IP Library › Granted Patent US 9,141,083
Granted Patent B2
US 9,141,083 · App. 14/548,739 · Granted Sep 22, 2015

Process cartridge and image forming apparatus

Inventors: Akira Yoshimura (Suntoh-gun, JP); Kazunari Murayama (Suntoh-gun, JP); Susumu Nittani (Suntoh-gun, JP); Atsushi Numagami (Hadano, JP)
Assignee: Canon Kabushiki Kaisha
G03G21/1842G03G21/1623G03G21/1825G03G21/1839G03G2215/0119G03G2221/169G03G2221/1861G03G2221/1869
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Quick Facts
Patent No.
US 9,141,083
App. No.
14/548,739
Granted
Sep 22, 2015
Kind
B2
Abstract

A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.

Claims (6)

1. A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the main assembly including an opening, a door movable between a close position for closing the opening and an open position for opening the opening, a first force application member movable with movement of the door from the open position to the closing position and a second force application member movable by a driving force from a driving source, said process cartridge comprising:

an electrophotographic photosensitive drum;

a developing roller for developing an electrostatic latent image formed on said electrophotographic photosensitive drum;

a drum unit containing said electrophotographic photosensitive drum;

a developing unit which contains said developing roller and which is movable relative to said drum unit such that developing roller is movable between a contact position in which said developing roller is contacted to said electrophotographic photosensitive drum and a spaced position in which said developing roller is spaced from said electrophotographic photosensitive drum; and

a force receiving device including a first force receiving portion for receiving a force from the first force application member by movement of said door from the open position to the close position in the state that process cartridge is mounted to the main assembly of the apparatus through the opening, and a second force receiving portion movable from a stand-by position by movement of said first force receiving portion by a force received from the first force application member, wherein said second force receiving portion takes a projected position for receiving a force from the second force application member to move said developing unit from the contact position to the spaced position, the projected position being higher than the stand-by position.

Priority Claims (2)
JP 2006-004106 · Jan 11, 2006 · national
JP 2006-346270 · Dec 22, 2006 · national
Continuity (6)
Division 13953865 · Jul 30, 2013
Division 13408911 · Feb 29, 2012
Division 12941587 · Nov 8, 2010
Division 12363114 · Jan 30, 2009
Division 11622205 · Jan 11, 2007
Related Publication 20150078780A1 · Mar 19, 2015