Charger control in an electrophotographic copying apparatus

Details Charger control in an electrophotographic copying apparatus Charger control in an electrophotographic copying apparatus

1994-03-11

1995-11-07

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355219, 355274, G03G 2100

Patent

active

054651352

ABSTRACT:
An electrophotographic copying apparatus including a time counter to count a time during which transfer sheets are left in a stacker; a memory to store an output value of a humidity detector; a calculator to calculate a correction value for each transfer sheet in accordance with the output value of the humidity detector and the time counted by the time counter; and a controller to control a corona discharging output for each transfer sheet in accordance with the correction value.

REFERENCES:
patent: 3950680 (1976-04-01), Michaels et al.
patent: 4134147 (1979-01-01), Watanabe
patent: 4420246 (1983-12-01), Nonaka et al.
patent: 4589765 (1986-05-01), Perun et al.
patent: 5029314 (1991-07-01), Katsumi et al.
patent: 5142332 (1992-08-01), Osawa et al.
patent: 5182603 (1993-01-01), Yamada
patent: 5198864 (1993-03-01), Fletcher
patent: 5313308 (1994-05-01), Hasegawa et al.
Patent Abstracts of Japan, vol. 4, No. 58, (P-9) [540] Apr. 30, 1980 & JP-A-55 28 081 (Ricoh).

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