Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yasufumi Kayahara0
Shigeki Nishimura0
Takuji Matsumoto0
Toyohiko Awano0
Chiharu Nakajima0
Hiromitsu Koizumi0
Mutsumi Kikuchi0
Date of Patent
March 22, 2011
0Patent Application Number
123381700
Date Filed
December 18, 2008
0Patent Primary Examiner
Patent abstract
The present invention provides an exchangeable toner cartridge which can be attached to or detached from an apparatus main body. The toner cartridge includes the toner transfer member which is provided along a longitudinal direction of the toner cartridge and which can rotate. At the first range of the upstream side in a toner transfer direction the toner transfer member is formed into a substantially spiral shape, and at the second range of the downstream side in the toner transfer direction on a side of a toner supply port, toner transfer member has a shape different from that of the first range.
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