Patent ID: 8270873
Filing Date: 2012-09-18
Classification: G03G

Abstract:
1. A tandem type photosensitive unit detachably mounted in a main body of an image forming apparatus, comprising: a plurality of parallelly arranged photosensitive drums; a first end-side shaft receiving member engaged with a first end portion of each photosensitive drum in an axial direction, the first end-side shaft receiving member integrally has a first end-side annular portion surrounding the outer periphery of the first end portion of each photosensitive drum and a protrusive portion extending along the central axis of the annular portion to protrude into the photosensitive drum; a second end-side shaft receiving member engaged with a second end portion, opposite to the first end portion, of each photosensitive drum in the axial direction, the second end-side shaft receiving member has a second end-side annular portion surrounding the outer periphery of the second end portion of each photosensitive drum without a protrusive portion extending along the central axis of the annular portion to protrude into the photosensitive drum; a conductive member coming into contact with the photosensitive drum and the protrusive portion; a first side plate collectively retaining each first end-side shaft receiving member; and a second side plate collectively retaining each second end-side shaft receiving member.