Electrophotography – Control of electrophotography process – Color balance
Reexamination Certificate
2007-12-18
2007-12-18
Brase, Sandra L. (Department: 2852)
Electrophotography
Control of electrophotography process
Color balance
C399S049000, C399S085000, C399S223000
Reexamination Certificate
active
11292819
ABSTRACT:
In an image-forming apparatus being selectable between a four-color mode forming images using only cyan, magenta, yellow, and black toner and a six-color mode forming images using light cyan and light magenta toner in addition to the four-color toner, by automatically selecting the correction between density correction and gradation correction in the four-color mode and density correction and gradation correction in the six-color mode in accordance with an operation mode of the image-forming apparatus, variations in image density and gradation reproducibility can be effectively corrected for short and long periods in four-color and six-color modes.
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Brase Sandra L.
Canon U.S.A. Inc. I.P. Division
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