Electrophotography – Control of electrophotography process – Of plural processes
Reexamination Certificate
2007-08-21
2007-08-21
Beatty, Robert (Department: 2852)
Electrophotography
Control of electrophotography process
Of plural processes
Reexamination Certificate
active
11432347
ABSTRACT:
In a density control technique wherein a density of a toner image formed as a patch image is detected for performing density control based on the detected result, detection errors are decreased so as to properly set a density control factor. The density control factor is optimized based on a variation rate of the patch image densities against a varied density control factor. The detected results of the patch image densities are corrected based on information on an image carrier acquired before the formation of the patch images.
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Hama Takashi
Nakashima Yoshihiro
Shimura Hidetsugu
Beatty Robert
Seiko Epson Corporation
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