Heat roller type toner image fixing device having cleaning rolle

Details Heat roller type toner image fixing device having cleaning rolle Heat roller type toner image fixing device having cleaning rolle

1995-01-04

1996-08-06

Moses, R. L.

Photocopying

Contact printing

Light boxes

355284, 1525651, G03G 1520, G03G 2100

Patent

active

055439039

ABSTRACT:
A toner image fixing device includes a heat roller, and a backup roller engaged with the heat roller to form a nip therebetween. A paper carrying a toner image is passed through the nip whereby the toner image is thermally fused and fixed on the paper. The heat roller, which is stained by a part of the fused toner during the fixing process, should be cleaned before a toner image is fixed on a successive paper without staining. To this end, a cleaning roller made of a felt material is pressed against the heat roller so as to be rotated together with the heat roller by a frictional force acting therebetween. The cleaning roller must be periodically replaced. The fixing device is constituted such that the replacement of the cleaning roller can be easily and quickly carried out.

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patent: 3716221 (1973-02-01), Gorka et al.
patent: 3861860 (1975-01-01), Thettu et al.
patent: 3861861 (1975-01-01), Thettu
patent: 3980424 (1976-09-01), Latone
patent: 4009953 (1977-03-01), Ravizza et al.
patent: 4137597 (1979-02-01), Achenbach et al.
patent: 4231653 (1980-11-01), Nagahara et al.
patent: 4866482 (1989-09-01), Hirasawa et al.
patent: 4899197 (1990-02-01), Davis et al.
patent: 5047809 (1991-09-01), Owada et al.
English Abstract of Japanese Patent Publication 57-105760, Publication Date Jul. 1, 1982.
English Abstract of Japanese Patent Publication 3-144679, Publication Date Jun. 20, 1991.

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