Shaft member, end member, photoreceptor drum unit, developing roller unit, and process cartridge

A process cartridge which is mounted on an image forming apparatus main body, comprising:

• a housing;
• and
• a photoreceptor drum unit which is disposed in the housing,
• wherein the photoreceptor drum unit includes a photoreceptor drum and an end member disposed in at least one end portion of the photoreceptor drum,
• wherein the end member includes a tubular bearing member and a shaft member held by the bearing member,
• wherein the shaft member includes a rotating shaft which oscillates within a range of 18° or less with respect to a direction along an axis of the bearing member, and is movable in the axial direction,
• wherein the housing includes a recessed operating portion which is used when a user pulls out the process cartridge from the image forming apparatus main body, and
• wherein the operating portion is provided being deviated to a side opposite to the end member side to be engaged with a driving shaft of the image forming apparatus main body, from the center in a width direction that is a direction in which the axis of the photoreceptor drum unit extends.

A process cartridge which is mounted on an image forming apparatus main body, comprising:

• a housing;
• and
• a photoreceptor drum unit which is disposed in the housing,
• wherein the photoreceptor drum unit includes a photoreceptor drum and an end member disposed in at least one end portion of the photoreceptor drum,
• wherein the end member includes a tubular bearing member and a shaft member held by the bearing member,
• wherein the shaft member includes a rotating shaft which oscillates within a range of 18° or less with respect to a direction along an axis of the bearing member, and is movable in the axial direction,
• wherein the housing includes a recessed operating portion which is used when a user pulls out the process cartridge from the image forming apparatus main body, and
• wherein the operating portion is provided while blocking a part of the recessed operating portion which is the end member side to be engaged with a driving shaft of the image forming apparatus main body rather than the center in a width direction that is a direction in which the axis of the photoreceptor drum unit extends.