Electrophotography – Control of electrophotography process – Control of exposure
Reexamination Certificate
2007-08-28
2011-10-04
Gray, David (Department: 2852)
Electrophotography
Control of electrophotography process
Control of exposure
Reexamination Certificate
active
08032041
ABSTRACT:
A pair of registration rollers are provided upstream in a paper transport path from an image forming position, and a paper transport position detection portion is provided upstream in the paper transport path from the pair of registration rollers. When consecutive print processing on a plurality of sheets of paper is performed, a paper transport position in the paper transport path is detected by the paper transport position detection portion for a sheet of paper that has been set in advance among the plurality of sheets of paper. A correction amount of a position for image writing to a photosensitive drum is determined based on the paper transport position, and correction of the image writing position is performed based on the correction amount. Image forming on the sheet of paper is performed at the image forming position based on the image writing position after correction, and image forming on other sheets of paper after the sheet of paper that was set in advance is performed at the image forming position based on the image writing position after correction.
REFERENCES:
patent: 6799761 (2004-10-01), Kato
patent: 6987709 (2006-01-01), Phillips
patent: 2001/0053300 (2001-12-01), Endo et al.
patent: 09219776 (1997-08-01), None
patent: 2002-014500 (2002-01-01), None
patent: 2003248410 (2003-09-01), None
patent: 2003-330334 (2003-11-01), None
patent: 2004-90284 (2004-03-01), None
Machine Translation of JP 09219776 A.
Atsumi Hidetoshi
Fujii Shuhji
Inoue Tatsuya
Miyoshi Fuminori
Nakazawa Shinji
Birch & Stewart Kolasch & Birch, LLP
Curran Gregory H
Gray David
Sharp Kabushiki Kaisha
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