Toner cleaning device for electrophotographic copying machine

Details Toner cleaning device for electrophotographic copying machine Toner cleaning device for electrophotographic copying machine

1983-04-21

1985-05-14

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3DD, G03G 1508

Patent

active

045168504

ABSTRACT:
A toner cleaning unit is provided for use in an electrophotographic copying machine to remove residual toner from a photosensitive drum after the transfer of a toner image onto a copy sheet and prior to formation of another electrostatic latent image thereon. The unit comprises a cleaning blade which is disposed for selective contact with the photosensitive drum to collect any residual toner, and an intercept member disposed adjacent to the blade for intercepting any toner which might freely fall from a pile of toner defined in the region of contact between the blade and the drum. By moving the blade away from the photosensitive drum, the pile of toner may be conveyed to a developing unit as the drum rotates.

REFERENCES:
patent: 3552850 (1971-01-01), Royka et al.
patent: 4174172 (1979-11-01), Lane
patent: 4218131 (1980-08-01), Ito et al.
patent: 4218132 (1980-08-01), Iwai et al.
patent: 4259003 (1981-03-01), Mangal et al.
patent: 4314756 (1982-02-01), Amitani et al.

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