Image forming apparatus having toner handling units which are al

Details Image forming apparatus having toner handling units which are al Image forming apparatus having toner handling units which are al

1991-02-20

1993-01-26

Moses, Richard L.

Photocopying

Contact printing

Light boxes

355305, 355245, G03G 1509, G03G 2100

Patent

active

051826011

ABSTRACT:
Image forming apparatus having two identical toner handling units each functioning as a developing device when located in a developing position or as a cleaning device when located in a cleaning position. The image forming devices are alternately and repetitively set in the developing position and cleaning position.

REFERENCES:
patent: 3647293 (1972-03-01), Queener
patent: 3700328 (1972-10-01), Davidge et al.
patent: 4142165 (1979-02-01), Miyakawa et al.
patent: 4185910 (1980-01-01), Nomura et al.
patent: 4240723 (1980-12-01), Forgo
patent: 4465360 (1984-08-01), Yamagishi et al.
patent: 4466379 (1984-08-01), Nishimura
patent: 4876572 (1989-10-01), Nagatsuna
patent: 4885223 (1989-12-01), Enoki et al.
Abstract of Japanese Kokai 62-31865, Patent Published Feb. 10, 1987.

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