Electrophotography – Image formation – Development
Reexamination Certificate
2006-04-13
2008-11-25
Lee, Susan S. (Department: 2852)
Electrophotography
Image formation
Development
C399S049000, C399S057000, C399S060000, C399S072000
Reexamination Certificate
active
07457568
ABSTRACT:
A CPU113executes a control program stored in a memory116thereby forming a plurality of patch images with a developing bias increased for each of the patch images; detecting a density of each of the patch images by means of a patch sensor17; and comparing the image densities to determine whether the image density is saturated or not. Then, an image forming condition in which an image density is substantially saturated is determined and is stored in the memory116. When a print command signal is inputted from an external device via a main controller100, a printing operation is performed under the image forming condition stored in the memory116.
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Fujita Toru
Kitazawa Atsunori
Koga Yoshiro
Nakamura Masahide
Lee Susan S.
Seiko Epson Corporation
Sughrue & Mion, PLLC
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