Electrophotography – Image formation – Transfer
Reexamination Certificate
2011-08-16
2011-08-16
Grainger, Quana M (Department: 2852)
Electrophotography
Image formation
Transfer
Reexamination Certificate
active
08000641
ABSTRACT:
The present invention provides an image forming apparatus comprising at least an image holding member, an charging unit, a latent image forming unit, a developing unit, an intermediate transfer belt, a primary transfer unit, a secondary transfer unit, a fixing unit, and a cleaning unit, wherein a surface hardness of a side, of the intermediate transfer belt, contacting with the image holding member being 10 to 30, a carrier in the developer having at least two resin-coated layers on a surface of a core material containing ferrite, and the core material having a surface roughness Sm of 2.0 μm or less, a surface roughness Ra of 0.1 μm or more, and an average a circularity degree of 0.975 to 1.000.
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Kiyono Fusako
Matsumoto Akira
Tsurumi Yosuke
Yamada Taichi
Fuji 'Xerox Co., Ltd.
Grainger Quana M
Oliff & Berridg,e PLC
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