Cleaning apparatus for electrophotography comprising lubricant f

Details Cleaning apparatus for electrophotography comprising lubricant f Cleaning apparatus for electrophotography comprising lubricant f

1981-04-17

1984-03-06

Moses, Richard L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

1525652, 118652, G03G 2100

Patent

active

044350740

ABSTRACT:
After a photosensitive drum is cleaned of residual toner by a scraper blade, a lubricant film is applied to the drum to maintain the coefficient of friction between the drum and blade constant and thereby ensure efficient cleaning and printing density without damage to the drum. The film forming material is in the form of a block and is applied to the drum by a rotary brush. The brush is selectively moved into and out of engagement with the drum to control the amount of film application. The engagement of the brush with the drum is controlled in accordance with a sensed parameter such as a number of copies produced, the coefficient of friction between the drum and a sensor blade, etc.

REFERENCES:
patent: 2889758 (1959-06-01), Bolton
patent: 3940282 (1976-02-01), Hina

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