Fusing unit to control pressure applied to printing medium,...

Details Fusing unit to control pressure applied to printing medium,... Fusing unit to control pressure applied to printing medium,...

2007-09-11

2007-09-11

Gray, David M. (Department: 2852)

Electrophotography

Control of electrophotography process

Responsive to copy media characteristic

C399S331000

Reexamination Certificate

active

11281692

ABSTRACT:
A fusing unit of an image forming apparatus is capable of controlling fusing pressure according to detailed types of printing medium without deteriorating printing speed. A first roller rotates about a first rotation shaft CR1. A second roller rotates in contact with the first roller about a second rotation shaft CR2and is movable along the outer circumference of the first roller. A moving unit relocates the second roller according to a type of printing medium. A pressing unit presses the second roller toward the first roller by applying different pressures according to a position of the second roller with respect to the first roller.

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patent: 6577827 (2003-06-01), Matsuura et al.
patent: 08-146812 (1996-06-01), None
patent: 10-250874 (1998-09-01), None
patent: 2004-093759 (2004-03-01), None
patent: 2004-117518 (2004-04-01), None

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