Temperature control for an image heating apparatus

Electrophotography – Control of electrophotography process – Control of fixing

Reexamination Certificate

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C219S216000, C399S068000, C399S328000

Reexamination Certificate

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06847793

ABSTRACT:
An image forming apparatus is provided with a heating device, a conveying device, and a control device, wherein the control device has a mode for changing the set temperature from a first temperature to a second temperature higher than the first temperature when the leading edge of the recording material passes through the nip portion by a predetermined distance and the predetermined distance is equal to a value 0.3 to 2.0 times larger than the distance between the nip portion and the carrying device. Thereby, a recording-material jam is controlled and the image quality is prevented from deteriorating.

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patent: 5321481 (1994-06-01), Mathers
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patent: 6087641 (2000-07-01), Kinouchi et al.
patent: 6343195 (2002-01-01), Abe et al.
patent: 6453130 (2002-09-01), Richtsmeier
patent: 6567624 (2003-05-01), Murata
patent: 20020106211 (2002-08-01), Suzuki et al.
patent: 10-268697 (1998-10-01), None

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