Color image forming apparatus and color image forming method

Electrophotography – Image formation – Photoconductive member

Reexamination Certificate

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Reexamination Certificate

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07844201

ABSTRACT:
There is provided a tandem color image forming apparatus and the like, which is capable of suppressing the generation of black spots during a continuous image forming process, even though a non-magnetic single-component developer is used and a cleaner-less type is adopted. The color image forming apparatus is a tandem type that includes a plurality of image carriers and a cleaner-less type that does not include a blade cleaner, wherein the resistance per square centimeter of a base body of an image carrier using for at least a black developer among the plurality of image carriers, or the resistance per square centimeter of the base body through an intermediate layer is set in a range of 1×105to 1×108Ω or more.

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patent: 2003/0185591 (2003-10-01), Furukawa et al.
patent: 2003/0219664 (2003-11-01), Ohkura et al.
patent: 2007/0092296 (2007-04-01), Ishino
patent: 10-333393 (1998-12-01), None
patent: 2001-051467 (2001-02-01), None

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