Image forming apparatus

Details Image forming apparatus Image forming apparatus

2008-02-04

2010-12-28

Gray, David M (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

C399S060000, C399S074000

Reexamination Certificate

active

07860416

ABSTRACT:
An image forming apparatus which is capable of decreasing the failure rate by improving a photocatalytic material and utilization efficiency thereof, and by decomposing substances that cannot be completely removed with a cleaning member or by not causing the substances to adhere. A light emitting unit irradiates an object to be irradiated with light. A light receiving unit receives reflected light from the irradiated object. A protection sheet containing a photocatalytic material is disposed so as to cover the light emitting unit and light receiving unit. The light emitting unit emits light of a wavelength range adapted to a bandgap width of the protection sheet, and the light receiving unit has sensitivity in a wavelength range of light emitted from the light emitting unit.

REFERENCES:
patent: 2004/0144911 (2004-07-01), Stam et al.
patent: 2005/0281574 (2005-12-01), Yamamoto et al.
patent: 2006/0199729 (2006-09-01), Naganuma et al.
patent: 5-322760 (1993-12-01), None
patent: 9-319270 (1997-12-01), None
patent: 11-347418 (1999-12-01), None
patent: 2002072612 (2002-03-01), None
patent: 2003-228201 (2003-08-01), None

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