Electrophotography – Control of electrophotography process – Control of developing
Reexamination Certificate
2008-12-24
2011-12-27
Beatty, Robert (Department: 2852)
Electrophotography
Control of electrophotography process
Control of developing
C399S223000
Reexamination Certificate
active
08086125
ABSTRACT:
An image forming apparatus includes a plurality of developing devices. Each developing devices performs an electrophotographic process to form an image. The image forming apparatus comprises a first developing device and a second developing device. The first developing device holds a black developer containing a first black coloring agent. The second developing device holds a gray developer. The gray developer contains a second black coloring agent and a coloring agent of a chromatic color. The chromatic color is a complementary color to the second black coloring agent.
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Beatty Robert
Oki Data Corporation
Rabin & Berdo PC
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