Electrophotographic fixing device

Details Electrophotographic fixing device Electrophotographic fixing device

1981-06-03

1982-10-05

Prescott, A. C.

Photocopying

Including fiber optics

355 14FU, 118 60, 118101, G03G 1500, B05C 1100

Patent

active

043525512

ABSTRACT:
An electrophotographic fixing device having a heat roller covered with a layer of silicone rubber, and an oil applying assembly for coating the surface of the heat roller with an offset preventing agent, such assembly comprising a felt impregnated with the offset preventing agent, and a metallic roller in surface rubbing contact with the felt to prevent offset of a toner image formed on a sheet passing over the heat roller surface, the present fixing device having a surface of its metallic roller roughened and in contact with a doctor blade of a material having a lower hardness than the material of the metallic roller. The doctor blade is in pressing contact with the roughened surface at a location to the rear of the position of rubbing contact between the felt and the metallic roller relative to the direction of rotation of the metallic roller.

REFERENCES:
patent: 3268351 (1966-08-01), Van Dorn
patent: 3941558 (1976-03-01), Takiguchi
patent: 4277161 (1981-07-01), Calabrese
patent: 4285295 (1981-08-01), Iwao et al.
patent: 4290691 (1981-09-01), Giorgini

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