Image forming apparatus

Details Image forming apparatus Image forming apparatus

2011-04-19

2011-04-19

Porta, David P (Department: 2884)

Electrophotography

Control of electrophotography process

Of plural processes

C399S072000, C399S074000

Reexamination Certificate

active

07929876

ABSTRACT:
An image processing apparatus, according to the present invention can include a forming portion capable of forming a mark on a bearing member, a light projecting portion capable of irradiating a light onto the bearing member, a light receiving portion capable of receiving a reflection light from the bearing member and from the mark, and outputs a received light signal in accordance with the received light amount, a judging portion capable of judging the existence or non-existence of a mark on the bearing member based on the received light signal, an evaluating portion capable of evaluating a reflection state of the bearing member and an adjusting portion capable of adjusting a light receiving sensitivity of the light receiving portion at a time of a judgment by the judging portion, in accordance with an evaluation of the evaluating portion.

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patent: 6510297 (2003-01-01), Kawai et al.
patent: 6847791 (2005-01-01), Kitagawa et al.
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patent: 2004-093972 (2004-03-01), None
patent: 2005-181974 (2005-07-01), None
patent: 2006-276739 (2006-10-01), None
Notice for Reasons of Refusal for Japanese Patent Application No. 2006-318888; Mailing Date: Oct. 2, 2008.

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