CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Jacobs, Roy H.R.
Shokrpour Roudbari, Mahnaz
Abstract
An inkjet print head (10) having a nozzle face (12) arranged form a gap (16) with surface of a media conveyor (14), an air duct (22) and a suction blower (20) arranged to withdraw air from said gap (16), and an array (24) of electrodes arranged to create an inhomogeneous electric field for attracting droplets of an ink mist, characterized in that said array (24) of electrodes is arranged within the air duct (22).
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Ramackers, Hendrikus G.M.
Draad, Adrianus A.
Abstract
A gas impingement unit comprising a gas source (10) and an array (24) of nozzles (20) connected to the gas source (10) and directed onto a support and transport surface (14) arranged for supporting sheet- or web-like media (16) and moving them in a transport direction (A) past the array of nozzles, wherein the nozzles (20) are evenly distributed over an area of the support and transport surface (14), characterized in that said array (24) is an array of interleaved nozzles (20) and vent openings (22), wherein the vent openings (22) are arranged for allowing gas that has been blown out from the nozzles (20) to escape in a direction normal to the support and transport surface (14).
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Schell, Jeroen A.
Abstract
A printing method comprising the steps of: - forming an image by applying marking material (I) onto the surface of a substrate (14); - subjecting the image to a fixation treatment; and - applying a layer (V) of an ionically stabilized varnish on the surface of the image, wherein, when the image has been formed, a layer of liquid solvent (S) is formed on at least a part of the surface of the image, thereby causing ions to migrate from the marking material (I) into the solvent (S) and then to be absorbed into the substrate (14) together with a part of the solvent before the varnish s applied.
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Heimpoldinger, Herbert
Biglari, Mehrad
Maier, Christian
Abstract
The invention relates to a device for printing a recording medium (120) and to a device (114, 214) for turning a recording medium (120), each comprising a transport roller (300) which has a base body (310) on the lateral surface of which a protective layer (312) is formed. The protective layer (312) comprises at least one ruthenium layer (174). The invention relates to a method for producing a protective layer (312) on a part of the surface of the base body (310) of a transport roller (300), which comprises at least the application of a ruthenium layer (174) to the base body (310).
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Boerstal, Hendricus G.J.
Hollands, Peter J.
Shokrpour Roudbari, Mahnaz
Abstract
A compact fluid distribution device (130) for a print head assembly (100) is provided, which device allows for the effective removal of gas from the device during operation and purging. The device comprises a fluid chamber (131) with a fluid permeable filter (132) forming a dividing wall in the fluid chamber, such that an inlet (137) is positioned on a first side of the filter and the outlet (135) is positioned on a second side of the filter. The filter is inclined with respect to a first direction parallel to a vertical direction during operation, such that a first volume in the fluid chamber between the filter and a first side wall facing the filter tapers in a direction away from the inlet.
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Freudenberg, Frank
Gerstner, Albrecht
Kürmeier, Christian
Abstract
The invention relates to a suction device (200) for an inkjet printing device (100). Said suction device is designed to guide a printed recording medium (120) along a transport direction (1) through a constriction (202) with a counter-rotating gas flow (204) in order to be able to efficiently and comprehensively suction ink mist (170) in the transport direction (1) upstream of the constriction (202).
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Gerstner, Albrecht
Freudenberg, Frank
Kürmeier, Christian
Abstract
The invention relates to a suction device (200) for an inkjet printing device (100). Said suction device is designed to guide a printed recording medium (120) along a transport direction (1) through a constriction (202) with a counter-rotating gas flow (204) in order to be able to efficiently and comprehensively suction ink mist (170) in the transport direction (1) upstream of the constriction (202).
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Mayr, Stefan
Biglari, Mehrad
Pilsl, Stephan
Abstract
An inkjet printing device (10) for printing onto a web-type recording medium (12) with ink comprises a printing module (M1) having a printing unit (14) which has a plurality of printing bars (16), each of which bars has one or more printing heads. The printing device (10) also comprises a transfer carriage (18) for guiding the recording medium (12), which carriage can be moved into and out of a space (R) below the printing unit (14). In a printing operating state, the transfer carriage (18) is positioned in the space (R) and guides the recording medium (12) during printing. In a maintenance operating state, the transfer carriage (18) is moved out of the space (R). A cleaning module (M9) of the printing device (10) has at least one cleaning element for cleaning at least one printing head of the printing module (M1). The at least one cleaning element is positioned laterally adjacent to the space (R) in the transport direction (T) of the recording medium (12) in the printing operating state, and is positioned in said space (R) in the maintenance operating state.
B41J 15/04 - Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
B41J 15/06 - Supporting, feeding, or guiding devices; Mountings for web rolls or spindles characterised by being applied to printers having stationary carriages
B41J 15/00 - Devices or arrangements specially adapted for supporting or handling copy material in continuous form, e.g. webs
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Willems, Guido G.
Schell, Jeroen A.
Abstract
The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising: water; magnesium-sulfate; and a crystallization retarding agent selected from the group consisting of: sorbitol, xylitol, adonitol, β-alanine, proline and γ-aminobutyric acid. The pre-treatment liquid is non¬ yellowing, non-smelling and does not crystallize upon drying. Prints made by using a pre-treatment liquid according to the present invention in combination with an aqueous ink shows a significant decrease of end-curl after a long period of time.
