Electrophotographic copying apparatus including toner cleaning a

Details Electrophotographic copying apparatus including toner cleaning a Electrophotographic copying apparatus including toner cleaning a

1983-11-16

1985-05-28

Grimley, A. T.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

152565, 118652, G03G 2100

Patent

active

045196990

ABSTRACT:
An arrangement for and method of cleaning residue toner from the surface of a photoconductive drum forming part of an overall electrophotographic copying apparatus is disclosed herein. The arrangement utilizes a wiping member, for example a blade or brush, adapted to engage the drum's surface directly as the latter rotates and an assembly of components for moving the wiping member at a continuously controlled speed between a first position in direct engagement with the drum's surface and a second position out of engagement therewith. In one embodiment disclosed herein, this assembly uses a speed damping approach to accomplish speed control and in a second embodiment it uses a combination cam and cam follower.

REFERENCES:
patent: 3641969 (1972-02-01), Hakanson
patent: 3819263 (1974-06-01), Draugelis et al.
patent: 3848992 (1974-11-01), Smith
patent: 4131359 (1978-12-01), Honda
patent: 4364660 (1982-12-01), Oda

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