Surface potential detecting device of image forming apparatus

Details Surface potential detecting device of image forming apparatus Surface potential detecting device of image forming apparatus

2008-09-08

2011-11-01

Gray, David (Department: 2852)

Electrophotography

Control of electrophotography process

Electrometer detail

C399S090000

Reexamination Certificate

active

08050585

ABSTRACT:
In an embodiment of the invention, a metal shield case and a metal shutter are electrically conducted to each other by using a contact part and are made to have the same potential. By this, the shutter does not electrically exert a bad influence on detection accuracy of a surface potential sensor, the closing performance of the shutter is improved, and the miniaturization or reduction in cost of the surface potential sensor can be realized.

REFERENCES:
patent: 4720682 (1988-01-01), Ikushima et al.
patent: 2007/0297830 (2007-12-01), Kosuge
patent: 63083743 (1988-04-01), None

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