suspended in a non-conductive fluid are fed to a transfer device. A width of a charged particles layer of uniform density on a surface of the transfer device is controlled. Charged particles are transferred from the charged particles layer to a photo imaging plate of a liquid electro-photographic printing system.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices

49.

Spring in a printing fluid developer

      
Application Number 16487754
Grant Number 10928753
Status In Force
Filing Date 2017-03-13
First Publication Date 2020-07-23
Grant Date 2021-02-23
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Sabo, David
  • Godden, John W.
  • Deregules, Alex

Abstract

A printing fluid developer that includes a developer roller; a cleaner roller forming a nip with the developer roller and held by a number of bearings at each end that are free to move within a slot towards and away from the developer roller; and at least one spring biased to force the bearings towards one side of the slot.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/11 - Removing excess liquid developer e.g. by heat

50.

Selective wetting of a roller

      
Application Number 16605205
Grant Number 11638927
Status In Force
Filing Date 2017-09-15
First Publication Date 2020-07-16
Grant Date 2023-05-02
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Lipnizkiy, Alex
  • Arenson, Mordechai
  • Richter, Marko
  • Yaacobov, Yossi
  • Fisher, Gil
  • Vinokur, Michael
  • Shalem, Nadav
  • Talmor, Chen

Abstract

There is disclosed a selective wetting apparatus comprising a roller rotatable about a roller axis and comprising a wettable roller surface; an applicator unit having a lip which extends parallel to the roller axis and is radially spaced apart from the roller surface by a gap, wherein the applicator unit is to convey liquid agent towards the roller so that the liquid agent forms a liquid bridge over the gap to wet a wetted axial portion of the roller surface; and a flow guide to direct a gas flow into a regulated axial portion of the gap to locally prevent formation of a liquid bridge, and thereby prevent wetting of a corresponding axial portion of the roller surface.

IPC Classes  ?

  • B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
  • B41F 31/04 - Ducts, containers, supply or metering devices with duct-blades or like metering devices
  • B41F 31/08 - Ducts, containers, supply or metering devices with ink-ejecting means, e.g. pumps, nozzles
  • B41F 31/18 - Inking arrangements or devices for inking selected parts of printing formes
  • B41F 31/20 - Ink-removing or collecting devices
  • B05D 1/00 - Processes for applying liquids or other fluent materials
  • B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
  • B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases

51.

Method and printer system for determining adjusted output settings

      
Application Number 16632424
Grant Number 10979600
Status In Force
Filing Date 2017-09-05
First Publication Date 2020-07-16
Grant Date 2021-04-13
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Guttman, Nir
  • Braverman, Gregory
  • Ben Yaakov, Dan

Abstract

A method of printing comprises executing an output settings calibration procedure, the procedure comprising: depositing, by one or more printing elements, ink onto a first substrate according to respective output settings. The procedure further comprises measuring, by a sensor, an actual color value of the ink deposited onto the first substrate at each of a plurality of locations. The procedure further comprises determining a difference between the actual color value and a target color value for each of the plurality of locations and determining adjusted respective output settings for each of the plurality of locations based on the determined difference. The method further comprises depositing, by the one or more printing elements, ink onto a second substrate according to the adjusted respective output settings.

IPC Classes  ?

52.

Printing by printing fluid transfer

      
Application Number 16632414
Grant Number 10877406
Status In Force
Filing Date 2017-09-27
First Publication Date 2020-07-16
Grant Date 2020-12-29
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Borenstain, Shmuel
  • Savelzon, David
  • Bar-Haim, Gil

Abstract

In an example of a printing system, the amount of a printing fluid that is transferred from a developer unit onto an imaging plate is varied in order to alter the optical density of an area covered by the printing fluid.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

53.

Adjusting a colour in an image

      
Application Number 16604287
Grant Number 10878300
Status In Force
Filing Date 2017-09-26
First Publication Date 2020-07-02
Grant Date 2020-12-29
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Chen, Eli
  • Haik, Oren
  • Perry, Oded
  • Malki, Avi

Abstract

A method for processing an image is disclosed. The method may include obtaining a target image to be printed using print agent in a printable area of a substrate of a particular colour. The method may include obtaining a scanned image of a substrate on which the target image has been printed, the substrate being of the particular colour. The method may include determining, from the scanned image, the particular colour of the substrate. The method may include using the target image as a reference image against which the scanned image is to be compared. The method may include adjusting a colour in the reference image according to the determined particular colour of the substrate. An apparatus and a machine-readable medium are also disclosed.

IPC Classes  ?

  • G06K 1/00 - Methods or arrangements for marking the record carrier in digital fashion
  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers
  • G06T 7/194 - Segmentation; Edge detection involving foreground-background segmentation
  • G06T 7/00 - Image analysis

54.

Print agent supply unit valve

      
Application Number 16606759
Grant Number 10908529
Status In Force
Filing Date 2017-09-21
First Publication Date 2020-07-02
Grant Date 2021-02-02
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Berger, Shachar
  • Shanun, Sagie
  • Yosef, Ziv
  • Russell, Sarah Ann
  • Nelson, Eric G

Abstract

A print agent supply unit includes: an inlet chamber to distribute print agent within the print agent supply unit; a valve to selectively permit print agent into the inlet chamber, the valve including: a print agent inlet opening; and a valve member to selectively close the print agent inlet opening, the valve member being tapered towards an upstream end of the valve member.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • B41J 2/175 - Ink supply systems

55.

