Image forming apparatus with heater having bias applying...

Details Image forming apparatus with heater having bias applying... Image forming apparatus with heater having bias applying...

2005-10-04

2005-10-04

Royer, William J. (Department: 2852)

Electrophotography

Control of electrophotography process

Responsive to copy media characteristic

C399S067000, C399S068000, C399S322000, C399S328000

Reexamination Certificate

active

06952538

ABSTRACT:
An image forming apparatus is provided with an image heating apparatus for holding and conveying a recording material bearing an image in a nip between a heating member and a pressurizing member to heat the image on the recording material. The image forming apparatus has a bias applying portion for applying a bias to at least one of the heating member and the pressurizing member and a bias setting portion for setting an amount of the applied bias. In the case that a recording material(s) having a first width is fed and thereafter a recording material is to be fed, the bias setting portion sets the amount of the applied bias based on the number of the recording material(s) having the first width that have been fed and the time from the feeding of the recording material(s) having the first width to the feeding of the recording material having the second width.

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