Light-emitting element head, light-emitting element chip, image forming apparatus and signal supply method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8194111
APP PUB NO 20100118108A1
SERIAL NO

12427913

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The light-emitting element head is provided with: plural light-emitting element chips in each of which light-emitting elements are arrayed in a line; a lighting signal supply unit supplying lighting signals for setting whether or not the light-emitting elements emit light, each of the lighting signals being provided in common to the light-emitting element chips that belong to one of N groups into which the plural light-emitting element chips are divided, where N is an integer of 2 or more; and a clock signal supply unit supplying a first clock signal as a transfer signal for causing the light-emitting elements to sequentially emit light, and second clock signals for setting the light-emitting elements ready to emit light, the second clock signals being different from one another, being supplied to the respective light-emitting element chips belonging to the one of the N groups, and being supplied in common across the N groups.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FUJI XEROX CO., LTD.TOKYO7746

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ohno, Seiji Tokyo, JP 64 323

Cited Art Landscape

Patent Info (Count) # Cites Year
 
FUJI XEROX CO., LTD. (3)
* 7954917 Exposure device, exposure system, light-emitting element circuit board and image forming apparatus 9 2007
* 8098271 Exposure device, light-emitting device, image forming apparatus and failure diagnosing method 3 2009
* 8004550 Light-emitting element head, image forming apparatus and signal supply method 1 2009
 
OKI DATA CORPORATION (2)
* 6559879 LED array head, circuit board, and LED array chip 16 1999
* 7990407 Drive circuit, light print head, and image forming apparatus 4 2009
 
KYOCERA CORPORATION (1)
* 2011/0164,103 Light Emitting Element Array, Light Emitting Device, and Image Forming Apparatus 5 2007
 
KYOCERA MITA CORPORATION (1)
* 2010/0177,155 Light Emitting Element Array, Light Emitting Device, and Image Forming Apparatus 5 2008
 
CANON KABUSHIKI KAISHA (1)
5969744 Recording head and image forming apparatus using the same 15 1997
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
S-PRINTING SOLUTION CO., LTD. (1)
9417552 Light-emitting element array module and method of controlling light-emitting element array chips 1 2014
* Cited By Examiner

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