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6902247 Multi-resolution printing method and printing device  
A method and apparatus of printing an image onto a medium uses a system having an elongate printhead with an array of marking elements including at least one distinctive group. The marking elements...
6902251 Inkjet printing device  
A printing device includes a sheet feeding mechanism that feeds the recording sheet by a predetermined amount at a time, a carriage that is movable, substantially at a constant speed, in a...
6896356 Print apparatus and printing method for forming a color image by applying different color inks to a printing material using a recording head  
A printing apparatus for forming a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the cording material, the apparatus...
6896348 Ink jet printing apparatus, ink jet printing method, program, and printing medium  
The print head is scanned over a printing medium in a sub-scanning direction different from a direction in which the nozzles are arranged. The printing medium is conveyed by a predetermined amount...
6895395 Postal printing device with facilitated reading  
This invention relates to an inkjet printing device of a franking machine intended to print postal indicia on a mail piece to be franked, displaced with respect to this device in a direction of...
6890060 Recording head driving method, recording head, ink-jet printer  
An ink jet printer has a line head having heating elements ( 121 d ) for ejecting ink droplets from nozzles, in which the plurality of heating elements ( 121 d ) are arrayed in a direction...
6886911 Apparatus for and method of compensating for image quality of inkjet printer  
A method of compensating for image quality of an inkjet printer includes selecting one of combinations of a plurality of shingling modes controlling shingling characteristics of image data and a...
6874864 Ink jet printing apparatus and ink jet printing method for forming an image on a print medium  
An apparatus and method are provided to enable high speed printing of an image with high resolution while suppressing degradation of image quality due to white stripes and density variations. In an...
6866360 Printer and a method of printing  
A printer comprises a scan axis ( 14 ) arranged to receive at least one pen ( 10 ), each pen comprising an array of ink ejection elements ( 20,22 ) adapted to print a swath on a printing medium....
6863372 Printer device and method  
A method of printing an image with an inkjet printer system, said system comprising a printhead arranged to print swaths of image content parallel to a first axis on a print medium, said swaths...
6863361 Method to correct for malfunctioning ink ejection elements in a single pass print mode  
Described is a method which corrects for malfunctioning or inoperable ink ejection elements in a one-pass printmode. The method comprises obtaining the standard printmask; identifying the ink...
6863371 Image recording apparatus for recording an image on a recording medium  
An image recording apparatus records an image on a recording medium by causing a recording head having an arrangement of a plurality of recording elements to conduct its main scanning for the...
6860586 Image forming apparatus of ink-jet type and image forming method of ink-jet type  
An image forming apparatus of an ink-jet type of the present invention is provided with an ink head section having a carriage that is composed of a plurality of ink head and scans so as to print....
6857725 Printing up to edges of printing medium without platen soiling  
The printing is performed to the edges of printing paper without depositing ink drops on the platen. The platen 26 of the printer of the present invention comprises, in order from the upstream...
6857723 Method, printer and printhead driver for printing using two printheads  
A first method obtains a printer having a single-printhead horizontal resolution of H dpi. Dots are printed using first and second printheads in the same print pass. The first printhead is enabled...
6851792 Multiple-pass approach to fluid ejection over media swath in one pass  
A method of one embodiment of the invention is disclosed that ejects fluid over a current swath of media in one pass by a first fluid-ejection component, according to a first intended pass of a...
6846064 Recording head and recording apparatus having recording head  
A recording head includes a first ejection outlet array having a plurality of ejection outlets for ejecting liquid; a second ejection outlet array having a plurality of ejection outlets for...
6843546 Draft printing with multiple same-hue ink nozzles  
To perform printing in a predetermined fast printing mode, the same-hue nozzle groups ejecting dark/light inks of each hue are each directed to form ink dots on mutually different main scan lines....
6837559 Printing apparatus, printing medium, memory, computer-readable medium, printing system, and printing method  
A printing apparatus and the like that enable printing according to an interlace mode that matches the characteristics of a printing medium set to the printing apparatus are realized. A printing...
6837569 Shingling algorithms for edge printing and printer using the same  
Shingling method and apparatus for front and back edge printing in a printing apparatus include a line feeding motor rotating step by step according to a shingling mode that appropriately varies...
6834586 Lithographic method and lithographic device, plate making method and plate making device, and ink jet printing method and printing device  
An on-press recording type lithographic printing method comprising mounting a plate material on a plate cylinder of a press, ejecting an oil-based ink onto the plate material from a recording head...
6834932 Nozzle misalignment compensation in a drop on demand printhead  
A method and apparatus is provided for compensating for variable overlap between segments of a page width print head system to reduce visually perceptible artifacts due to misalignment of adjacent...
6830313 Information processing apparatus, printing apparatus and system, methods of controlling same, and program for said methods  
Based upon a designated printing mode of a printer, a raster-data creation unit or a direct-data (or column-data) creation unit creates raster data, which corresponds to a print raster, or direct...
6817697 Systems and methods for printhead architecture hardware formatting  
The present invention is directed to systems and methods for formatting hardware for a printhead, for use in a printing device. The systems and methods of the present invention can support the...
6805421 Method and device for aligning print heads  
The invention relates to a method and a device for aligning print heads ( 5 ) in relation to continuous printed material. According to the invention, to align the print heads ( 5 ) in relation to...
