Image forming apparatus configured to determine the position...

Details Image forming apparatus configured to determine the position... Image forming apparatus configured to determine the position...

2007-07-19

2010-12-07

Royer, William J (Department: 2852)

Electrophotography

Diagnostics

Component present or mounted

C399S121000

Reexamination Certificate

active

07848663

ABSTRACT:
One embodiment of the present invention can include an image forming apparatus having an image carrier, a light emitting portion capable of emitting a light towards a predetermined position, a light receiving portion capable of detecting a light amount of incident light from the predetermined position, a light emission control portion capable of changing an outgoing light amount of the light emitting portion, and a determining portion capable of determining whether or not the image carrier is disposed in the predetermined position based on a change in detected light amounts at the light receiving portion including a change in the outgoing light amount of the light emitting portion.

REFERENCES:
patent: 7171132 (2007-01-01), Yabuki et al.
patent: 7454158 (2008-11-01), Nakano et al.
patent: 2001-215857 (2001-08-01), None
patent: 2002-328571 (2002-11-01), None
patent: 2005-164645 (2005-06-01), None

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