C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Wijnheijmer, Albertine P.
Teussink, Bart
Gollatz, Johannes A.T.
Geraets, Jacques J.M.
Leus, Gerardus R.B.
Abstract
The present invention relates to a method of ink jet printing using an ink jet imaging device comprising a plurality of nozzles arranged for expelling droplets of an ink by actuation of an ink channel. The method comprises the steps of: a) providing a bit map of a spit pattern comprising an arrangement of refresh dots to be printed by each of the plurality of nozzles;d) printing the bitmap of the spit pattern;characterized in that the spit pattern comprises a plurality of clusters of refresh dots, each cluster comprising at least two sequential refresh dots expelled from a single nozzle. The present invention further relates to a spit pattern for use in such a method.
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Haenen, Marcel J.H.M.
Heijnders, Ludovicus M.
Abstract
A printer comprising: - a print station (10); - a media transport mechanism (12, 14) arranged for conveying print media (18) on a transport path past the print station (10), the transport mechanism having a support surface (16) for supporting the media (18); and - a vacuum device (22) arranged for attracting the media (18) against the support surface (16) on a section (14) of the transport path downstream of the print station (10), characterized in that the vacuum device (22) is divided, the direction along the transport path, into at least two segments (24, 26) in which the media are attractable with different non-zero suction pressures.
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Van Leeuwen, Oscar
Willemse, Robin X.E.
Versleijen, Mea A.H.
Abstract
The present invention relates to a method for printing on an adhesive medium. The present invention further relates to a printed product. In addition, the present invention relates to a method for applying an image onto an object. The present invention also relates to a radiation-curable ink composition.
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
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Van Vliembergen, Eduardus J.W.
Abstract
The invention relates to a method for profiling a print medium for use in a printing system. The print medium is received in an input holder and a plurality of test jobs is received in a test job receiver. For each test job a uniquely determined combination of at least a first printing system parameter of print speed of the printing system and a second printing system parameter of coverage of the marking material is intended to be prepared by a print controller. The printing system registers a test result of each test job. The print controller creates a two-dimensional media print mode table of media print modes for the print medium to be profiled based on the test results of the test jobs for the print medium. When a print job arrives intended to be printed on the profiled medium, a media print mode is selected from the two- dimensional media print mode table.
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Van Heijst, Cornelis P.M.
Aarts, Peter J.M.
Abstract
An inkjet printer having a carriage assembly (12) and a holder (10) arranged to move a recording medium (14) relative to the carriage assembly (12) in a sub-scanning direction (x), wherein the carriage assembly (12) comprises: a print carriage (16) that is movable in a main scanning direction (y) normal to the sub-scanning direction (x); a curing lamp (30), and a print head unit (20) arranged on the print carriage for printing a swath (36) of an image onto the recording medium (14), the print carriage (16) further having a mirror assembly (24) arranged to deflect light from the curing lamp (30) onto an exposure area (a1, a2) on the printed swath, characterized in that the carriage assembly (12) comprises a cure carriage (26) that is movable in the main scanning direction (y) independently of the print carriage (16), the curing lamp (30) is arranged on the cure carriage (26) for emitting curing light towards the print carriage (16), and the mirror assembly (24) comprises first and second mirrors (ml, m2) that are offset from one another in the main scanning direction (y) and are arranged to be selectively aligned with the curing lamp (30) by controlling a relative movement of the cure carriage (26) and the print carriage (16), and the exposure area (a2) of the second mirror (m2) has a smaller dimension in the sub-scanning direction (x) than the exposure area (a1) of the first mirror (ml).
CANON PRODUCTION PRINTING HOLDING B.V.. (Netherlands)
Inventor
Van Beek, Albert M.
Haenen, Marcel J.H.M.
Albers, Antonius G.H.
Smeyers, Johannes H.L.
Nellen, Wilhelmus H.J.
Abstract
The present invention relates to an air impingement module for an inkjet printer. The air impingement module for an inkjet printer comprises a plate for creating an array of air beams comprising a plurality of impingement holes. Further, the air impingement module for an inkjet printer comprises a width adjustment arrangement for blocking the array of air beams of the air impingement modules in a direction (z) substantially perpendicular to the transport direction of a printing substrate (y) and substantially perpendicular to the normal to the plane of the surface of a printing substrate (x) which is also the impingement direction, such that the array of air beams are restricted to a particular width, and such that directions x, y, and z form a substantially orthogonal axes system.
CANON PRODUCTION PRINTING HOLDING B.V. (Netherlands)
Inventor
Slaats, Bianca P.S.
De Vries, Jantina C.
Abstract
A method of ink jet printing comprising a step of printing a primer (18) onto a media sheet; and a step of printing with ink (38) onto the media sheet so as to form an image superposed on the primer (18), the step of printing with ink being carried out with a print head having an array of nozzles staggered in several rows, while performing a relative scan movement of the print head and the media sheet in a transport direction (x) normal to the rows, characterized in that the primer (18) is printed on the media sheet non- uniformly in a pattern that corresponds with a pattern in which the nozzles of the print head are staggered.
patents
