Electrophotographic apparatus and belt fixing device with non-un

Details Electrophotographic apparatus and belt fixing device with non-un Electrophotographic apparatus and belt fixing device with non-un

1996-09-18

1998-07-07

Ramirez, Nestor R.

Electrophotography

Image formation

Fixing

G03G 1520

Patent

active

057782946

ABSTRACT:
In a color electrophotographic apparatus, a belt fixing device which includes a pressure roller and a plurality of belt transport rollers for rotating a belt are provided for fixing unfixed toner. In the belt fixing device, a heating roller and a driving roller, which constitute the belt transport rollers, are always kept in contact with the pressure roller so that a fixing belt is curved in contact with the pressure roller, and after fused toner has been cooled, the driving roller applies pressure to the toner to separate the toner from the belt. According to this arrangement, a small-sized fixing device is achieved in which no silicone oil is needed and in which the running stability of sheets and the fixing belt is superior so that a high-quality fixed image can be obtained. A color electrophotographic apparatus using such a fixing device is also achieved.

REFERENCES:
patent: 5343280 (1994-08-01), Hirabayashi et al.
patent: 5345300 (1994-09-01), Uehara et al.
patent: 5349424 (1994-09-01), Dalal et al.
patent: 5410394 (1995-04-01), Wayman et al.

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