Image forming apparatus

Details Image forming apparatus Image forming apparatus

2009-02-17

2011-11-01

Tran, Hoan (Department: 2884)

Electrophotography

Image formation

Photoconductive member

Reexamination Certificate

active

08050594

ABSTRACT:
A conductive drum flange is provided in a cylindrical member of a photoconductive drum. A first gear is formed on an outer circumferential surface of the drum flange. A nonconductive gear member is provided in a shaft member of a transfer roller. A second gear to which driving force is transmitted from the first gear is formed on an outer circumferential surface of the gear member. A groove is formed in at least one of two sides of the gear member. A distance for insulation along the side is increased by groove walls of the groove.

REFERENCES:
patent: 5689774 (1997-11-01), Shishido et al.
patent: 7274896 (2007-09-01), Kawai et al.
patent: 2008/0223173 (2008-09-01), Ishikawa
patent: 2009/0317734 (2009-12-01), Takeda
patent: 06-003924 (1994-01-01), None
patent: 06-051656 (1994-02-01), None

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