Transferring print agent using first and second transfer members

      
Application Number 16606758
Grant Number 11131947
Status In Force
Filing Date 2017-09-13
First Publication Date 2020-06-25
Grant Date 2021-09-28
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Rosenwein, Eyal
  • Schneider, Matan
  • Cohen, Lavi
  • Feygelman, Alex

Abstract

In an example, a method includes collecting (102) print agent from a print agent reservoir to form a print agent layer on a first print agent transfer member (204). The print agent layer may be transferred (104) directly from the first print agent transfer member to a second print agent transfer member (206), where the print agent layer may be heated (106). The print agent layer may be applied (108) directly from the second print agent transfer member to a substrate.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/11 - Removing excess liquid developer e.g. by heat

56.

Electrophotographic printer having a cleaning element

      
Application Number 16608174
Grant Number 10877424
Status In Force
Filing Date 2017-09-15
First Publication Date 2020-06-25
Grant Date 2020-12-29
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Cohen, Lavi
  • Macias Guzman, Minedys

Abstract

The present disclosure relates to an electrophotographic printer comprising a photoconductive cylinder, and a cleaning element comprising an absorbent foam substrate. The absorbent foam substrate has an abrasive material disposed on at least an outer surface of the absorbent foam substrate. At least part of the outer surface of the absorbent foam substrate is engageable with the photoconductive cylinder.

IPC Classes  ?

  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge

57.

Apparatus for adjusting control parameters of a printing substance for a printing system

      
Application Number 16628802
Grant Number 10992822
Status In Force
Filing Date 2017-07-12
First Publication Date 2020-06-25
Grant Date 2021-04-27
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Joseph, Lior
  • Landau, Yoav
  • Parvin, Noam

Abstract

Example aspects described herein relate to an apparatus for adjusting control parameters of a printing substance for a printing system. Such adjustments may occur in conjunction with a color calibration process of the printing system.

IPC Classes  ?

  • H04N 1/60 - Colour correction or control
  • H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
  • G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

58.

Print agent application assemblies

      
Application Number 16472975
Grant Number 10877402
Status In Force
Filing Date 2017-02-27
First Publication Date 2020-06-18
Grant Date 2020-12-29
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Sabo, David
  • Godden, John W.
  • Deregules, Alex

Abstract

In an example, a print agent application assembly includes a print agent transfer roller to receive print agent and transfer a portion of the print agent to a photoconductive surface and a print agent regulator roller to regulate a film thickness of print agent on the print agent transfer roller. The print agent regulator roller may include a nip forming region and a first mounting region. The print agent application assembly may further include a first resilient component which spans a diametrical width of the print agent regulator roller and acts on the print agent regulator roller outside the nip forming region to impart a lateral force to the first mounting region, the lateral force urging the print agent regulator roller towards the print agent transfer roller.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

59.

Condensing vapored fluid

      
Application Number 16349055
Grant Number 10875334
Status In Force
Filing Date 2017-02-16
First Publication Date 2020-06-18
Grant Date 2020-12-29
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Pines, Assaf
  • Nedelin, Peter
  • Sandler, Mark

Abstract

In an example, a condenser apparatus to condense vapored fluid has a gas inlet, a mesh, a cooling element, and a gas outlet. The mesh is configured to carry a layer of condensed fluid. The cooling element is configured to cool the layer of condensed fluid. The mesh is configured to let pass through vapored fluid and to create bubbles including vapored fluid in the layer of condensed fluid.

IPC Classes  ?

  • B41J 29/377 - Cooling or ventilating arrangements
  • B01D 5/00 - Condensation of vapours; Recovering volatile solvents by condensation

60.

Generating rasterized modified images from a rasterized seed image

      
Application Number 16606760
Grant Number 11170274
Status In Force
Filing Date 2017-08-31
First Publication Date 2020-06-18
Grant Date 2021-11-09
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Zamir, Raz
  • Shaham, Noam
  • Gaash, Amir

Abstract

In an example, a method includes rasterizing a seed image using a processor. A plurality of rasterized modified images may be generated from the rasterized seed image. Generating each rasterized modified image may include determining an image attribute modification and applying the determined image attribute modification to at least a portion of the rasterized seed image to generate the rasterized modified image.

IPC Classes  ?

  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers

61.

RFID device programming

      
Application Number 16617140
Grant Number 10990868
Status In Force
Filing Date 2017-06-20
First Publication Date 2020-06-11
Grant Date 2021-04-27
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Kaykov, Lior
  • Amir, Gideon

Abstract

A radio frequency identification (RFID) device programming apparatus includes a transport system (102) to transport media (104) in a transport direction (106), and an RFID device reader (112) to obtain first device identification data from a first RFID device (108) on the media and second device identification data from a second RFID device (110) on the media that is offset from the first RFID device in the transport direction. A first RFID device programmer (114) may program the first RFID device associated with the first device identification data, and a second RFID device programmer (116) may program the second RFID device associated with the second device identification data.

IPC Classes  ?

  • G06K 7/08 - Methods or arrangements for sensing record carriers by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
  • G06K 19/073 - Special arrangements for circuits, e.g. for protecting identification code in memory
  • G06K 7/10 - Methods or arrangements for sensing record carriers by corpuscular radiation
  • G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips

62.

