Inventor
MURAKAMI WAKAKO
JP8 patents
Patents
8 patentsUS7136610B2Nov 14, 2006
Image forming apparatus using installable process cartridge, method of positioning process cartridge, and process cartridge itself
RICOH KK38 citations92
US7024133B2Apr 4, 2006
Image forming apparatus using a user installable process cartridge, a method of arranging the process cartridge, and the process cartridge itself
RICOH KK50 citations92
US7460810B2Dec 2, 2008
Image forming apparatus having a cleaning roller for a charging roller of the apparatus
RICOH KK17 citations84
US7343132B2Mar 11, 2008
Image forming apparatus and process cartridge including sealable lubricating device
RICOH KK14 citations84
US7305203B2Dec 4, 2007
Image forming apparatus including a process cartridge formed with a hole
RICOH KK13 citations84
US7433615B2Oct 7, 2008
Method of and image forming apparatus for controlling a light exposure condition
RICOH KK9 citations82
US7639957B2Dec 29, 2009
Image forming apparatus including controller to detect condition of image developer
RICOH KK5 citations62
US7483648B2Jan 27, 2009
Process cartridge and image forming apparatus using the same
RICOH KK5 citations60