Electrophotography – Control of electrophotography process – Control of transfer
Reexamination Certificate
2011-05-31
2011-05-31
Walsh, Ryan D (Department: 2852)
Electrophotography
Control of electrophotography process
Control of transfer
C399S121000, C399S297000, C399S310000
Reexamination Certificate
active
07953335
ABSTRACT:
An image forming apparatus has a photoconductive drum or belt supporting a toner image, a transfer member transferring the toner image onto a recording medium, a transportation device transporting the recording medium to between the photoconductor and the transfer member, a charger charging a surface of the transfer member to the anti-polarity of the electric charge of the toner image, a rotation drive unit rotating the transfer member to the same direction of the recording medium transportation, a contacting/removing unit that contacts the transfer member to the image supported member for printing and removes the transfer member from the image supported member when not printing, and a drive force transferring/blocking unit that transfers the drive force from the rotation drive unit to the transfer member before print starting-up and blocking the drive force during printing.
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Kuwabara Akitomo
Mabuchi Hiroyuki
Onose Tsukasa
Otome Yukio
Sawahata Sho
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh & Company, Ltd.
Walsh Ryan D
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