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7621611 |
Liquid delivery device and liquid delivery method
A liquid delivery device includes a first nozzle row that has a plurality of nozzles in a predetermined direction and delivers a first liquid. A second nozzle row has a plurality of nozzles in the...
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7621610 |
Ejection control device, liquid ejecting device, liquid ejecting method, and recording medium and program used therewith
A liquid ejecting device includes an ejection pattern storage unit and a read-address shifting unit. In the ejection pattern storage unit, ejection patterns corresponding to grayscale data items,...
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7618113 |
Liquid discharge apparatus and liquid discharge method
A liquid discharge apparatus. Each of a plurality of first nozzle rows includes a plurality of nozzles disposed in a predetermined direction that discharge cyan or magenta liquid. Each of a...
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7618112 |
Recording apparatus
A recording apparatus includes a recording unit configured to record a first dot and a second dot having a diameter smaller than that of the first dot on a recording medium, and a scanning unit...
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7616340 |
Image processing method and apparatus, threshold value matrix creating method, image forming apparatus, sub-matrix creating method and program
The image processing method comprises: a recording failure position determination step of determining a recording failure position on an image corresponding to a malfunctioning recording element; a...
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7614713 |
Data processing method, data processing apparatus, mask generation method, and mask pattern
The present invention provides a mask for divided printing that completes an image by plural scans using inks of different plural inks, the mask being able to suppress possible grains during...
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7612917 |
Printing method, device, and program, computer-readable recording medium, printing device control program and method, and printing data generation device, program, and method
A printing method includes the step of printing an image of a plurality of pixels by discharging a plurality of size-varying ink droplets each representing a tone of the corresponding pixel.
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7611219 |
Ejection control of quality-enhancing ink
A printing control method of generating dot data representing a state of dot formation at each pixel in a printed image represented by an given image data, by formation of dots in respective pixels...
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7611214 |
Liquid ejecting apparatus
A liquid ejecting apparatus includes: a head having a nozzle; a pressure-changing unit for changing pressure of liquid in the nozzle in such a manner that the liquid is ejected from the nozzle; a...
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7607752 |
Misfiring print nozzle compensation
Embodiments including misfiring print nozzle compensation are disclosed.
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7604321 |
Thermal inkjet printhead with de-clog firing mode
A printhead IC comprising: an array of nozzles, each with a corresponding heater to form a vapor bubble in printing fluid that causes a drop of the printing fluid to eject through the nozzle; and,...
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7600842 |
Image reproducing and forming apparatus, printer driver and data processing apparatus
An image reproducing and forming apparatus comprises a recording head ( 14 ) configured to eject liquid droplets of at least one color and capable of bidirectional recording, and a controller ( 100...
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7591525 |
Printing apparatus, printing program, printing method, printing control device, printing control program, printing control method, and recording medium recorded with program
A printing apparatus includes a printing head that has a plurality of nozzle modules corresponding to various ink colors arranged in parallel, an abnormal nozzle specifying unit that specifies an...
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7588303 |
Head driving device, inkjet printer comprising the same, and data processing method thereof
A head driving device, an inkjet printer comprising the same and data processing method of an ink jet printer are provided, in which a nozzle driving unit turns on/off a plurality of thermal...
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7585041 |
Printing with limited types of dots
The present invention provides a printing control method of generating print data to be supplied to a print unit to print. The print unit comprises a print head having a plurality of nozzles and a...
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7585040 |
Printing apparatus and printing method
A printing apparatus divides printing elements of a printhead into blocks, time-divisionally drives the printing elements, and prints a halftone image on a printing medium in accordance with a...
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7583421 |
Print data generating apparatus, image processing apparatus, and computer usable medium therefor
A print data generating apparatus to generate print data which is used for printing in a printing apparatus based on image data is provided. The print data generating apparatus comprises a...
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7581798 |
Printing device, program for controlling printing device, method of controlling printing device, printing data creating device, program for controlling printing data and method of creating printing data
A printing device which prints an image on a printing medium by a printing head, the printing head having a plurality of nozzles for forming a dot on the printing medium, the printing device...
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7575299 |
Printing apparatus and printing method
A printing apparatus of the present invention is provided with a carry unit for carrying a medium in a carrying direction, and a print head that has a plurality of nozzle rows each made up of a...
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7571972 |
Printer with a processor having bused decoding and expansion units
A printer includes a processor, and a printhead interfaced to the processor and which is configured to print ink. The processor includes an address, data and control bus. An expander unit and a...
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7570392 |
Error diffusion method and apparatus using weighted vectors along a diagonal to correct for non-ideal ink ejection
A device including: an acquirer acquiring image data having an M-value (M≧3) pixel value; a memory storing nozzle information; another memory storing error diffusion matrices having different...
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7568776 |
Recording apparatus
A serial signal for generating a plurality of recording waveform signals is transmitted serially from a signal transmission circuit to a head river. A serial-parallel converting circuit parallely...
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7566107 |
Image forming apparatus
The image forming apparatus includes a liquid ejection head and an ejection control device. The liquid ejection head includes: a large nozzle and a small nozzle performing ejection of droplets of...
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7562957 |
Methods and apparatus for backlit and dual-sided imaging
Methods and apparatus for backlit and dual-sided imaging are described. A print head array is provided comprising first and second print heads arranged along a single print head axis. The first...
