Electrophotographic apparatus which reduces running cost by star

Electrophotography – Document handling – Copy

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399 50, 399167, G03G 1500

Patent

active

059786434

ABSTRACT:
An electrophotographic apparatus is provided with suppressed or eliminated electrostatic fatigue and physical wearing-off of a photoconductive element and drive system layout, and is further provided with resultant reduced running cost which is realized by minimum rotation of a photoconductive element and minimum applying time of an impressive charger for each image forming procedure. The electrophotographic apparatus is provided with optional feeders in addition to a main feeder, and a detecting device is provided at a position capable of detecting a tip end position of a recording sheet at an upper stream of a transfer process, from any of the main sheet feeder or the optional sheet feeders, in which a photoconductive element motor or charge applying process is started in accordance with an output of the recording sheet detecting device.

REFERENCES:
patent: 4580890 (1986-04-01), Sugizaki et al.
patent: 4647946 (1987-03-01), Inuyama
patent: 4894669 (1990-01-01), Sugiura et al.
patent: 4922272 (1990-05-01), Wakamatsu et al.
patent: 4933772 (1990-06-01), Ikenoue et al.
patent: 5323220 (1994-06-01), Yasuda
patent: 5694158 (1997-12-01), Kato et al.

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