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8882239 Method for determining maintenance unit performance  
In a method for determining a maintenance performance of a maintenance unit of an inkjet printing system, the inkjet system comprises an inkjet print head having an orifice surface, the orifice...
8845080 Multiple monochromatic print cartridge printing system and print alignment method  
A colour ink printing system includes a plurality of print head cartridges, each extending across a direction of print media propagation and spaced apart along the direction of print media...
8749840 Image forming apparatus, image processor, image processing method and computer readable medium  
An image forming apparatus includes: an image processing unit acquiring image data, performing image processing, and generating color image data for respective colors; plural toner image forming...
8724126 Printing apparatus, program, and printer driver  
A printing apparatus capable of executing color printing and monochrome printing includes: a mode controller which controls a monochrome printing mode where the monochrome printing is executed, a...
8708451 Liquid ejection apparatus  
A liquid ejection apparatus includes a head for ejecting liquid, a cap unit for sealing an ejection surface of the head, a humidified air supply mechanism for performing a humidifying operation; a...
8705124 Image forming apparatus, color-misregistration correcting method, and computer program product  
An image forming apparatus includes recording heads for ejecting recording liquids of colors onto a recording medium. The apparatus includes a reference-patch forming unit that records a reference...
8675250 Inkjet printing apparatus and calibration method  
A waiting time Ts is decided on the basis of ink type information and ink feed amount information, referring to waiting time table A (Step 6). Along with this, a dried printing paper is carried to...
8649020 Color chart  
A color chart having a plurality of mirror-image color blocks arranged in a matrix, with each color block a mirror image of an adjacent color block, each color block having rows and columns of...
8628168 Image forming apparatus and image forming method  
An image forming apparatus includes an ejection device, a suction device, and a controller. The ejection device has a first nozzle and a second nozzle to eject a first liquid and a second liquid,...
8579410 Cap design for an inkjet print head with hand-held imaging element arrangement with integrated cleaning mechanism  
The hand-held printer includes a print module configured for multidirectional printing, a print head in communication with the print module. The print head includes a plurality of nozzle arrays...
8529014 Multiple monochromatic print cartridge printing system  
A color ink printing system includes a plurality of print head cartridges, each extending across and spaced apart along a direction of print media propagation; a print head chassis for supporting...
8480198 Image forming apparatus, control method therefor, and medium storing program  
An image forming apparatus includes an ejection head having a plurality of nozzle arrays arranged in an orthogonal direction to an array direction thereof, a carriage on which the ejection head is...
8382234 Printhead maintenance system for applying foam to printhead  
A printhead maintenance system for maintaining a printhead having an ink ejection face is provided. The maintenance system comprises: (a) a foaming system for providing liquid foam on the face,...
8322816 Cap design for an inkjet print head with hand-held imaging element arrangement with integrated cleaning mechanism  
The hand-held printer includes a print module configured for multidirectional printing, a print head in communication with the print module. The print head includes a plurality of nozzle arrays...
8240810 Inkjet printer with maintenance roller mounted on chassis  
An inkjet printer has an inkjet printhead and a printhead maintenance station. The maintenance station includes a maintenance roller which is rotatable and moveable between a first position in...
8223384 Defining a print image in memory for handheld image translation devices  
Systems, apparatuses, and methods for defining an image in a handheld imaging translation device are described herein. The image may be defined as a plurality of color planes having a plurality of...
8205959 Method of maintaining printhead with cleaned pad  
A method of maintaining a printhead in an operable condition is provided in which a pad is moved between a first position in which the pad is sealingly engaged with the printhead, a second...
8169657 Registration method using sensed image marks and digital realignment  
A method of registering a print between print stages in a printing system is provided. The method comprises: printing a first part of a digital image on a substrate with a first print engine,...
8162436 Fluid discharging apparatus  
A fluid discharging apparatus including a head that has a nozzle which discharges fluid from the nozzle and a sheet shaped wiping member for wiping a nozzle surface of the head. The wiping member...
8157348 Print head servicing for a page wide array printer  
A page wide array printer comprises a print head bar which carries an array of print nozzles, and which is static during a printing operation. A carriage has print head service elements. The print...
8149456 Color processing method and image forming apparatus for creating a color separation table  
Restriction information on a total colorant amount for a medium is obtained. Patches at grid points in a color space corresponding to a plurality of colorants at which the total colorant amount...
8147020 Ink-jet recording method  
An ink-jet recording method is provided. The ink-jet recording method includes (i) supplying an aqueous treatment liquid containing a fixing agent for fixing the components contained in an aqueous...
8139266 Color printing control device, color printing control method, and computer readable recording medium stored with color printing control program  
The color printing control device outputs color material reduction processed data generated by applying a color material reduction process to each pixel of bitmaps converted to color material...
8139245 Managing the processing of print data at printing devices based upon available consumable resources  
An approach is provided for managing the processing of print data at a printing device based upon available consumable resources. A printing device includes a print process configured to determine...
8128192 Cap design for an inkjet print head with hand-held imaging element arrangement with integrated cleaning mechanism  
The hand-held printer includes a print module configured for multidirectional printing, a print head in communication with the print module. The print head includes a plurality of nozzle arrays...