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7559624 |
Printer device and control method thereof
A printing device with at least one bi-directional scanning print head can print images on an image-receiving member in multiple traverses. After each traverse, the image-receiving member is...
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7559618 |
Scanning type inkjet image forming apparatus
A scanning type inkjet image forming apparatus. The inkjet image forming apparatus includes a printhead having at least one nozzle group having a plurality of nozzles, a driving unit to drive the...
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7556343 |
Ink-jet printing method, printing system, ink-jet printing apparatus, print data generating method, program and printer driver
Print data is generated for being printed by an ink-jet printing apparatus, which has a first mode for high-speed printing and a second mode for high-quality printing, for performing multiple-pass...
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7556332 |
Recording head and recording apparatus
A recording apparatus performs a recording operation with a recording head that includes a recording element having two types of discharge characteristics, and a memory holding k-bit information...
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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;...
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7552988 |
Determination of the combination of ink amount for realizing the specified colors
For correlating the specified colors and ink amount, the specified color data showing the color values of the specified colors are acquired, the ink amount data showing optional ink amount are...
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7549717 |
Reduction of dependence of color appearance on light source
A look up table LUT with specific gray reproduction characteristics is used for converting RGB image data to multi-tone data of ink colors. The gray reproduction characteristics of LUT are set such...
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7548347 |
Image printing apparatus and image printing method
This invention has as its object to realize multi-pass print control which requires a short processing time by a simple arrangement. To this end, a printer according to this invention attains...
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7540588 |
Method for printing data and ink jet printer using the same
A method for printing data includes the following steps. First, an ink jet printer, having a print head with a black jet and a color jet, for printing a swath of data is provided. Then, the print...
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7537303 |
Printing device, program for controlling printing device, method of controlling printing device, printing data creating device, program for controlling printing data and method of creating printing data
A printing device includes a unit acquiring first image data having pixel data corresponding to a pixel value of an M value corresponding to each color of the color image; a unit storing nozzle...
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7533951 |
Method of generating halftone print data for consecutive printhead segments including overlapping end portions
A method of generating halftone print data for overlapping end portions of a pair of consecutive printhead segments in an array of two or more printhead segments. Generally an end portion of a...
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7530655 |
Image forming apparatus and method
The image forming apparatus includes: large nozzles which eject large droplets of liquid, the large droplets being deposited onto a recording medium and forming large dots; small nozzles which...
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7524010 |
Image recording apparatus
An image recording apparatus includes an inputting unit, a half-tone processing unit, a printing unit, a correction-value storing unit, and a dot-position correcting unit. The inputting unit inputs...
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7524009 |
Image recording method and image recording apparatus
The image recording apparatus records an image by ejecting ink onto a recording medium from a print head having a plurality of nozzles while moving the print head and the recording medium...
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7524008 |
Fluid discharging device and control method therefor
A fluid discharging device includes: a head having a predetermined number of nozzle arrays in which n (n is an integral number equal to or more than 2) nozzles capable of discharging a...
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7520590 |
Inkjet recording device
An inkjet recording device having droplet ejection heads that respectively eject ink liquids of plural colors and a reaction liquid at a recording medium; a preparation section, that prepares dot...
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7520586 |
Double-sided record apparatus and double-sided record method
A double-sided record apparatus for forming images on both sides of a recording medium. The double-sided record apparatus includes: a print head that moves relatively to the record medium and...
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7520583 |
Printing device, printing program, printing method, image processing device, image processing program, image processing method, and recording medium in which the program is stored
A printing device includes: a print head having nozzles for printing different size dots; an acquirer acquiring discharge deviation characteristic information of the nozzles; an acquirer acquiring...
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7520582 |
Image forming apparatus and method
The image forming apparatus comprises: a first liquid ejection device which ejects droplets of a first liquid; a second liquid ejection device which ejects droplets of a second liquid; and a liquid...
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7518753 |
Full control multilevel error diffusion
A method for processing a digitized continuous tone image for reproducing the image by a printing device, including (a) inputting a tone value of an input pixel of the image; (b) applying a...
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7517041 |
Printing and detecting a fixer pattern on a medium
A method for printing a coordinate pattern on a medium includes assigning a pattern to the medium. The pattern is formed on the medium with fixer. A method of calculating a position of an object in...
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7517039 |
Enabling increased print speed by eliminating nozzle firing sequencing
The velocity of a printhead scanning across a sheet of paper or other print medium is varied on the basis of whether masking patterns for selectively activating nozzle of the printhead include...
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7517038 |
Adjustment of misalignments of recording positions during bi-directional printing
Misalignments of dot forming positions are adjusted by selectively using a position adjustment value for a used bi-directional print mode out of a plurality of position adjustment values that are...
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7517035 |
Printing device, printing program, printing method, image processing device, image processing program, image processing method, and recording medium in which the program is stored
A printing device for printing a plurality of dots on a medium used for printing includes: a print head having a plurality of print elements for forming dots disposed respectively in a row...
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7516699 |
Method for operating a printer which requests print density approval
A method for operating a printer for printing a print job requiring at least one color ink. At least one printer operating parameter is chosen which may include a remaining ink volume of the at...
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7513609 |
Ink-jet printer head including measurement electrode for measuring capacitance with common electrode
A measurement electrode for capacitance measurement is disposed so as to be opposed to a common electrode with a second and a third piezoelectric plates in between and to be opposed to all ink...
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