Toner concentration contoller

Details Toner concentration contoller Toner concentration contoller

1996-03-01

1997-09-16

Smith, Matthew S.

Electrophotography

Control of electrophotography process

Control of developing

399 27, 399 29, G03G 2100

Patent

active

056690371

ABSTRACT:
A toner concentration controller which activates a toner replenishing motor to replenish toner when the concentration of the toner in a developer unit which develops an electrostatic latent image on a photoreceptor drum is a predetermined value or lower. The ON period of the toner replenishing motor is controlled based on paper feed information (e.g. preset development quantity, both-side/one-side copying, and development speed) of a copy sheet to which the developed image is to be transferred.

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patent: 4847659 (1989-07-01), Resch, III
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patent: 5040023 (1991-08-01), Yokoyama
patent: 5204669 (1993-04-01), Birnbaum et al.
patent: 5459556 (1995-10-01), Acquaviva et al.

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