Vacuum tables

      
Application Number 16617154
Grant Number 11123845
Status In Force
Filing Date 2017-06-21
First Publication Date 2020-06-11
Grant Date 2021-09-21
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Hartstein, Yonni
  • Yahav, Yaron

Abstract

There is disclosed a vacuum table 400 comprising a vacuum plate 402 separating a first vacuum chamber 406 from a substrate zone 60 for receiving a substrate 50. The vacuum plate has a plurality of suction holes 404 for conveying a gas flow from the substrate zone 60 to the first vacuum chamber 406. There is an evacuation port 422 in communication with a second vacuum chamber 420 to evacuate gas from the substrate zone 60 when a substrate 50 is received over the suction holes 404 of the vacuum plate 402, and a vacuum port 424 for discharging gas received in the second vacuum chamber 420 to a vacuum source 423. The first vacuum chamber 406 and the second vacuum chamber 420 are in fluid communication via a valve 430 so that gas flows from the first vacuum chamber 406 to the vacuum port 424 via the second vacuum chamber 420. The valve 430 is controllable to vary a gas flow rate through the vacuum plate 402 and thereby vary a retaining force on a substrate 50 received thereon.

IPC Classes  ?

  • B25B 11/00 - Work holders or positioners not covered by groups , e.g. magnetic work holders, vacuum work holders
  • B41F 21/06 - Suction-operated grippers
  • C23F 4/00 - Processes for removing metallic material from surfaces, not provided for in group or

63.

In-line printing calibration

      
Application Number 16617543
Grant Number 10877419
Status In Force
Filing Date 2017-06-30
First Publication Date 2020-06-11
Grant Date 2020-12-29
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Mashiach, On
  • Landau, Yoav

Abstract

In one example of the disclosure, a first print engine is caused to print a first image in a first set of sectors of a substrate. A second print engine is caused to print a second image in a second set of sectors of the substrate. The second print engine is caused to print a cover-up image over an incidence of the first image printed by the first print engine. The second print engine is caused to print a calibration image upon the cover-up image.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • B41J 29/393 - Devices for controlling or analysing the entire machine
  • B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers

64.

Ink development

      
Application Number 16776811
Grant Number 10802435
Status In Force
Filing Date 2020-01-30
First Publication Date 2020-05-28
Grant Date 2020-10-13
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Shoshani, Asaf
  • Cohen, Lavi
  • Finkelman, Ido
  • Grinstein, Meir

Abstract

In one example, a development cycle of a binary ink developer, BID, is timed. Timing may be based on the length of a substrate in which the image is to be printed or the size of the image or the area to be printed with the ink associated to the BID.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

65.

Method and apparatus for forming on a substrate a pattern of a material

      
Application Number 16710615
Grant Number 11206738
Status In Force
Filing Date 2019-12-11
First Publication Date 2020-05-21
Grant Date 2021-12-21
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Kella, Dror
  • Negreanu, Eyal
  • Amir, Gideon
  • Sandler, Mark
  • Grinwald, Yaron

Abstract

In a method and an apparatus for forming on a substrate (214) a pattern of a material, a material layer is provided on an intermediate carrier (204) and an adhesive layer is provided on the material layer, wherein at least one of the material layer or the adhesive layer comprises a pattern corresponding to the pattern to be formed on the substrate (214). The material is transferred to the substrate (214) with the adhesive fixing the material to a surface (216) of the substrate (214).

IPC Classes  ?

  • H05K 3/00 - Apparatus or processes for manufacturing printed circuits
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • H05K 3/20 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
  • H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
  • G03G 15/24 - Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups whereby at least two steps are performed simultaneously

66.

Measured sensor distance correction

      
Application Number 16744772
Grant Number 11027537
Status In Force
Filing Date 2020-01-16
First Publication Date 2020-05-14
Grant Date 2021-06-08
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Lucas, Nimrod
  • Hollenberg, Ofer
  • Soffer, Ran

Abstract

Example implementations relate to determining a correction factor that converts a measured sensor distance to a calibrated sensor distance. The measured sensor distance may be based on an amount of substrate advancement through a web printing press between detecting a mark on the substrate at a first sensor and detecting the mark at a second sensor. The calibrated sensor distance may be the separation between the first sensor and the second sensor.

IPC Classes  ?

  • B41F 13/02 - Conveying or guiding webs through presses or machines
  • B65H 23/188 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
  • B41F 33/02 - Arrangements of indicating devices, e.g. counters
  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
  • G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups

67.

Fluid application devices with resistive coatings

      
Application Number 16617550
Grant Number 10877425
Status In Force
Filing Date 2017-06-27
First Publication Date 2020-05-07
Grant Date 2020-12-29
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Li, Guang Jin
  • Tanchangco, Daniel
  • Negreanu, Eyal

Abstract

In one example in accordance with the present disclosure, a fluid application device is described. The device includes an application roller to deposit a fluid containing metallic particles on a surface. A squeegee roller of the device forms a first nip with the roller and a cleaner roller forms a second nip with the application roller. A first resistive coating is disposed on a surface of the application roller.

IPC Classes  ?

  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge

68.

Print termination

      
Application Number 16605590
Grant Number 11216221
Status In Force
Filing Date 2017-04-27
First Publication Date 2020-04-30
Grant Date 2022-01-04
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Portnoy, Vitaly
  • Assenheimer, Michel
  • Nachmias, Yoav
  • Cohen, Miriel

Abstract

In an example, a method for controlling termination of a print procedure subsequent to a node reset within print apparatus including a plurality of nodes includes identifying the node at which the reset occurred, and controlling operation within the print apparatus by way of a selected node. The selected node is different from the identified node and selected responsive to the identification of the identified node for operation of a component of the print apparatus as part of a termination procedure.

