Printing device toner control including rest recovery...

Details Printing device toner control including rest recovery... Printing device toner control including rest recovery...

2007-07-12

2010-10-05

Porta, David P (Department: 2884)

Electrophotography

Control of electrophotography process

Control of developing

C399S061000

Reexamination Certificate

active

07809296

ABSTRACT:
A method and computer program for preventing excess supply of toner in an imaging device include detecting a change in a tribo-electric charge of toner after a period of inactivity of the imaging device, compensating a toner dispense control value, such as a PID (Proportional, Integral, Differential) value, based on the detected change in the tribo-electric charge of toner, and outputting the compensated toner dispense control value. A system for preventing excess supply of toner includes a sensor that detects a change in a tribo-electric charge of toner after a period of inactivity of the imaging device, and a controller that compensates the toner dispense control value based on the detected change in the tribo-electric charge of toner and outputs the compensated toner dispense control value. The detected change may be based on a charge prior to the inactivity.

REFERENCES:
patent: 2001/0017991 (2001-08-01), Kobayashi et al.
patent: 2003/0118358 (2003-06-01), Ko
patent: 2004/0184826 (2004-09-01), Ozawa et al.

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