Image forming apparatus for performing image density control

Details Image forming apparatus for performing image density control Image forming apparatus for performing image density control

1996-04-09

1997-09-09

Pendegrass, Joan H.

Electrophotography

Control of electrophotography process

Having temperature or humidity detection

399 49, 399 55, G03G 1500

Patent

active

056665881

ABSTRACT:
By altering a developing bias, a plurality of patch images are formed on a photoconductor, and a density of each patch image is measured, thereby judging whether or not a target density value is within a range of the plurality of measured density values. If the target density value is outside the range, a developing bias which realizes the target density is obtained by an interpolation, in accordance with two measured density values that are closest to the target density value among a plurality of measured densities, and with a developing bias of two patch images that are related to these two measured density values.

REFERENCES:
patent: 4789878 (1988-12-01), Endo et al.
patent: 4814834 (1989-03-01), Endo et al.
patent: 5103260 (1992-04-01), Tompkins et al.
patent: 5175585 (1992-12-01), Matsubayashi et al.
patent: 5351107 (1994-09-01), Nakane et al.

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