IPC Classes  ?

69.

Adjusting positions of images

      
Application Number 16603798
Grant Number 10990041
Status In Force
Filing Date 2017-04-13
First Publication Date 2020-04-30
Grant Date 2021-04-27
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Velner, Eli
  • Greenberg, Gilad
  • Miki, Bar-Navi

Abstract

According to some examples, a method comprises successively transferring a series of images from an imaging surface to an intermediate transfer member, ITM, then from the ITM to positions on a web substrate. The method may comprise intermittently adjusting a position at which particular images are transferred to the ITM by a first defined distance laterally across the ITM and by a second defined distance longitudinally with respect to the ITM. The method may comprise adjusting a position at which the particular images are transferred to the web substrate by approximately the first defined distance laterally relative to the ITM and by approximately the second defined distance longitudinally relative to the ITM. The method may comprise, after a first defined number of intermittent position adjustments, changing a direction in which the position is adjusted. A print apparatus and a machine-readable medium are also disclosed.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/23 - Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material

70.

Compensating voltages for electrophotography printing devices

      
Application Number 16605507
Grant Number 10795281
Status In Force
Filing Date 2017-08-24
First Publication Date 2020-04-23
Grant Date 2020-10-06
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Li, Guang Jin
  • Nelson, Eric G
  • Finkelman, Ido

Abstract

A method of balancing current in a developer roller is described. The method includes pulsing voltage to a squeegee roller and a cleaner roller. The pulsed voltage yields a differential voltage at the developer roller after impression. The method also includes pulsing compensating voltage to at least one of the squeegee roller or the cleaner roller to reduce or cancel an accumulated developer current imbalance of the developer roller. The compensating voltage pulses include pulses before or after the impression.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • G03G 15/06 - Apparatus for electrographic processes using a charge pattern for developing

71.

Generating an exposed image

      
Application Number 16617538
Grant Number 10739695
Status In Force
Filing Date 2017-06-23
First Publication Date 2020-04-23
Grant Date 2020-08-11
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Ambar, Oron
  • Breen, Craig
  • Yunger, Yuval
  • Vladomirski, Haim

Abstract

Certain examples described herein relate to an optical controller (140) for an exposure unit (115, 215) of a printer. In certain examples, memory (150) stores a plurality of data structures each comprising adjustment factors useable to adjust a plurality of optical elements (216) of the exposure unit. Different data structures correspond to different gray coverages in an image generated by the printer. In certain examples, a processor (160) determines gray levels for different image regions in input image data. In certain cases, the processor links the determined gray levels to corresponding data structures within the plurality of data structures to obtain adjustment factors for the different image regions. In certain cases, the processor adjusts the optical elements for each image region using the corresponding obtained adjustment factors to enable the generation of an exposed image using the exposure unit based on the input image data.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 15/043 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
  • G03G 15/04 - Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material

72.

Wheel

      
Application Number 16628787
Grant Number 11036174
Status In Force
Filing Date 2017-07-13
First Publication Date 2020-04-23
Grant Date 2021-06-15
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Chang, Seongsik
  • Mcgarry, John Tierney
  • Lee, Michael

Abstract

In one example, a wheel includes an annular body having a central axis; and multiple concentric grooves in the body surrounding the central axis. A first one of the grooves penetrates the body from a first side and a second one of the grooves penetrates the body from a second side opposite the first side.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • F16H 55/32 - Friction members

73.

Null segments in print jobs

      
Application Number 16605569
Grant Number 10739714
Status In Force
Filing Date 2017-04-24
First Publication Date 2020-04-23
Grant Date 2020-08-11
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Lavon, Amiran
  • Assenheimer, Michel
  • Portnoy, Vitaly

Abstract

According to examples, a method comprises receiving, at a processor, print job data relating to a print job to be performed by a print apparatus, the print job data defining order in which a plurality of colour separation images are to be transferred onto an imaging surface of the print apparatus. The method may comprise determining, based on the print job data, a number of null segments to be inserted into the print job and a location at which each null segment is to be inserted amongst the plurality of colour separation images. A print apparatus and a machine-readable machine are also disclosed.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

74.

Material displacement

      
Application Number 16617167
Grant Number 11104127
Status In Force
Filing Date 2017-06-23
First Publication Date 2020-04-23
Grant Date 2021-08-31
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Tagansky, Boaz
  • Fisher, Gil
  • Plotkin, Michael
  • Sandler, Mark
  • Teishev, Albert

Abstract

b) of material in the first stream of discrete volumes of material so as to interact with the first discrete volume of material and thereby displace the first discrete volume away from the first stream. An apparatus and a system for achieving such steps are also disclosed.

IPC Classes  ?

  • B41J 2/09 - Deflection means
  • 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 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • B41J 2/44 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source, e.g. lighting beams or shutter arrangements

75.

Printing system comprising a transport apparatus engaged with a track and method of printing

      
Application Number 16628779
Grant Number 11772921
Status In Force
Filing Date 2017-07-28
First Publication Date 2020-04-23
Grant Date 2023-10-03
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Koloditsky, Yechiam
  • Meiri, Ilan
  • Menashe, Avihay

Abstract

A printing system comprises a print station and print medium transport system. The print medium transport system comprises a track and a transport apparatus engaged with the track. The track defines a transport path past the print station, the transport path has a print medium entry point and a print medium exit point. The transport apparatus comprises: a drive for moving the transport apparatus along the track; and a gripping system. The gripping system can be moved between a first position in which a sheet of print medium is gripped and a second position in which the sheet of print medium is released. In use, the gripping system is configured to be in the first position when the transport apparatus is in motion along the track from the print medium entry point to the print medium exit point.

