Development device, process cartridge, and image forming apparatus

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United States of America Patent

PATENT NO 9098010
APP PUB NO 20130223891A1
SERIAL NO

13776333

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Abstract

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An image forming apparatus is provided which includes a development device that has no developer supply member and with which the decrease in density at a back end of a solid image and occurrence of ghosting are suppressed. A development roller having dielectric portions scattered on a surface thereof is provided and components are configured so that the position of the dielectric portions in a triboelectric series is on the same polarity side, relative to a regulating blade, as the normal charge polarity of the toner.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goto, Gosuke Kawasaki, JP 9 136
Ishida, Kazutoshi Mishima, JP 69 710
Koyanagi, Masato Mishima, JP 16 114
Kurachi, Masahiro Fujisawa, JP 26 426

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