Toner density control for multicolor electrophotographic copier

Details Toner density control for multicolor electrophotographic copier Toner density control for multicolor electrophotographic copier

1988-03-18

1989-10-17

Grimley, Arthur T.

Photocopying

Contact printing

Light boxes

355326, G03G 1508, G03G 1501

Patent

active

048750794

ABSTRACT:
A device for controlling the density of toner of different colors individually stored in a plurality of developing units which are arranged around a photoconductive element senses toner density at a predetermined period which differs from one of the developing units to another. Each of the developing units is associated with a different kind of toner density sensing device.

REFERENCES:
patent: 4579443 (1986-04-01), Abuyama et al.
patent: 4742372 (1988-05-01), Takahashi
patent: 4754301 (1988-06-01), Kasamura et al.

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