Susumu Nittani

Developing device and process cartridge

Process cartridge, image forming apparatus and separating mechanism for separating developing member from photosensitive drum

Process cartridge, positioning mechanism therefor and electrophotographic image forming apparatus

Process cartridge and holding member

Process cartridge and assemblying method therefor

DEVELOPER CONTAINER HAVING A GRIP MEMBER, PROCESS CARTRIDGE MOUNTABLE TO AN IMAGE FORMING APPARATUS HAVING SUCH A DEVELOPER CONTAINER, AN IMAGE FORMING APPARATUS DETACHABLY MOUNTING A PROCESS CARTRIDGE HAVING SUCH A DEVELOPER CONTAINER, A BEARING STRUCTURE HAVING A GRIP MEMBER, AND A SIDE COVER HAVING A GRIP MEMBER

Image forming apparatus detachably mounting a process cartridge having developing roller movable to contact and be spaced from a photosensitive drum

Developer container, developing container, developing device, process cartridge, side cover, bearing structrue, and image forming apparatus

Developing device, developing cartridge, and process cartridge each urging developing roller into regulating portion, and image forming apparatus having such developing device or process cartridge

Side cover of developing cartridge, mounting method thereof and developing cartridge