Electrophotography – Image formation – Transfer
Reexamination Certificate
2007-06-01
2009-06-23
Tran, Hoan H (Department: 2852)
Electrophotography
Image formation
Transfer
Reexamination Certificate
active
07551882
ABSTRACT:
An image forming apparatus includes an image bearing member, a latent electrostatic image forming unit, a developing unit, an intermediate transferring unit which has an intermediate transfer belt and a plurality of rollers supporting the intermediate transfer belt, and a transfer fixing unit. The transfer fixing unit has a transfer fixing belt, a plurality of rollers supporting the transfer fixing belt, a heating member, and a pressurizing member forming a transfer fixing nip with the transfer fixing belt. A first roller, which is one of the plurality of rollers supporting the intermediate transferring belt, is opposite to a second roller, which is one of the plurality of rollers supporting the fixing transfer belt. The first roller and the second roller form a transfer nip between the intermediate transferring belt and the fixing transfer belt. The diameter of the first roller is smaller than the diameter of the second roller.
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Fujita Takashi
Kayahara Shin
Miyawaki Katsuaki
Nakafuji Atsushi
Seto Takashi
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
Tran Hoan H
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