Electrophotography – Control of electrophotography process – Responsive to copy media characteristic
Reexamination Certificate
2007-04-30
2009-12-08
Gray, David M (Department: 2852)
Electrophotography
Control of electrophotography process
Responsive to copy media characteristic
C399S072000, C399S301000
Reexamination Certificate
active
07630657
ABSTRACT:
An image forming apparatus, in which a program for carrying out an image forming method is provided, includes a transfer member to receive respective images formed on a plurality of image bearing members, an image detecting unit to detect the images conveyed on the transfer member, a paper length detecting unit to detect a length of a recording medium in a sheet travel direction, a counting unit to count the number of recording media and to change a count up value according to a detection result by the paper length detecting unit, and a control unit to control an image forming timing with respect to the image bearing members based on a detection timing of the image and to perform a positional deviation adjustment each time a counted value increases by a predetermined amount so as to reduce an amount of a positional deviation of the image.
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U.S. Appl. No. 11/972,136, filed Jan. 10, 2008, Funamoto, et al.
Amanai Kouji
Ebara Joh
Ehara Yasuhisa
Funamoto Noriaki
Handa Seiichi
Curran Gregory H
Gray David M
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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