Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-05-02

2006-05-02

Lee, Susan (Department: 2852)

Electrophotography

Machine operation

Electrical connection

C399S313000

Reexamination Certificate

active

07039337

ABSTRACT:
The invention provides an image forming apparatus including an image bearing member, a transfer member for transferring a toner image from the image bearing member, and a first contact portion and a second contact portion which can be mutually contacted for applying a voltage to the transfer member, the first contact portion having a convex portion, wherein the transfer member is pressed toward the image bearing member by a pressure exerted between the first contact portion and the second contact portion, and the convex portion has a hardness larger than that of the second contact portion. It is rendered possible to prevent an intrusion of toner or the like into the electrical contact portion, thus resulting in a contact failure.

REFERENCES:
patent: 5689775 (1997-11-01), Marumoto
patent: 6256472 (2001-07-01), Miyake et al.
patent: 6522845 (2003-02-01), Sameshima
patent: 2004/0013452 (2004-01-01), Choi
patent: 58126544 (1983-07-01), None
patent: 63173078 (1988-07-01), None
patent: 03144474 (1991-06-01), None
patent: 04016882 (1992-01-01), None
patent: 05027614 (1993-02-01), None
patent: 9-319174 (1997-12-01), None
patent: 11-161038 (1999-06-01), None

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