Patent Number: 7,822,364

Title: Image forming apparatus

Abstract: An image forming apparatus includes an apparatus main-body and a process cartridge. A female connector is arranged on a developing roller shaft in the process cartridge. The female connector has an open-ended ring-like space formed between an outer ring and an inner ring. A plurality of track grooves are arranged on the circumference of at least one of the outer ring and the inner ring. One end of a cartridge driving shaft is supported in the apparatus main-body, while the other end thereof facing the process cartridge is movable in a radial direction. A male connector is arranged on the movable end of the cartridge driving shaft. A front portion of the male connector is a cylindrical spherical-body holding portion that rotatably holds a plurality of spherical bodies. When the spherical-body holding portion enters into the ring-like space, the spherical bodies slide along the track grooves.

Inventors: Takigawa; Junya (Tokyo, JP), Asayama; Yoshimi (Mie, JP)

Assignee: Ricoh Company, Limited

International Classification: G03G 15/20 (20060101)

Expiration Date: 2018-10-26 0:00:00