Developer cartridge and developing unit having shutter for...

Details Developer cartridge and developing unit having shutter for... Developer cartridge and developing unit having shutter for...

2011-07-19

2011-07-19

Gray, David M (Department: 2852)

Electrophotography

Internal machine environment

Particle or contaminant control

C399S103000, C399S105000, C399S106000, C399S119000, C399S262000

Reexamination Certificate

active

07983590

ABSTRACT:
A developing unit includes a developer cartridge for accommodating developer and including a first opening for enabling communication between an inside of the developer cartridge and an outside of the developer cartridge, a housing including a cartridge housing part and a second opening provided in a position opposite to the first opening and formed toward the cartridge housing part, a shutter including a third opening and being movable between an open position and a closed position, and a protruding portion provided at an upstream end portion of the third opening in a movement direction of the shutter from the open position to the closed position and including a first end at a side close to the first opening and a second end at a side close to the second opening. The first end protrudes more downstream in the movement direction than the second end.

REFERENCES:
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patent: 7783234 (2010-08-01), Okamoto et al.
patent: 2005/0169672 (2005-08-01), Ban et al.
patent: 2006/0104673 (2006-05-01), Sasae et al.
patent: 2007/0223971 (2007-09-01), Takagi
patent: 2008/0298837 (2008-12-01), Mase
patent: 2009/0297226 (2009-12-01), Nagashima et al.
patent: 1041454 (2000-10-01), None
patent: 1659455 (2006-05-01), None
patent: 09-319202 (1997-12-01), None
patent: 2005-331617 (2005-12-01), None
patent: 2006-235306 (2006-09-01), None
patent: 2007-072234 (2007-03-01), None
Partial EP Search Report dtd Apr. 4, 2011 EP Appin. 08016246.4.

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