Cleaning device for an electrostatic photographic copying machin

Details Cleaning device for an electrostatic photographic copying machin Cleaning device for an electrostatic photographic copying machin

1983-03-17

1985-05-14

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

118652, G03G 1508

Patent

active

045168490

ABSTRACT:
A cleaning device for an electrostatic photographic copying machine having a sensitive drum provided with a paper-stripping groove at one side thereof includes an upper blade for stripping residual toner from the sensitive drum, a lower blade for guiding the thus stripped toner from the surface of the sensitive drum toward a toner withdrawing device, and a groove cover covering the paper-stripping groove at least from the upper blade to the lower blade so that the groove cover will be in contact with the lower blade. Residual toner which is stripped from the surface of the sensitive drum is prevented from entering the paper stripping groove by the groove cover.

REFERENCES:
patent: 3552848 (1971-01-01), Van Wagner
patent: 3809012 (1974-05-01), Delvecchio
patent: 3917398 (1975-11-01), Takahashi et al.
patent: 4140388 (1979-02-01), Ikesue
patent: 4213617 (1980-07-01), Salger
Freeman et al., "Spring Loaded Seal", IBM Technical Disclosure Bulletin, vol. 17, No. 3, Aug., 1974.

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