Fixing device including pressure roller whose elastic layer has little impact on nip width due to thermal expansion

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12222666
APP PUB NO 20240004333A1
SERIAL NO

18340088

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fixing device incorporated in a main body of an image forming apparatus includes a heater, a rotatable body, and a pressure roller. The rotatable body is configured to be heated by the heater. The pressure roller is configured to form a nip region in cooperation with the rotatable body to nip a sheet at the nip region between the pressure roller and the rotatable body. The pressure roller includes a shaft, and an elastic layer covering a peripheral surface of the shaft. The elastic layer has a thickness of at least 1 millimeter to at most 3 millimeters. The pressure roller has a peripheral surface whose hardness is in a range of at least 60 to at most 67 on the Asker C scale.

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Patent Owner(s)

  • BROTHER KOGYO KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hatakeyama, Shinichi Nagoya, JP 21 86
Kato, Yasutada Nagoya, JP 12 4
Nishimura, Takuya Nukata, JP 116 1306
Souda, Makoto Nagoya, JP 71 591
Taguchi, Kazuna Nagoya, JP 108 289

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