Electrophotography – Image formation – Photoconductive member
Reexamination Certificate
2006-09-19
2006-09-19
Tran, Hoan (Department: 2852)
Electrophotography
Image formation
Photoconductive member
C399S111000, C399S302000, C399S303000, C399S308000
Reexamination Certificate
active
07110700
ABSTRACT:
A belt driving controller includes a driving roller having a radius r1,a plurality of driven rollers that is driven by rotation of the driving roller, the driven rollers having a radius r2,an endless belt that is wound on the driving roller and the driven rollers and an encoder that is attached to one of the driven rollers, and that outputs a signal. The rotation of the driving roller is controlled based on the signal from the encoder, and (α2/α1)×(r1/r2)≦1 is satisfied where α1is a correction coefficient for a fluctuation in thickness of the endless belt caused by a belt winding angle on the driving roller, and α2is a correction coefficient for a fluctuation in the thickness on the driven roller.
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Andoh Toshiyuki
Hosokawa Jun
Kobayashi Kazuhiko
Matsuda Yuuji
Miura Yohhei
Ricoh Company Limited
Tran Hoan
LandOfFree
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