Image forming apparatus capable of changing image forming...

Details Image forming apparatus capable of changing image forming... Image forming apparatus capable of changing image forming...

2006-08-08

2006-08-08

Tran, Hoan (Department: 2852)

Electrophotography

Control of electrophotography process

C399S067000, C399S068000

Reexamination Certificate

active

07088931

ABSTRACT:
An image forming apparatus of the present invention capable of changing the image forming direction detects the surface temperatures at the central part and edges of a fixing member, when an abnormal temperature rise or temperature insufficiency occurs at the ends, rotates the image forming direction by a controller, changes the width of a recording medium passing the fixing member, and executes fixing without using the ends of an abnormal temperature rise or temperature insufficiency. By doing this, regardless of an abnormal temperature rise or temperature insufficiency on the tops of the ends of the fixing member, fixed toner images of high image quality can be obtained efficiently without interrupting the image forming steps.

REFERENCES:
patent: 6587654 (2003-07-01), Nishi
patent: 6889018 (2005-05-01), Kinouchi et al.
patent: 6920294 (2005-07-01), Takano
patent: 6937827 (2005-08-01), Katoh et al.
patent: 6-186883 (1994-07-01), None
patent: 10-301436 (1998-11-01), None

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