Image heating apparatus and image forming apparatus

Details Image heating apparatus and image forming apparatus Image heating apparatus and image forming apparatus

2005-03-01

2005-03-01

Ngo, Hoang (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

C399S068000, C399S045000, C399S043000

Reexamination Certificate

active

06862416

ABSTRACT:
An image heating apparatus which heats an image on a recording material by holding and conveying the image-borne recording material at a nip between heating and pressure members has a sequence to set a heating temperature of the apparatus to be lower than an ordinary set temperature when, after the recording material of a width narrower than a predetermined width was passed, the recording material of a width wider than that width is passed. The set heating temperature when the wide-width recording material is passed after the narrow-width recording material was passed is controlled according to the number of the passed narrow-width recording materials and an elapsed time from the passing of the narrow-width recording material to the passing of the wide-width recording material, whereby hot off-set occurring when the large size recording material is passed after the small size recording material was passed is prevented without deteriorating fixability.

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