Electrophotography – Image formation – Transfer
Reexamination Certificate
2011-04-19
2011-04-19
Porta, David P (Department: 2884)
Electrophotography
Image formation
Transfer
C399S297000, C399S308000, C399S121000
Reexamination Certificate
active
07929894
ABSTRACT:
A driving control device for use in an image forming apparatus includes a control unit that analyzes any one of a speed variation pattern and a thickness variation pattern of an endless belt member of the image forming apparatus per at least one rotation of the endless belt member while endlessly moving the endless belt member by a driving rotating unit, and starts to execute, based on a result of analysis, a driving-speed-control-pattern updating process to update a driving speed control pattern of the driving rotating unit per at least one rotation of the endless belt member, after a power of an image forming apparatus is turned on and within a preparation period in which a predetermined preparation process is completed so that an image forming operation can be started based on an image formation command from an operator.
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Andoh Toshiyuki
Ebara Joh
Kobayashi Kazuhiko
Matsuda Hiromichi
Matsuda Yuji
Bryant Casey
Harness & Dickey & Pierce P.L.C.
Porta David P
Ricoh Company Limited
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