Developing device, image forming apparatus, and cleaning method for the developing device

The present invention provides a developing device, an image forming device and a cleaning method for the developing device. The developing device includes a developer tank for housing a two-component developer containing toner and magnetic carrier; a first conveying portion having a first rotary sh...

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Bibliographic Details
Main Authors OHKAWA TAKESHI, TOKUYAMA MITSURU, ITOYAMA MOTOYUKI
Format Patent
LanguageChinese
English
Published 11.07.2012
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:The present invention provides a developing device, an image forming device and a cleaning method for the developing device. The developing device includes a developer tank for housing a two-component developer containing toner and magnetic carrier; a first conveying portion having a first rotary shaft rotatable about its axis and a first screw blade which surrounds the first rotary shaft and rotates together with the first rotary shaft and contains a ferromagnetic substance; a second conveying portion having a second rotary shaft rotatable about its axis and a second screw blade which surrounds the second rotary shaft and rotates together with the second rotary shaft and contains a ferromagnetic substance; a first electromagnet for magnetizing the first screw blade; and a second electromagnet for magnetizing the second screw blade.
Bibliography:Application Number: CN201010105062