6805422 Ink jet recording method, recording apparatus and data processing method  
An ink jet recording apparatus for effecting recording on a recording material by ejecting ink with relative scanning movement between a recording head and the recording material, the ink jet...
6799823 Removal or mitigation of artifacts in incremental printing  
One aspect of the invention lowers boundary artifacts by depleting selectively at a boundary, only in high-color-saturation areas. In another aspect, printmasking defines depletion regions. In yet...
6793321 Print control apparatus, print control method, and medium storing print control program  
Printing with one nozzle is liable to cause banding, whereas printing with more than one nozzle to prevent banding is slow in printing speed. The print control apparatus performs the image judging...
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...
6786569 Printing methods and apparatus for reducing banding due to paper transport  
A dot matrix printing method is provided for printing an image on a printing medium with reduced banding, by moving, with respect to the medium, a printing head in a fast scan direction during a...
6779872 Ink jet recording method and ink jet recording apparatus  
Two lines extending in the main scanning direction build a set of lines (L 1 , L 2 ) each of which is formed by a plurality of dots. Assignment is alternately executed to preceding scanning and...
6779873 Ink jet printing apparatus and method  
The present invention provides a method of printing a high quality color image with no color variations at high speed. For this purpose, this invention arranges in a main scan direction a plurality...
6769759 Printing with selection of sub-scanning  
An object of the present invention is to provide a technique that makes it possible to improve the image quality by selecting adequate paper feedings in a printer that performs printing. First, a...
6764162 Shingle masks that reduce banding effect on ink jet printers  
An improved shingle mask is provided for use on ink jet printers which use multi-pass printing (shingling) to form bitmap images. The shingle mask is derived from a shingle mask density...
6764154 Ink-jet printing apparatus and ink-jet printing method  
An ink-jet printing apparatus and an ink-jet printing method allow the printing of an image with high quality without causing a change in ink color formed on the printing medium while keeping the...
6755507 Color printing using a vertical nozzle array head  
A printer has a print head including a plurality of dot formation element groups for forming dots of different inks where the plurality of dot formation element groups are arrayed in a prescribed...
6749284 Image processing method, printing system and printing apparatus  
When a printing apparatus performs printing using dark and light inks, a large variation in density caused by a rapid decrease in ink applying rate is prevented, thereby enabling proper density...
6742866 Ink jet print head having offset nozzle arrays  
An ink jet printing apparatus forms a printed image on a print medium based on image data. The apparatus includes an ink jet print head having ink ejection nozzles in a nozzle array. Ink is ejected...
6729710 Ink jet recording apparatus and method with reduced banding  
An ink jet recording apparatus for effecting recording on a recording material by ejecting ink through a plurality of ejection outlets in units of band with relative scanning movement between a...
6719391 Ink jet recording apparatus and ink jet recording method  
Of a band border portion which is an area where a black stripe might occur, in an area near a band border portion adjacent to an unrecorded area, recording density is reduced only when the...
6698861 Spot size noise to minimize stitch error perception  
In a technique for obscuring the stitch error perceived the eye of a viewer, a first plurality of drops of fluid are ejected in a first firing sequence at a medium in a first swath from a print...
6695432 Ink-jet recording apparatus performing multi-pass recording, and ink-jet recording method  
The present invention provides an ink-jet recording method that allows a time for ink to penetrate into the recording medium and to be fixed thereto, and prevents density irregularity, color...
6695433 Non-uniform overlapping printing  
A printing method drives each of the n(j) number of nozzles to enable the nozzle to form dots intermittently at a rate of one in m×q dot positions on the j-th main scan line during one main scan,...
6688726 System and method for producing print masks to eliminate step advance and swath height error banding  
The present invention is embodied in a system and method for producing print masks to eliminate step advance and swath height error banding. In general, a print mask is probabilistically produced...
6688727 Printer for switching sub-scan feed at dot recording area and blank area  
Dot recording areas Rr 1 , Rr 2 , Rr 3 in which dots are to be formed, and blank areas Rb 1 , Rb 2 in which dots are not formed exist on the printing paper. When the recording of dots in dot...
6682172 Method and apparatus for maintaining colour sequence when printing  
An elongate print head with a longitudinal axis is provided, which comprises at least a first array of marking elements and a second array of marking elements for printing different colours. Each...
6679583 Fast mutually interstitial printing  
A dot matrix printing method is provided for printing an image on a printing medium with a printing head ( 10 ) having a contiguous set of equally spaced marking elements ( 11 ). The marking...
6676239 Method and apparatus for use in inkjet printing for reducing thermal accumulation during inkjet printing  
A method and apparatus for use in inkjet printing. The apparatus includes a memory, a heat accumulation calculation device, and an image separating device. The memory is used to store a heat...
6672701 Determining adjustment value for recording position deviation at printing using a plurality of kinds of inspecting patterns  
Determination of an adjustment value for adjusting the shifting of recording positions is made easier. The adjustment value is one for adjusting the shifting of recording positions in the direction...
6669318 Image recording apparatus, image recording control method, and storage medium  
As a thinning pattern which is used in a multipass recording method, plural mask patterns are created according to a printing mode from a pseudo periodic mask arrangement that an arrangement of...