Electrophotographic apparatus

Details Electrophotographic apparatus Electrophotographic apparatus

1980-05-06

1982-09-07

Truhe, J. V.

Photocopying

Including fiber optics

355 3TE, 355 14TR, 355 14CH, 430126, 118621, G03G 1500

Patent

active

043480985

ABSTRACT:
An electrophotographic apparatus is provided in which a toner image formed on a photosensitive member is initially transferred onto the surface of a transfer roller and then transferred onto a transfer sheet. Before the transfer step takes place, charge is injected into the toner image on the photosensitive member and the transfer roller is disposed close to the surface of the photosensitive member with a very small clearance. The photosensitive member has a conductive layer to which a bias voltage of the same polarity as the polarity of the toner charge can be applied. The transfer sheet is fed into the nib between the transfer roller and its abutting fixing roller, whereby the transfer and fixing of the toner image take place simultaneously.

REFERENCES:
patent: 3441938 (1969-04-01), Markgraf
patent: 3493501 (1976-02-01), Root
patent: 3620616 (1971-11-01), Davidson
patent: 3701996 (1972-10-01), Perley
patent: 4055380 (1977-10-01), Borostyan
patent: 4068588 (1978-01-01), Nakano et al.
patent: 4165171 (1979-08-01), Lemmen
patent: 4172905 (1979-10-01), Metcalfe et al.
patent: 4195927 (1980-04-01), Fotland et al.
patent: 4205912 (1980-06-01), Yamaguchi et al.
patent: 4207101 (1980-06-01), Vola et al.

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