Belt unit, transfer belt unit, and image forming apparatus

Details Belt unit, transfer belt unit, and image forming apparatus Belt unit, transfer belt unit, and image forming apparatus

2011-03-08

2011-03-08

Beatty, Robert (Department: 2852)

Electrophotography

Image formation

Transfer

C399S302000, C399S303000

Reexamination Certificate

active

07904010

ABSTRACT:
A belt unit includes a belt, a contact member, a movable member, an eccentric cam, a contact-separation mechanism, and a braking unit. The contact member is configured to come into contact with the belt. The contact-separation mechanism allows the movable member to move according to the rotation of the eccentric cam to control contact and separation between the contact member and the belt. The braking unit controls the rotation of the eccentric cam by a predetermined angle.

REFERENCES:
patent: 6889027 (2005-05-01), Tachiki et al.
patent: 08-339129 (1996-12-01), None
patent: 2001-337497 (2001-12-01), None
patent: 2003-186313 (2003-07-01), None
patent: 2004-084729 (2004-03-01), None
patent: 2004084729 (2004-03-01), None
patent: 2005-266269 (2005-09-01), None
patent: 2006153144 (2006-06-01), None

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