Image forming apparatus, image forming method, and computer...

Details Image forming apparatus, image forming method, and computer... Image forming apparatus, image forming method, and computer...

2009-03-25

2011-10-18

Tran, Hoan (Department: 2884)

Electrophotography

Control of electrophotography process

Responsive to number of copies or passage of time

C399S049000, C399S072000

Reexamination Certificate

active

08041238

ABSTRACT:
A patch-pattern forming unit causes an image forming unit to form a patch pattern including a plurality of patches on a conveying member. A detecting unit detects the patch pattern formed on the conveying member. An adjusting unit adjusts an image forming condition of the image forming unit based on a result of detection by the detecting unit. The patch pattern has a length substantially equal to a distance between a patch-pattern start position, which is located at a space corresponding to at least a predetermined margin of a recording medium from a position of the image, and a position of the detecting unit.

REFERENCES:
patent: 7610004 (2009-10-01), Kato et al.
patent: 7952774 (2011-05-01), Ikeda
patent: 2003/0138261 (2003-07-01), Tezuka et al.
patent: 2007/0242986 (2007-10-01), Matsuyama et al.
patent: 2008/0038004 (2008-02-01), Inoue
patent: 2008/0279599 (2008-11-01), Nagatsuka
patent: 2007-133356 (2007-05-01), None

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