IPC Classes  ?

  • B65H 5/08 - Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
  • B65H 29/02 - Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles

76.

Selective primer removal

      
Application Number 16603801
Grant Number 11215947
Status In Force
Filing Date 2017-04-18
First Publication Date 2020-04-16
Grant Date 2022-01-04
Owner HP Indigo B.V. (Netherlands)
Inventor Feygelman, Alex

Abstract

In one example, an apparatus for selectively removing primer in a printing system is described, having a chamber for supply of a pressurised fluid, a plurality of valves fluidically coupled to the chamber and individually pivotable about a common elongate member that extends along a length of the apparatus, and a set of actuators to pivot the plurality of valves about the elongate member to selectively supply pressurised fluid from the chamber along the length of the apparatus.

IPC Classes  ?

  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
  • B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

77.

Duplex printing

      
Application Number 16603811
Grant Number 10828911
Status In Force
Filing Date 2017-04-25
First Publication Date 2020-04-16
Grant Date 2020-11-10
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Havive, Moshe Koko
  • Greenberg, Gilad
  • Yogev, Zvika
  • Elihav, Arnon

Abstract

A duplex printing system and method of configuring the same are described. In examples, an image, such as a test pattern, on one side of a print substrate is printed to be out of phase with an image, such as a test pattern, on the other side of the print substrate. This is achieved by adjusting a configuration of a print buffer that is located between first and second print engines of the duplex printing system. In particular examples, a length of a web within the print buffer is controlled such that the images are out of phase.

IPC Classes  ?

  • 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
  • B41J 29/393 - Devices for controlling or analysing the entire machine
  • B41J 15/00 - Devices or arrangements specially adapted for supporting or handling copy material in continuous form, e.g. webs
  • B41J 25/00 - Actions or mechanisms not otherwise provided for

78.

Print agent transfer assemblies

      
Application Number 16603795
Grant Number 10824084
Status In Force
Filing Date 2017-04-10
First Publication Date 2020-04-09
Grant Date 2020-11-03
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Nedelin, Peter
  • Lior, Shai
  • Sandler, Mark

Abstract

A print agent transfer assembly including a print agent transfer member to receive a first layer and a second layer of print agent, and an energy source to provide energy at a first predetermined intensity level to the first layer and to provide energy at a second, different predetermined intensity level to the second layer.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 13/20 - Fixing, e.g. by using heat
  • G03G 13/10 - Developing using a liquid developer
  • G03G 15/11 - Removing excess liquid developer e.g. by heat

79.

Printing liquids concentration

      
Application Number 16700083
Grant Number 11003111
Status In Force
Filing Date 2019-12-02
First Publication Date 2020-04-02
Grant Date 2021-05-11
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Kadis, Giries
  • Klein, Marc
  • Sandler, Mark
  • Nedelin, Peter
  • Richter, Marko

Abstract

An example apparatus includes a conveyor. The apparatus also includes a first developer unit. The first developer unit is to concentrate first printing liquid. The first developer unit also is to deliver the first printing liquid to the conveyor. The apparatus also includes a second developer unit. The second developer unit is to concentrate second printing liquid. The second developer also is to deliver the second printing liquid to the conveyor to form a thick layer of printing liquid comprising the first and second printing liquid.

IPC Classes  ?

  • G03G 15/11 - Removing excess liquid developer e.g. by heat

80.

Roller arrangement, a method of forming a pattern, a method of printing a pattern and apparatus for printing a pattern

      
Application Number 16699317
Grant Number 10800161
Status In Force
Filing Date 2019-11-29
First Publication Date 2020-03-26
Grant Date 2020-10-13
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Lewinz, Lior
  • Fisher, Gil
  • Manousakis, Stylianos

Abstract

A roller arrangement for printing apparatus comprises a first roller. The first roller comprises a plurality of cells. Each of the plurality of cells receives an amount of a coating material. The roller arrangement further comprises an extractor to remove at least a portion of the coating material from a selected set of the plurality of the cells.

IPC Classes  ?

  • B41F 31/20 - Ink-removing or collecting devices
  • B41F 31/02 - Ducts, containers, supply or metering devices
  • B41M 1/04 - Flexographic printing
  • B41F 31/28 - Spray apparatus, e.g. containing brushes

81.

Wiper assemblies

      
Application Number 16472994
Grant Number 10845734
Status In Force
Filing Date 2017-02-27
First Publication Date 2020-03-19
Grant Date 2020-11-24
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Sabo, David
  • Godden, John W.

Abstract

A print agent application assembly is disclosed. The print agent application assembly may include a first roller to remove print agent from a surface of a print agent transfer roller. The print agent application assembly may include a second roller having an absorbent element to engage the first roller as the second roller rotates relative to the first roller, the absorbent element to absorb print agent from the first roller. The print agent application assembly may include a wiper assembly. The wiper assembly may include a wiper element to scrape print agent from the surface of the first roller as the first roller rotates, and an engagement element to engage with and compress a portion of the absorbent element of the second roller as the second roller rotates relative to the wiper assembly. A method and a roller cleaning assembly are also disclosed.

IPC Classes  ?

  • G03G 15/11 - Removing excess liquid developer e.g. by heat

82.

