Method for controlling density in a printed image

Details Method for controlling density in a printed image Method for controlling density in a printed image

1997-12-02

1999-09-28

Moses, Richard

Electrophotography

Control of electrophotography process

Control of developing

399270, 399285, G03G 1508

Patent

active

059602325

ABSTRACT:
An improved method for controlling the optical density of an image printed by an electrostatic printer is provided. The method compensates for optical density drift over the useful life of a toner receptacle by adjusting the voltage vector between the photoconductive belt and the toner particles. The method calculates an overall toner usage amount and adjusts the voltage vector when the amount reaches one or more predetermined values. In this manner, the present method controls the optical density of a printed image over the useful life of the toner receptacle.

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