Canon Production Printing Patente

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

In order to directly stack printed sheets at the edge of a pallet for improved compatibility with certain finishers, the present invention provides:A sheet printer (1) comprising:- a stacker (20; 120) at an end of a transport path of the printer (1), which stacker (20; 120) is configured to hold a pallet (30; 130) and to form a stack (16; 116) of printed sheets (S, S') thereon;- a registration unit (6, 12; 112) for adjusting an position and/or orientation of a sheet (S, S'),characterized in that- the stacker (20; 120) comprises a stack holder (29) for holding the pallet (30; 130) with one of its edges at a predetermined pallet edge position (P; P') in a first direction (X, Y); and- that a controller (38) is configured to control registration unit (6,12; 112) to position the sheet (S, S') with a corresponding edge at the predetermined pallet edge position (P; P') in the first direction (X, Y).

A method of inkjet printing an elevated structure on a print medium which comprises the steps of depositing radiation curable marking material on the print medium, such that an array of spaced apart drops is formed, curing said spaced apart drops by irradiating the drops, forming the drops into a plurality of spaced apart, out-of-plane structures by repeatedly depositing a further drop of radiation curable marking material on each drop and curing the further drops, thereby adhering the further drops to the drop, wherein each repetition increases a height of the structures with respect to the surface. A backlight is provided behind the print medium to realize visual effects for an observer on the front side.

Zusammenfassung wird geladen …

The present invention seeks to improve print image quality by reducing vibrations of a first beam (37, 37') extending over a medium support surface (40, 40') and moveably supporting a print head carriage (32, 32'). A vibration sensor (55, 55') is provided for detecting a vibration in the first beam (37, 37'). An actuator (50, 50') is positioned between the first beam (37, 37') and a vibration absorption body (39, 39'). A controller is configured to receive data from the vibration sensor (55, 55') and to control the actuator (50, 50') to at least partially transfer the vibration from the first beam (37, 37') to the vibration absorption body (39, 39').

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

The present invention relates to a method of printing for improving print quality, the method comprising the steps of applying a layer of a pre-treatment liquid to a surface of a print substrate; printing an image on top of the layer of the pre-treatment liquid; pre-drying a printed print substrate obtained in step b at a temperature of between 30 and 50 degrees Celsius for 2-6 seconds; drying of and/or fixation of the image on the print printed substrate obtained after the pre-drying step. The invention also relates to a printing system for performing said method.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

The present invention relates to a method for cleaning an ink jet imaging device, the ink jet imaging device comprising a main ink supply channel (2) comprising an entrance side for supplying ink, a first ink channel comprising a first pressure chamber fluidly connected to a first nozzle; and a first actuator associated with the first pressure chamber, the first ink channel being in fluid connection with the main ink supply channel and defining a first ink path from the entrance side of the main ink supply channel to the first nozzle and having a first length L1, the ink jet imaging device comprising a second ink channel comprising a second pressure chamber fluidly connected to a second nozzle; and a second actuator associated with the second pressure chamber, the second ink channel being in fluid connection with the main ink supply channel and defining a second ink path from the entrance side of the main ink supply channel to the second nozzle and having a second length L2, wherein L2>L1; the method comprising the steps of: a) purging ink through the first and the second nozzle by applying a pressure on the entrance side of the main ink supply channel; and b) simultaneously to step a) actuating the first ink channel by applying a first actuation pulse to the first actuator wherein the actuation pulse provides a pressure wave in the first ink channel that counteracts the local pressure in the first ink channel, such that the flow through the first ink channel is reduced during purging.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

An electronic circuit for driving an individual print element in a print head is disclosed. The print head comprises an array of print elements, each print element having a piezoelectric actuator that is capable of generating an acoustic wave in an ink chamber of the print element, resulting in the ejection of an ink drop out of a nozzle that is in fluid connection with the ink chamber. The electronic circuit comprises a number of analog drivers for amplifying an output current at a voltage level in-between two source voltage levels, wherein the drivers can be switched into a tristate condition at a voltage level that does not equal one of the source voltage levels.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

A method for maintenance of a print head (21) of an inkjet printer (100), the print head comprising a nozzle surface (or plate) with a plurality of ink nozzles (320) for jetting ink, wherein the method comprises the steps of purging the plurality of ink nozzles at least once, and performing a contact wipe over the nozzle surface (or plate) with a contact pressure such that the contact wipe barely touches the nozzle surface (or plate), with a wet tissue (350) comprising a wetting liquid, with vacuum pressure provided by an air pressure support unit. The invention also relates to an inkjet printer configured to execute the method.

A rigid frame for a printer is provided comprising a pair of plates bonded together, wherein a first one of the plates comprises a receiving member formed in a recess (70; 170; 170) adjacent an edge (62) of the first one of plates, the receiving member being connected to the first one of the plates via receiving member holding elements on opposite sides of the receiving member, such that such that a center of the receiving channel is positioned in a plane defined by the first one of the plates and the receiving channel extends substantially perpendicular to the respective edge (62) of the first one of the plates, wherein a second one of the plates is positioned against the respective edge (62) of the first one of the plates at a substantially right angle, such that an insertion opening is aligned with the receiving channel, and wherein a bonding member is inserted via the insertion opening into the receiving channel to hold the two plates together.

1. A guidance rail (20) for a print head carriage and a printer having a guidance rail (20) are provided. The guidance rail (20) has mounting sites (12-1, 12-2) arranged essentially in a row and configured for applying mounting elements for mounting the guidance rail (20) to a printer. At least two distances (d12, d23, d34) between any adjacent mounting sites (12-i, 12-(i+1)) are non-equal, in order to reduce the susceptibility of the guidance rail (20) to vibrations induced by movements of the print head carriage.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

A method for nesting a plurality of digital input files into a digital output file according to a predetermined nesting strategy. Each digital input file is of a same predetermined digital filetype and has a size and a user unit value which is a multiplication factor of a maximum length or height defined for the same predetermined digital filetype. The method comprises the steps of determining a size of the digital output file which is needed to accommodate the plurality of digital input files according to the predetermined nesting strategy, determining a user unit value for the digital output file which corresponds to the determined size of the digital output file, and for each digital input file scaling the digital input file with a scale factor such that the size and an aspect ratio of the digital input file is kept in the digital output file when using the user unit value which is determined for the digital output file, and placing the scaled digital input file into the digital output file. The scale factor is equal to the determined user unit value of the digital output file divided by the user unit value of the digital input file.