Operating a liquid electrophotographic printer

      
Application Number 16685693
Grant Number 10877403
Status In Force
Filing Date 2019-11-15
First Publication Date 2020-03-12
Grant Date 2020-12-29
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Borenstain, Shmuel
  • Stein, Shahar
  • Anufa, Asaf

Abstract

An example method of performing a null cycle in a liquid electrographic printer is described. The method involves collecting, at a photo imaging plate cleaning station, imaging oil deposited on a photo imaging plate during a print cycle. During a null cycle, the photo imaging plate cleaning station is controlled to apply the collected imaging oil to the photo imaging plate.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 21/10 - Collecting or recycling waste developer
  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge

83.

Detecting arrival of ink in a liquid ink printing system

      
Application Number 16493970
Grant Number 10875292
Status In Force
Filing Date 2017-04-05
First Publication Date 2020-03-12
Grant Date 2020-12-29
Owner HP INDIGO B.V. (Netherlands)
Inventor
  • Cohen, Lavi
  • Shoshani, Asaf

Abstract

An example printing system for printing liquid ink has a developer device to transfer ink to an image plate of the printing system. The developer device has an ink inlet to receive ink from an ink reservoir of the printing system; a developer roller to transfer ink to the image plate, a motor to rotate the developer roller, and an ink sensor to detect arrival of ink at the developer device. The printing system is configured to start the motor in response to the ink sensor detecting arrival of ink at the developer device.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • B41F 31/02 - Ducts, containers, supply or metering devices

84.

Liquid electrophotographic ink(s)

      
Application Number 16469875
Grant Number 11067914
Status In Force
Filing Date 2017-03-17
First Publication Date 2020-03-12
Grant Date 2021-07-20
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Biadglin, Getahun
  • Masoud, Emad
  • Avigdor, Reut
  • Teishev, Albert
  • Ben-Ezra, Tehila
  • Shutyi, Igor
  • Marom Tchaicheeyan, Hanit

Abstract

The present disclosure discloses a liquid electrophotographic ink. The ink can include (A) a liquid vehicle; (B) at least one colorant; (C) a resin comprising an ethylene acid copolymer; (D) an ethylene/(meth)acrylic acid C1-10 alkyl ester copolymer selected from the group consisting of an ethylene/methyl acrylate copolymer and an ethylene/butyl acrylate copolymer; and (E) a condensation product of urea and aldehyde.

IPC Classes  ?

  • G03G 9/13 - Developers with toner particles in liquid developer mixtures characterised by polymer components
  • G03G 9/135 - Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
  • G03G 9/125 - Developers with toner particles in liquid developer mixtures characterised by the liquid
  • G03G 9/12 - Developers with toner particles in liquid developer mixtures

85.

Liquid carrier collection

      
Application Number 16493954
Grant Number 10955769
Status In Force
Filing Date 2017-04-05
First Publication Date 2020-03-12
Grant Date 2021-03-23
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Sandler, Mark
  • Nedelin, Peter
  • Pines, Assaf

Abstract

An example method of collecting liquid carrier from a vapour in a printing system includes: heating a vapour carrying a liquid carrier and passing the heated vapour carrying liquid carrier through a volume of liquid carrier. Liquid carrier carried in the heated vapour condenses into the volume of liquid carrier as it passes through the volume of liquid carrier.

IPC Classes  ?

  • G03G 15/11 - Removing excess liquid developer e.g. by heat
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 21/10 - Collecting or recycling waste developer
  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge

86.

Generation of images

      
Application Number 16677254
Grant Number 10936257
Status In Force
Filing Date 2019-11-07
First Publication Date 2020-03-05
Grant Date 2021-03-02
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Gaash, Amir
  • Morris, Steve
  • Kramer, Shlomi
  • Ismael, Muhannad
  • Bibi, Guy
  • Peled Vaissman, Hadar

Abstract

Multiple packages are manufactured by defining a package template, with at least one individualized image area, and selecting at least one image seed. For each package, an index key is selected and, based on the selected index key, a plurality of image attribute modifications are determined from within applicable ranges of image attribute modifications. The determined image attribute modifications are applied to the image seed or seeds to generate respective images, and the image or images are applied to the respective individualized image area of the package.

IPC Classes  ?

  • G06F 3/12 - Digital output to print unit
  • G09F 3/00 - Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
  • G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers
  • G06Q 50/28 - Logistics, e.g. warehousing, loading, distribution or shipping
  • G06Q 30/02 - Marketing; Price estimation or determination; Fundraising
  • B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material

87.

Cleaning unit

      
Application Number 16668209
Grant Number 10866541
Status In Force
Filing Date 2019-10-30
First Publication Date 2020-02-27
Grant Date 2020-12-15
Owner HP Indigo B.V. (Netherlands)
Inventor Chertov, Igor

Abstract

A cleaning unit for removing debris from an ink transfer surface includes a cleaning roller having: a microcellular material outer layer; a wetting module to supply cleaning fluid to the microcellular material outer layer of the cleaning roller; and an extractor to remove cleaning fluid and debris from the cleaning roller.

IPC Classes  ?

  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
  • G03G 15/11 - Removing excess liquid developer e.g. by heat

88.

Roller seal for a developer unit in a liquid electrophotographic printer

      
Application Number 16461118
Grant Number 10775715
Status In Force
Filing Date 2017-01-31
First Publication Date 2020-02-27
Grant Date 2020-09-15
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Sabo, David
  • Godden, John
  • Kozmiski, Stanley

Abstract

In one example, a seal for a developer roller in a liquid electrophotographic printer includes an arcuate body curved along a body arc. The body has an inboard face that defines an annular sealing surface along the body arc to contact a face on one end of the developer roller and a guide surface across the body arc at a first end of the annular sealing surface. The guide surface is oriented along a chord of the body arc and intersects the body arc at an obtuse interior angle, to guide any ink encountering the guide surface outward toward the circular outer surface of the developer roller.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • G03G 15/11 - Removing excess liquid developer e.g. by heat
  • G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge

89.

