Image forming apparatus having a transfer brush of electroconduc

Details Image forming apparatus having a transfer brush of electroconduc Image forming apparatus having a transfer brush of electroconduc

1992-02-04

1993-08-03

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355219, 355271, 355273, 355277, G03G 1516, G03G 1514

Patent

active

052333957

ABSTRACT:
An image forming apparatus includes a transfer brush for transferring to a paper sheet a developed image on an photoconductive drum. The transfer brush is formed in a plate-like shape by a number of electroconductive fibers bundled together. The transfer brush has a contact portion set in elastic contact with the drum. The brush presses the paper sheet, which is fed by the feeding device, against the drum under a predetermined pressing force. A DC current supply applies voltage to the paper sheet through the transfer brush so as to electrostatically attract the developed image to the paper sheet. The transfer brush is inclined to the image carrier so as to allow the paper sheet to be guided into an area between the drum and the transfer brush.

REFERENCES:
patent: 4183655 (1980-01-01), Umahashi et al.
patent: 4341456 (1982-07-01), Iyer et al.
patent: 4903081 (1990-02-01), Takahashi
patent: 5081501 (1992-01-01), Waki et al.

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