ABUTMENT REGULATING ROLLER FOR DEVELOPING ROLLER AND DEVELOPING CARTRIDGE PROVIDED WITH THE SAME

摘要

PROBLEM TO BE SOLVED: To provide the abutment regulating roller of a developing roller in which a rotary shaft is prevented from being caught by the inner peripheral surface of the abutment regulating roller even though the rotary shaft of the developing roller is inclined to the abutment regulating roller.;SOLUTION: A developing cartridge 12 is provided with a developing roller 55 and two abutment regulating rollers 69 respectively rotatably provided in the periphery of a rotary shaft 135 of the developing roller and having an outside diameter dimension slightly larger than that of the developing roller, and the abutment regulating roller is provided with a roller main body part 181, a roller actuating part 183 expanded in a disk-like state from the outer peripheral surface of the roller main body part and formed at a center in a rotary axial direction and an inner protrusion 185 formed at the center in the rotary axial direction on the inner peripheral surface of the roller body, and the rotary shaft 135 of the developing roller is supported in a state that it comes into contact with only the inner protrusion 185.;COPYRIGHT: (C)2004,JPO&NCIPI