| http://www.w3.org/ns/prov#value | - 30, 2001Canon Kabushiki KaishaProcess cartridge and image forming apparatus including means for detecting mounting of the process cartridge to main body of image forming apparatus, and process cartridge and developer cartridge including positioning portionUS6345164 *Aug 31, 1999Feb 5, 2002Canon Kabushiki KaishaShutter pin and developing cartridgeUS6381430 *Aug 31, 1999Apr 30, 2002Canon Kabushiki K
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