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7625053 Ink jet recording apparatus  
An ink jet recording apparatus comprises an ink jet recording head in which a volume of a pressure chamber is caused to vary by deflecting actuators according to drive signals applied between an...
7614710 Vent seal  
One embodiment of a vent seal includes a vent that defines a vent channel and a seal positioned within the channel in both a closed vent condition and in an open vent condition.
7611218 Inkjet printhead that prints keep-wet dots to avoid clogging  
An inkjet printhead with a plurality of nozzles, a heater element adjacent each of the nozzles respectively for heating an ejectable liquid to form a gas bubble that causes the ejection of a drop...
7600835 Ink tank, printing apparatus and monitoring system for used-ink amount  
Information can be provided for determining the current states of an ink tank and a printing apparatus within a range exceeding a standard amount of the ink in the ink tank to be controlled as an...
7599096 Tint adjustment for monochrome image printing  
On the basis of a standard one-dimensional LUT 412 , a plurality of one-dimensional LUTs 413 having mutually different tones are generated. Next, a plurality of monochrome sample images are...
7575301 Image forming apparatus and image forming method  
The image forming apparatus comprises: an ejection head which ejects droplets having electro rheological effects onto a recording medium; a holding device which holds the recording medium, the...
7559615 Inkjet device and method  
In an inkjet device for containing, degassing and supplying ink, gas is supplied to a container for the ink so that the gas bubbles through the ink in the container. A controller controls a gas...
7554697 Image forming apparatus, image forming method, and image forming program  
An image forming apparatus, for forming an image with using distributions of two or more types of dots having different densities per unit area in a same hue, including: a threshold value matrix;...
7543899 Inkjet recording apparatus and liquid application method  
An inkjet recording apparatus which forms images on a recording medium by combining at least two types of liquid comprising: a first application device which applies a first liquid to the recording...
7517033 Ink supply control apparatus, ink jet printer and method of controlling ink supply  
An ink supply control apparatus includes: a driver, operable to drive a selector provided between a recording head and an ink tank to control an ink supply from the ink tank to the recording head;...
7510275 Image forming apparatus and image forming method  
A disclosed image forming apparatus includes: an input unit to input image data; a conversion unit to convert the image data to conversion data on a plurality of colors for forming an image on a...
7500729 Method for correcting an amount of ejected ink in line head inkjet printer  
A method for correcting an amount of ejected ink in a line head inkjet printer, includes measuring an amount of ink ejected from each block including at least one nozzle, nozzles formed in an...
7490917 Dot apportionment table switching printer  
The table 200 represents that only small dots should be formed in the range Cd 1 of relatively small tone values. In the range Cd 2 , the production rate of small dots gradually decreases, while...
7478023 Coupled algorithms for viscoelastic ink-jet simulations  
Two finite difference algorithms on rectangular grids are provided for viscoelastic ink ejection simulations. The first algorithm is first-order accurate in time, while the second algorithm is...
7455377 Printer having adjustable ink delivery system pressure  
An ink delivery system for a printer includes an ink reservoir, a printhead assembly, a pump configured to provide ink from the ink reservoir to the printhead assembly at a selected pressure, and a...
7440135 Determining method for lattice point for correspondence definition data creation and image processor  
It used to be difficult to determine representative colors which allow color conversion with accuracy throughout color spaces without occurrences of local tone jump. An ink quantity lattice point...
7440099 Droplets detecting system  
A droplets detecting system ( 100 ) includes a laser diode assembly ( 20 ), a photo diode ( 30 ), a light source ( 40 ), a charge coupled device camera ( 50 ), a signal processing and displaying...
7434899 Inkjet recording method and inkjet recording ink for that method  
An inkjet recording method including the steps of: ejecting an ink having viscosity from 5 to 20 mPa·s from a nozzle of an inkjet head toward a recording medium; forming a main droplet and at...
7431439 Liquid supply device and recording apparatus incorporating the same  
In a device for supplying liquid from a liquid cartridge to a liquid ejection head via a liquid supply channel, a cartridge chamber accommodates the liquid cartridge. A valve is disposed between...
7431416 Apparatus for jetting an alignment agent  
An apparatus for jetting an alignment agent includes a jetting head having a jetting hole, an alignment agent externally provided onto a substrate and a viscosity controlling part controlling a...
7419235 Liquid ejecting method and apparatus therefor  
A liquid ejecting method can eject liquid from a liquid ejecting head, the liquid ejecting head including a liquid chamber for storing liquid to be ejected, an ejection outlet in fluid...
7410240 Inkjet recording head and inkjet recording apparatus  
An inkjet recording head including first and second supply paths. The first supply path supplies ink to the pressure chamber. The second supply path supplies ink to the porous member. Also included...
7408676 Ink jet printing with switched use of particular color ink depending on number of print head passes corresponding to print quality and speed  
When three primary color inks and a particular color ink having a hue different from those of the three colors are used, the number of passes with regard to the same printing area is changeable,...
7394564 Printing machine with a control unit that displays a plurality of key operation switches to control ink keys  
In an initial state, a key control switch for adjusting opening degrees of ink keys and a display changeover switch are displayed on a display screen of a touch sensitive control panel. The key...
7384205 Print control apparatus and print control method  
The present invention operates in a printing apparatus capable of carrying out printing by switching between a mode using a set of toners for four colors Y, M, C, and K and a mode using a set of...
