Fixer, image forming apparatus, and image forming method

Details Fixer, image forming apparatus, and image forming method Fixer, image forming apparatus, and image forming method

2007-11-08

2010-02-16

Brase, Sandra L (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

C399S328000

Reexamination Certificate

active

07664415

ABSTRACT:
A fixer for an image forming apparatus includes a fixing member configured to fuse a toner image with heat, a pressure member configured to press against the fixing member to form a nip therebetween, and a control unit configured to control a relative pressure of the pressure member against the fixing member. The control unit includes a cam configured to change a rotation position thereof to change the relative pressure of the pressure member against the fixing member, a driving source configured to drive the cam to rotate, and a controller configured to detect a rotation position of the cam by detecting changes in an electrical current that flows in the driving source when the cam is rotated, and control the rotation position of the cam.

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patent: 6526239 (2003-02-01), Shiiya
patent: 6687468 (2004-02-01), Holubek et al.
patent: 58-195255 (1983-12-01), None
patent: 8-69202 (1996-03-01), None
patent: 9-160425 (1997-06-01), None
patent: 2005-114959 (2005-04-01), None
patent: 2005-201918 (2005-07-01), None

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