Fixing device and image forming apparatus incorporating same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11809107
APP PUB NO 20230136994A1
SERIAL NO

17901873

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fixing device includes a heater, a fixing rotator, a first temperature sensor, a second temperature sensor, a contact rotator, and circuitry. The fixing rotator has an outer circumferential surface having a first area and a second area. The first area contacts both a first sheet and a second sheet having a width narrower than the width of the first sheet. The second area contacts the first sheet but does not contact the second sheet. The first temperature sensor detects a first temperature of the first area. The second temperature sensor detects a second temperature of the second area. The contact rotator contacts both the first area and the second area and rotates at the one of at least two relative velocities with respect to the fixing rotator. The circuitry sets one of the at least two relative velocities based on the first temperature and the second temperature.

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Patent Owner(s)

  • RICOH COMPANY, LTD.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amita, Akiyasu Kanagawa, JP 50 1798
Arai, Daisuke Tokyo, JP 103 573
Hirose, Fumihiro Kanagawa, JP 38 287
Tokuda, Tetsuo Tokyo, JP 67 4888

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