Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1976-12-15
1979-08-21
Moses, Richard L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
1525651, G03G 2100
Patent
active
041651723
ABSTRACT:
A spongy roller is rotated so that the surface thereof is pressed against the surface of a photoconductive drum and moves in the opposite direction therefrom. A resilient blade is also pressed against the photoconductive drum downstream of the roller so as to define a trough therebetween into which is supplied a cleaning liquid. The roller and blade remove all residual toner substance from the drum which remains after development and transfer operations. The cleaning liquid is supplied only while the drum is being operatively rotated in a quantity sufficient to wash away substantially all removed toner substance from between the blade and the drum. The roller is large enough to absorb enough cleaning liquid to remain moist and prevent solidification of removed toner substance between the roller and the drum between copying operations and when the apparatus is shut down.
REFERENCES:
patent: 3552850 (1971-01-01), Royka et al.
patent: 3654654 (1972-04-01), Abreu et al.
patent: 3656200 (1972-04-01), Riley
patent: 3711796 (1973-01-01), Saito et al.
patent: 4080059 (1978-03-01), Tani et al.
Midorikawa Akira
Miyakawa Seiichi
Okamoto Toyoo
Tani Tatsuo
Watanabe Toshio
Jordan Frank J.
Moses Richard L.
Ricoh Co. Ltd.
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