Image forming apparatus having an improved web type cleaning dev

Details Image forming apparatus having an improved web type cleaning dev Image forming apparatus having an improved web type cleaning dev

1997-07-10

1998-12-15

Brase, Sandra L.

Electrophotography

Image formation

Fixing

399 71, G03G 1520, G03G 2100

Patent

active

058505881

ABSTRACT:
An image forming apparatus is provided with a web type cleaning device for cleaning a fixing roller of a fixing device. The cleaning device has a web roller having a web wound therearound and a web winding roller to wind the web unwound from the web roller. A part of the web unwound from the web roller is pushed by a pushing device, including a spring member, against the fixing roller with a relatively small pushing force. When the fixing roller rotates, the heating roller is cleaned by the web contacting the heating roller. After a predetermined number of copies are completed and when the heating roller is not rotating, the web is wound by the web winding roller to change the portion contacting the fixing roller.

REFERENCES:
patent: 4179211 (1979-12-01), Kimura et al.
patent: 4557588 (1985-12-01), Tomosada
patent: 5168314 (1992-12-01), Gunji et al.
patent: 5402211 (1995-03-01), Yoshikawa
patent: 5559591 (1996-09-01), Kato et al.

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