Drum cleaning method and apparatus for electrostatography

Details Drum cleaning method and apparatus for electrostatography Drum cleaning method and apparatus for electrostatography

1976-06-04

1978-06-20

Hix, L. T.

Gas separation: apparatus

Magnetic separating means

96 1R, 355 15, 1525652, G03G 2100

Patent

active

040959805

ABSTRACT:
The entire surface of a photoconductive drum is developed with a toner substance after imaging, and a copy sheet is fed into contact with the drum for transfer of the toner image thereto. If the copy sheet is smaller than the maximum image area of the drum, toner from the portion of the drum outside of the edges of the copy sheet will be transferred to transfer and separating rollers and the like to contaminate the same if not removed. The invention provides a brush which slidably contacts the exposed back surface of the copy sheet and the portion of the drum outside the edges of the copy sheet to remove the toner from this portion prior to separating the copy sheet from the drum.

REFERENCES:
patent: RE28566 (1975-10-01), Yang
patent: 3667840 (1972-06-01), Engel et al.
patent: 3848994 (1974-11-01), Fraser
patent: 3879123 (1975-04-01), Fisher
patent: 3994725 (1976-11-01), Volkers
patent: 4006987 (1977-02-01), Tomono et al.
Research Disclosure 13605, Electrographic Cleaning Apparatus, Aug. 1975.

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