Patent ID: 8606144

Claim:
A process cartridge comprising: a photosensitive drum that is configured to be rotatable around a first rotational axis extending in a first direction, wherein the photosensitive drum comprises a drum main body and a flange member fixed to an end portion of the drum main body at the first direction; a drum drive input member that is configured to receive a driving force for rotating the photosensitive drum and is disposed on the first rotational axis of the photosensitive drum; a developing roller that is configured to supply developer to the photosensitive drum and is configured to be rotatable around a second rotational axis extending along the first rotational axis; and a frame comprising: a first projecting portion projecting outwardly from the frame in the first direction; a second projecting portion projecting outwardly from the frame in the first direction; a first end portion; and a second end portion that is opposite to the first end portion in a direction perpendicular to both of the first rotational axis and the second rotational axis, wherein the first projecting portion is disposed around the drum drive input member, wherein the first projecting portion has a first portion that has a first projecting amount and a second portion that has a second projecting amount larger than the first projecting amount, wherein the first projecting portion is disposed in a vicinity of the first end portion, and wherein the second projecting portion is disposed in a vicinity of the second end portion.