Cleaning device for an image forming apparatus

Details Cleaning device for an image forming apparatus Cleaning device for an image forming apparatus

1995-05-15

1996-09-24

Moses, R. L.

Photocopying

Contact printing

Light boxes

355297, G03G 2100

Patent

active

055595936

ABSTRACT:
In an image forming apparatus of the type using spherical toner or toner whose mean volume grain size is 7 .mu.m or less, a cleaning device has at least one cleaning roller facing, but not contacting, a photoconductive element. An electric field for causing the toner to fly from the photoconductive element to the roller is formed between the element and the roller. An alternating field, DC or AC-biased DC bias voltage is applied to the roller. Particularly, a voltage having a rectangular waveform is applied to the roller.

REFERENCES:
patent: 4769676 (1988-09-01), Mukai et al.
Patent Abstracts of Japan, vol. 12, No. 166 (P704), Pub. May 19, 1988, JP62-279383.

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