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Inkjet printing apparatus using print head with overlapping nozzle arrays

US8960834B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8960834-B2
Application numberUS-201113247309-A
CountryUS
Kind codeB2
Filing dateSep 28, 2011
Priority dateOct 5, 2010
Publication dateFeb 24, 2015
Grant dateFeb 24, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The memory size and processing time for the correction of image data carried out to reduce image deterioration caused by nozzle ejection characteristic variation in an inkjet printing apparatus can be minimized. Print heads are provided with pluralities of chips that have nozzle arrays formed from a plurality of nozzles. Overlap portions and non-overlap portions are formed on each chip. An image processing apparatus sets input image data, corresponding to nozzle regions that are defined in nozzle arrays along the alignment direction of the nozzles of the print head and that are composed of a plurality of nozzles, as processing blocks. The input image data is processed according to parameters defined for each of those processing blocks. The boundaries of the nozzle regions corresponding to the input image data of the processing blocks are established according to the boundaries of the overlap portions and the non-overlap portions.

First claim

Opening claim text (preview).

What is claimed is: 1. An inkjet printing apparatus that prints images on a print medium by ejecting ink from nozzles based on print data generated in response to input image data, said inkjet printing apparatus comprising: at least one print head that is provided with a plurality of chips, said plurality of chips each having at least one nozzle array comprising a plurality of nozzles that eject ink, the nozzle array of each chip having an overlap portion and a non-overlap portion…

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Frequently asked questions

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What does patent US8960834B2 cover?
The memory size and processing time for the correction of image data carried out to reduce image deterioration caused by nozzle ejection characteristic variation in an inkjet printing apparatus can be minimized. Print heads are provided with pluralities of chips that have nozzle arrays formed from a plurality of nozzles. Overlap portions and non-overlap portions are formed on each chip. An imag…
Who is the assignee on this patent?
Goto Fumitaka, Miyake Nobutaka, Ikeda Tohru, and 7 more
What technology area does this patent fall under?
Primary CPC classification B41J2/2146. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).