Fixing unit and image forming apparatus

Details Fixing unit and image forming apparatus Fixing unit and image forming apparatus

2006-07-25

2006-07-25

Gutierrez, Diego (Department: 2859)

Electrophotography

Image formation

Fixing

C399S330000, C399S069000, C219S216000

Reexamination Certificate

active

07082283

ABSTRACT:
A fixing device, comprising a heating roller being rotatable and having a rotating circumferential surface to come in contact with a recording medium holding non-fixed developing agent images so as to heat and melt the non-fixed developing agent images and a temperature detecting unit having a temperature detecting element to detect temperature of the rotating circumferential surface and a support member to support the detecting element, wherein the support member is arranged to come in contact with the rotating circumferential surface at a first contact position on the rotating circumferential surface, the temperature detecting element is arranged to come in contact with the rotating circumferential surface at a second contact position which is located upstream of the first contact position in the rotating direction. This structure provides a high quality toner images by controlling fixing temperature based on a precise temperature detection of the heating roller.

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patent: 2004/0240912 (2004-12-01), Fujita et al.
patent: 2001-005333 (2001-01-01), None
patent: 2002-304084 (2002-10-01), None

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