Calibration of a sensor

      
Application Number 16344418
Grant Number 10836182
Status In Force
Filing Date 2016-10-31
First Publication Date 2020-02-13
Grant Date 2020-11-17
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Gilan, Ziv
  • Shemer, Zvi
  • Atad, Shai
  • Haik, Shlomo
  • Roth, Yehuda
  • Sandik, Pavel

Abstract

In one example of the disclosure, an uncalibrated sensor may be calibrated. Calibrated sensor data is obtained. The data relates to an amount of light transmitted through an ink solution of a first colour as a function of ink concentration. An amount of light transmitted through an ink solution of the first colour is measured, using the uncalibrated sensor, at a plurality of ink concentrations. A calibration factor relating the light transmission of the calibrated sensor for the first colour and the light transmission of the uncalibrated sensor for the first colour is determined, using a processor, based on the obtained data and the measurements.

IPC Classes  ?

90.

Altering the operation of printing devices having engageable components

      
Application Number 16346132
Grant Number 10852667
Status In Force
Filing Date 2017-01-26
First Publication Date 2020-02-13
Grant Date 2020-12-01
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Cohen, Lavi
  • Froom, Alon
  • Porat, Amit
  • Shoshani, Asaf

Abstract

In an example, a printing device comprises a component to engage with a surface, a first load sensor, a second load sensor and a controller. The component has a first part which is drivable to engage and disengage with the surface by a first engagement device and a second part which is drivable to engage and disengage with the surface by a second engagement device. The first load sensor is to measure a load on the first engagement device. The second load sensor is to measure a load on the second engagement device. The controller is to receive first load information from the first load sensor and second load information from the second load sensor; and determine whether or not to alter an operational parameter of the printing device, based on the received first load information and the received second load information.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

91.

Blanket memory artifact reduction

      
Application Number 16485516
Grant Number 10802422
Status In Force
Filing Date 2017-03-01
First Publication Date 2020-02-13
Grant Date 2020-10-13
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Nedelin, Peter
  • Sandler, Mark
  • Lior, Shai

Abstract

In one example of the disclosure, a first transfer of ink is made from a photoconductor to a blanket in contact with the photoconductor. The blanket is to cycle along a path. The first transfer occurs at a first arc of the blanket path. A second transfer of the ink is made from the blanket to a media in contact with the blanket. The second transfer occurs at a second arc of the blanket path. A heat source located adjacent to a third arc of the blanket path is utilized to heat an external surface of the blanket. The heating is to occur following the second transfer of the ink.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern

92.

Layer thickness in print agent concentration apparatus

      
Application Number 16603805
Grant Number 10712688
Status In Force
Filing Date 2017-04-24
First Publication Date 2020-02-06
Grant Date 2020-07-14
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Dayan, Benjamin
  • Cohen, Ezra
  • Klein, Marc

Abstract

In an example, a method includes providing a print agent comprising chargeable particles in a carrier fluid to a print agent concentration apparatus (600). The print agent may be passed between a conveyor (604) and an electrode (602), and a potential applied to cause the chargeable particles to be attracted to the conveyor and to form a concentrated layer of particles on the conveyor. A proportion of the carrier fluid may be separated from the concentrated layer of particles and a thickness of a remaining layer on the conveyor may be measured. It may be determined if the measured thickness of the layer meets predetermined criteria and, if not, an operational parameter of the print agent concentration apparatus may be adjusted.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

93.

Controlling engagement force

      
Application Number 16653669
Grant Number 10838325
Status In Force
Filing Date 2019-10-15
First Publication Date 2020-02-06
Grant Date 2020-11-17
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Porat, Amit
  • Verner, Maty
  • Froom, Alon
  • Grinstein, Meir

Abstract

Measures for controlling an engagement force between a photo imaging plate and a developer roller in a printing device are described. A motor is operated to generate rotational motion. The rotational motion is translated into linear motion. The linear motion causes an adjustment to the engagement force between the developer roller and the photo imaging plate. A characteristic of the motor is monitored. The motor is controlled on the basis of the monitored characteristic in order to maintain a desired engagement force between the developer roller and the photo imaging plate.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 21/16 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements

94.

Printing on a web of a printing substrate

      
Application Number 16603808
Grant Number 10990862
Status In Force
Filing Date 2017-04-25
First Publication Date 2020-02-06
Grant Date 2021-04-27
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Zamir, Raz
  • Havive, Moshe Koko
  • Greenberg, Gilad
  • Hod, Michal
  • Ben David, Shlomi

Abstract

Method and apparatus for printing on a printing substrate which is a web which is elongate in a longitudinal direction, wherein frames of a maximum printing format can be printed in a sequence on the web. The printing includes arranging a number of pages on sheets of a given sheet format, wherein the maximum printing format is larger in the longitudinal direction of the web than the sheet format, wherein pages which are adjacent in the longitudinal direction of the web are separate from each in the longitudinal direction of the web, imposing pages of more than one sheet into printing frames which are larger in the longitudinal direction of the web than the sheet format but not larger than the maximum printing format, printing the frames, and grouping the pages from the printed frames to sheets on which the pages are arranged as originally.

