Electrophotography – Control of electrophotography process – Of plural processes
Reexamination Certificate
2008-01-29
2008-01-29
Ngo, Hoang (Department: 2852)
Electrophotography
Control of electrophotography process
Of plural processes
C399S060000, C399S072000
Reexamination Certificate
active
07324769
ABSTRACT:
In an image forming apparatus in which an maximum image width for image forming is smaller than the sum of a maximum recording material width of a usable recording material and length of two pattern images for a density correction and a registration deviation correction in a recording material width direction, an area for forming the pattern image is changed between the case where the recording width of a practically usable recording material is not more than a threshold value and the case where the recording width exceeds the threshold value. When the recording width is not more than the threshold value, the pattern image is formed on a non-sheet passing section image area, and when the recording width exceeds the threshold value, the pattern image is formed on a sheet interval between the trailing edge of a proceeding recording material and the leading edge of a subsequent material.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Ngo Hoang
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