Image forming apparatus with transfer member and parallel circui

Details Image forming apparatus with transfer member and parallel circui Image forming apparatus with transfer member and parallel circui

1996-05-16

1997-12-23

Beatty, Robert

Electrophotography

Image formation

Transfer

399314, G03G 1516

Patent

active

057015694

ABSTRACT:
An image forming apparatus having a toner image carrying member which carries a toner image, an intermediate transfer member or sheet transport type transfer member opposite to the toner image carrying member, a charging device which charges the transfer member for transferring the toner image from the toner image carrying member to the intermediate transfer member or carried sheet, a grounding electrode which contacts the transfer member, an ammeter which measures an electric current through the grounding electrode, and a control device which controls the charging device based on a measured value of the ammeter so as to stabilize said measured value. A power source is connected to the charging device through a resistance and the grounding electrode is in parallel with circuit from the resistance to the toner image carrying member.

REFERENCES:
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patent: 4977430 (1990-12-01), Florack et al.
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patent: 5291253 (1994-03-01), Kumasaka et al.
patent: 5300984 (1994-04-01), Fuma et al.
patent: 5386274 (1995-01-01), Sanpe et al.
patent: 5461461 (1995-10-01), Harasawa et al.
patent: 5495317 (1996-02-01), Matsuda et al.

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