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

95.

Layers for resistance to adhesion of ink

      
Application Number 16603804
Grant Number 10768553
Status In Force
Filing Date 2017-04-18
First Publication Date 2020-01-30
Grant Date 2020-09-08
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Berger, Shachar
  • Shanun, Sagie
  • Chriqui, Gilles

Abstract

In one aspect an apparatus for use in an electrographic printer includes a tray defining a cavity, the tray having an internal surface, and an ink developer electrode disposed in the cavity for developing an ink. There is a first layer disposed on the internal surface, the first layer including a dielectric material, and a second layer disposed on the first layer, the second layer adhering to the first layer and being resistant to the adhesion of ink. In another aspect manufacturing such apparatus includes applying respective polymer precursor compositions to form the two layers and crosslinking the second polymer composition.

IPC Classes  ?

  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

96.

Scratch identification utilizing integrated defect maps

      
Application Number 16487736
Grant Number 10635040
Status In Force
Filing Date 2017-03-21
First Publication Date 2020-01-30
Grant Date 2020-04-28
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Perry, Oded
  • Haik, Oren
  • Malki, Avi

Abstract

In one example of the disclosure, a set of scanned images is accessed. The scanned images are scans of distinct printouts of subject images produced utilizing a photo imaging plate. A set of defect maps is created by comparing the scanned images to reference data for the subject images. The set of defect maps are combined into an integrated defect map. A scratch defect on the PIP is identified utilizing the integrated defect map.

IPC Classes  ?

  • G03G 15/00 - Apparatus for electrographic processes using a charge pattern
  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

97.

Liquid electrophotographic adhesive composition

      
Application Number 16470110
Grant Number 10859937
Status In Force
Filing Date 2017-03-21
First Publication Date 2020-01-16
Grant Date 2020-12-08
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Tzomik, Inna
  • Gilan, Ziv
  • Kogan, Faina
  • Romantcov, Gleb

Abstract

Herein is described a liquid electrophotographic adhesive composition comprising a thermoplastic resin, a moisture activatable adhesive, and a liquid carrier.

IPC Classes  ?

  • G03G 9/13 - Developers with toner particles in liquid developer mixtures characterised by polymer components
  • G03G 8/00 - Layers covering the final reproduction, e.g. for protecting, for writing thereon
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
  • G03G 13/10 - Developing using a liquid developer

98.

Liquid electrostatic ink developer assembly

      
Application Number 16495349
Grant Number 11181849
Status In Force
Filing Date 2017-06-28
First Publication Date 2020-01-16
Grant Date 2021-11-23
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Chin, Anna
  • Tanchangco, Daniel
  • Huang, Bin
  • Li, Guang Jin
  • Iu, Kai-Kong

Abstract

Described herein is a liquid electrostatic ink developer assembly comprising a developer roller having a surface coating, the surface coating comprising a polyurethane resin formed from a polyol; a hydroxyl-terminated polysiloxane; and a polyisocyanate. Also, described herein is a liquid electrostatic printing apparatus comprising the liquid electrostatic ink developer assembly.

IPC Classes  ?

  • G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
  • C08G 18/40 - High-molecular-weight compounds
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/61 - Polysiloxanes
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08G 77/16 - Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxy groups
  • C08G 77/458 - Block- or graft-polymers containing polysiloxane sequences containing nitrogen-containing sequences containing polyurethane sequences
  • C08L 83/04 - Polysiloxanes
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

99.

Maintenance program for liquid electro-photographic printing processes

      
Application Number 16491480
Grant Number 10768554
Status In Force
Filing Date 2017-04-03
First Publication Date 2020-01-16
Grant Date 2020-09-08
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Shiran, Eran
  • Libster, Dima
  • Finkelman, Ido
  • Slivniak, Raia

Abstract

A liquid electro-photographic, LEP, printing system, comprising a photo imaging plate, PIP, an intermediate transfer member, ITM, and a control unit. The control unit causes the system to initiate a maintenance program, wherein the maintenance program comprises driving the PIP and the ITM while disabling particle transfer to the PIP and applying a voltage difference between the PIP and surface portions of the ITM.

IPC Classes  ?

  • G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
  • G03G 15/10 - Apparatus for electrographic processes using a charge pattern for developing using a liquid developer

100.

Electrostatic ink compositions and scratch-off structures

      
Application Number 16566168
Grant Number 11112717
Status In Force
Filing Date 2019-09-10
First Publication Date 2020-01-02
Grant Date 2021-09-07
Owner HP Indigo B.V. (Netherlands)
Inventor
  • Tzomik, Inna
  • Teishev, Albert

Abstract

Disclosed herein is an electrostatic ink composition comprising a component selected from a fatty acid ester having a plurality of hydroxyl substituents and a fatty acid amide having a plurality of hydroxyl substituents. Also described herein are scratch-off structures and methods for producing them.

IPC Classes  ?

  • G03G 9/135 - Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
  • B42D 15/02 - Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets
  • C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
  • B41M 3/00 - Printing processes to produce particular kinds of printed work, e.g. patterns
  • A63F 3/06 - Lottos or bingo games; Systems, apparatus or devices for checking such games
  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
  • G09F 3/00 - Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
  • B42D 25/27 - Lots, e.g. lottery tickets
  • G03G 9/125 - Developers with toner particles in liquid developer mixtures characterised by the liquid
  • G03G 9/13 - Developers with toner particles in liquid developer mixtures characterised by polymer components
  • G03G 13/10 - Developing using a liquid developer
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