Image density control method

Details Image density control method Image density control method

1983-11-07

1985-09-03

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

Including control feature responsive to a test or measurement

118688, 118651, 355 14D, G03G 2100

Patent

active

045392790

ABSTRACT:
An image density control method for an electrophotographic apparatus is disclosed which prepares a white pattern region and a black pattern region on a photoconductive element whose electrostatic latent images are far different from each other in potential. Values relating to image densities individually associated with the two pattern regions are sensed and, based on the sensed values, parameters relating to image processing which effect image density are controlled. When any of the sensed values does not lie in a predetermined range, it is suitably compensated.

REFERENCES:
patent: 4313671 (1983-02-01), Kuru
patent: 4372672 (1983-02-01), Pries

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