Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2004-12-23
2008-09-23
Gray, David M. (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
Reexamination Certificate
active
07428393
ABSTRACT:
A highly reliable developing device, process cartridge, device unit, and image forming apparatus in which a developer is not spattered to the outside of the developing device even when the developing device where a developer is preset is included with shipment in an image forming apparatus main body. This developing device comprises a developer container for containing a developer, and a toner replenishing portion which is connected with a toner conveyance portion installed in the image forming apparatus main body and which is communicated with the developer container via an opening portion. Such a developing device is provided with a sealing member for sealing the opening portion until use of the developing device on the image forming apparatus main body is started.
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U.S. Appl. No. 11/287,305, filed Nov. 28, 2005, Hosokawa et al.
Hosokawa Hiroshi
Kimura Yoshiyuki
Nagashima Hiroyuki
Sampe Atsushi
Gray David M.
LaBombard Ruth N
Ricoh & Company, Ltd.
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