Patent ID: 8433217
Filing Date: 2013-04-30
Classification: G03G

Abstract:
1. A photoreceptor, comprising: flanges attached to both ends of the photoreceptor in an axis direction thereof, respectively; a rotational shaft that is inserted into a shaft center of the photoreceptor rotatably supported by a main body frame of an image forming apparatus via a shaft bearing supported by a holder disposed to face one of the flanges; and a through hole formed in each of the flanges, wherein the holder includes: a cylindrical engaging portion; and a concave portion penetrating an outer periphery of the cylindrical engaging portion in the axial direction and being partitioned in a circumferential direction of the cylindrical engaging portion, wherein the through hole formed in each of the flanges and the concave portion provide an air passage, such that an air flow generated inside the photoreceptor is discharged outside via the air passage.