Combination charging/cleaning arrangement for copier

Details Combination charging/cleaning arrangement for copier Combination charging/cleaning arrangement for copier

1982-09-16

1984-09-04

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3DD, 355 14D, 15 15R, 118652, G03G 1508

Patent

active

044694350

ABSTRACT:
An electrostatic copying apparatus comprises a charging/cleaning device which has both a charging function for charging a photosensitive layer and a cleaning function for removing a developer remaining on the photosensitive layer. The charging/cleaning device includes a first common rotatable roller having an electrical conductive contactor on the outer periphery thereof, a voltage applying mechanism for applying a voltage between furs of the contactor and a photosensitive drum. The furs applied with the voltage charge the photosensitive layer and electrostatically attract the developer remaining on the photosensitive layer to clean thereof. The charging/cleaning device further includes a recovering mechanism for recovering the developer attracted to the furs therefrom.

REFERENCES:
patent: 3780391 (1973-12-01), Leenhouts
patent: 3917397 (1975-11-01), Tanaka et al.
patent: 4123154 (1978-10-01), Fisher
patent: 4361922 (1982-12-01), Karal

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