7374280 Image forming apparatus and method  
The image forming apparatus comprises: an ink ejection device which ejects droplets of a radiation-curable ink onto a recording medium; a conveyance device which causes the ink ejection device and...
7370923 Inkjet printer  
Installed are intermediate tank 12 with damping function against pressure fluctuation for temporarily storing ink in a position within ink supplying pipe 9 a which supplies ink from main tank ...
7370922 Ink jet recording apparatus and control method thereof  
Negative pressure applying means for generating a meniscus in a nozzle hole through a balance with a negative pressure applied to an ink chamber via a restrictor part; pressurizing means for...
7369269 Print toner density mode/print media default link  
A method for automatically selecting a print job parameter including the steps of ascertaining a first print job parameter and automatically selecting a second print job parameter based upon the...
7365874 Printer for authenticating a replaceable ink cartridge  
A printer is provided for authenticating a replaceable ink cartridge. The printer includes a processor. The replaceable ink cartridge can be releasably coupled to the processor and includes a first...
7360882 Ink-jet recording apparatus, method of removing air of ink-jet recording apparatus and removing air device  
An air removing device is connected to a tank to contain ink through a first supply tube, and an ink-jet head is connected to the air removing device through a second supply tube. The first supply...
7357478 Liquid ejection apparatus and method for controlling liquid ejection apparatus  
An air pressurization pump is driven to apply pressurized air pressure to a main tank storing ink. The pressurized air causes the ink to be supplied from the main tank to a recording head arranged...
7347520 Inkjet printing apparatus and information processing method  
Ink viscosity information of an inkjet printing apparatus can be provided at low cost in small space. The inkjet printing apparatus performs image printing by using a printhead with a plurality of...
7344235 Ink composition for ink jet recording, ink cartridge, nozzle plate for ink jet recording, ink jet head, and recording apparatus  
An ink composition is produced using a water-soluble substance that undergoes condensation polymerization in the absence of water (e.g., a hydrolyzable silane compound), which includes fluoroalkyl...
7344213 Method and system for calculating ink residue and ink container  
The Abstract as it appears in the enclosed English language translation is the more accurate and faithful translation of the original Abstract as it was filed in the PCT International application,...
7334886 Bulk ink delivery system for ink jet printers and the like  
A bulk ink delivery system for ink jet printers and the like includes one or more cartridge housings which conform to the shape of a manufacturer's standard, ink-filled cartridge so that the...
7334880 Method of driving a droplet jetting head  
A method of driving a droplet jetting head comprising nozzle orifices to jet droplets, pressure generating chambers each of which can store liquid and communicate with one of the orifices, and...
7322757 Inkjet printer having associated printhead, control and memory modules  
An inkjet printer is provided comprising printhead modules, physically and logically distinct control modules, and logically distinct memory modules. Each printhead module prints a different...
7320509 Inkjet apparatus  
An inkjet apparatus 100 includes a plurality of nozzles 200 , a plurality of piezoelectric elements 204 , a drive voltage generator 406 and a plurality of switches 403 . The plurality of...
7318636 Method for forming correction pattern, liquid ejecting apparatus, and correction pattern  
A correction-pattern forming method, for example, for forming a correction pattern with which it is possible to precisely correct discrepancies between dot formation positions in the moving...
7316465 Liquid discharge apparatus and inkjet recording apparatus  
The liquid discharge apparatus discharges liquid from an orifice of a nozzle portion, and comprises: a nozzle-portion heating device which heats the nozzle portion; and a nozzle heating control...
7311368 Printing apparatus, printing method and program  
Printing of an image onto a printing medium is effected such that applied ink materials do not rub off. In the event of a printing mode in which the surface printed with an image is subject to...
7296869 Ink jet recording head and ink jet recording apparatus  
An ink jet recording head having a recording element substrate including three or more discharge port arrays comprising a plurality of discharge ports and recording elements for discharging ink...
7293849 Ink jet recording apparatus and ink jet recording method  
An ink jet recording apparatus is provided with a recording head that ejects ink droplets, an ink tank that supplies ink to the recording head, a waste ink recovering mechanism that recovers ink...
7284806 Ink-jet recording apparatus and method of introducing ink in the same  
A method of introducing ink in an ink-jet recording apparatus including an ink-jet printing head which ejects, to a recording medium, the ink through nozzles thereof, the method including the steps...
7255417 Calibration of ink ejection amount for a printer  
An ink ejection amount error is acquired for each of a plurality of same ink nozzle arrays for ejecting same ink. Line sets consisting of N adjacent main scan lines are classified into a plurality...
7216946 Ink feeding rate control method and data correcting method for a printing machine  
An ink feeding rate control method for a printing machine includes a step of determining, from image data used in recording images, an average of image area ratios of images in areas on prints...
7210755 Solid semiconductor element, ink tank, ink jet recording apparatus provided with ink tank, liquid information acquiring method and liquid physical property change discriminating method  
There is disclosed a solid semiconductor element which very efficiently detects information about a liquid and bidirectionally exchanges the information with the outside. The solid semiconductor...
7210754 Image recording apparatus and method  
The image recording apparatus comprises: a full-line recording head in which a plurality of image-recording elements are arrayed across a length corresponding to an entire width of a printing...
7210753 Inkjet printing using protective ink  
A method of determining and applying a protective ink amount to be printed in addition to a plurality of colored ink amounts to make colored pixels in an image including determining the protective...
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