8118393 Method of removing foreign particulates from pagewidth printhead  
A method of removing foreign particulates from an ink ejection face of a pagewidth printhead mounted on a substrate. The substrate has a film guide positioned adjacent the printhead. The method...
8094165 Color reproduction evaluation apparatus and program storage medium  
An evaluation apparatus includes an image reproduction section, which obtains a reproduction image by reproducing an original image with a plurality of color elements visually mixed for defining...
8083311 Ink-jet printing apparatus, control method therefor, program, and storage medium  
An object of this invention is to prevent prolongation of the time taken for a suction recovery operation while suppressing wasteful consumption of ink in the suction recovery operation. An...
7832831 Method for controlling liquid ejection apparatus and liquid ejection apparatus  
A printer includes a recording head having a nozzle that ejects ink and a suction pump that draws the ink through the nozzle. A valve unit and a filter are arranged in a passage that supplies the...
7823997 Droplet ejection device  
A droplet ejection device includes a carriage capable of moving back and forth, a droplet ejection head which is mounted on the carriage and has a plurality of nozzles, and a droplet receiver...
7806505 Mobile telecommunications device with printhead capper and controlled media drive  
A mobile telecommunications device is provided which has a printhead with an array of nozzles for printing a media substrate, a capper assembly movable between a capped position covering the...
7407252 Area based optical proximity correction in raster scan printing  
Methods and apparatus for correcting defects, such as rounded corners and line end shortening, in patterns formed via lithography are provided. Such defects are compensated for...
7384120 Inkjet recording method and inkjet recording apparatus  
The inkjet recording apparatus has a recording head including: large nozzles which eject ink containing pigment particles serving as a coloring material; small nozzles which eject the ink; and a...
7381444 Color filter manufacturing method and apparatus, ink-jet device, color filter, display device, and apparatus having display device  
A color filter manufacturing apparatus of this invention includes a plurality of ink-jet heads (120a, 120b, 120c) each having a first ink discharging nozzle group (108) in which the pitch of a...
7287825 Preliminary ejection method and ink jet printing apparatus  
In an ink jet printer in which preliminary ejection is performed onto printing paper, unnecessary ink consumption due to the preliminary ejection is suppressed. More specifically, the paper...
7178897 Method for removing liquid in the gap of a printhead  
A method for removing liquid in a gap of an ink jet printhead comprising a drop generator, with an outlet valve, orifice plate and charge plate, wherein a cross flush valve is additionally used to...
7147298 System and methods for providing an organic electroluminescent device  
The present invention provides a liquid drop discharge apparatus capable of flushing in which the adverse effect on film deposition and patterning and the contamination of the apparatus are...
7047642 Process for producing ink jet recording head  
An ink jet recording head and a process for producing the same, and an ink jet recording apparatus are provided that improve the printing performance and also improve the production efficiency. A...
6938979 Method for selecting a servicing routine for servicing of an inkjet print head using date-time-stamp technique  
A method for selecting a servicing routine for servicing of an inkjet print head of an inkjet printer comprises the steps of receiving a first print job with a first time information representing...
6805440 Printing up to print medium edges without platen soiling  
An object of the present invention is to allow images to be printing all the way to the edge portions of printing paper without depositing ink drops on the platen. Cyan (C), magenta (M), and...
6789870 Drop quantity calibration method and system  
A method and system for calibrating a device having a first fluid source that ejects a first drop quantity and a second fluid source that ejects a second drop quantity by, for example, printing a...
6742858 Label printer-cutter with mutually exclusive printing and cutting operations  
A label printer-cutter includes a frame and a print head assembly connected to the frame. The print head assembly includes a print head for printing to a label media. The label printer-cutter...
6736478 Automatic image quality determination  
The invention relates to a process for automatically determining the image quality of inkjet photo printers or color inkjet photo printers, whereby a digital reference test chart is produced which...
6702422 Ink jet color recording apparatus and method for recovering ink jet nozzle  
The invention provides an ink jet color recording apparatus capable of forming a good image by preventing solidification of ink. The ink jet color recording apparatus has a recovery step of...
6677959 Virtual true color light amplification  
A method is provided for enhancing a digital image without distortion of the color. The result is an adjusted image which preserves the essential color of each and every dot in the input digital...
6568789 Print head maintenance device used in a printing device  
A print head maintenance device is used in a printing device. The print head maintenance device cleans a print head of the printing device. The print head is movable on a horizontal track of the...
6565186 Ink jet head, ink jet apparatus and method of recoverably activating in the apparatus  
To reduce a quantity of uselessly consumed ink when an ink jet head is recoverably activated, the capacity of an ink path communicated with a group of ejecting ports having a small flow rate...
6545773 Compensation for print-direction induced hue shift using depletion  
Color printheads in a color inkjet printer are in a fixed order in the scanning carriage, which causes the colors to be printed in a different order when the carriage is scanned in an opposite...
6536866 Ink jet recovery system having variable recovery  
An ink jet recording system includes a recovery device for maintaining and recovering performance of discharge from a plurality of discharge ports for discharging a plurality of different inks for...
6527361 Refreshing and recovering ink discharge in a multi-color ink jet recording apparatus  
This ink jet recording apparatus makes it possible to reduce the requisite number of times that preliminary ejection is performed for the purpose of ejection recovery through suction, which must...

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