Photocopying – Contact printing – Light boxes
Patent
1987-12-14
1989-08-22
Grimley, Arthur T.
Photocopying
Contact printing
Light boxes
118689, 430 30, 355246, G03G 1508
Patent
active
048600636
ABSTRACT:
A control method of supplying toner to a developing device wherein a toner supply to the developing device is controlled so that a level of the toner density is increased in a range not more than a predetermined level at a predetermined interval of an integrated development period while the developing device continues its developing operations without any continuous interruption longer than a constant period, and the level of the toner density is decreased when the continuous interruption is longer than said constant period.
REFERENCES:
patent: 4208985 (1980-06-01), Anzai et al.
patent: 4277549 (1981-07-01), Tatsumi et al.
patent: 4611905 (1986-09-01), De Schamphelaere
Bierman Jordan B.
Grimley Arthur T.
Konica Corporation
Pendegrass J.
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