Photosensitive drum and image forming apparatus having the same

摘要

A photosensitive drum has a drum sleeve and a pair of drum flanges. At least one of the pair of drum flanges each has a flange part, a retaining part, and a linking part. The flange part is fitted to the drum sleeve. The retaining part, which is located inward of the flange part in the axial direction of the drum sleeve, pivotably supports a shaft that rotates the photosensitive drum. Openings are formed between the flange part and the retaining part in a direction intersecting the axial direction. An air flow enters the interior of the photosensitive drum from the openings.

主权项

1. A photosensitive drum comprising:
a drum sleeve, on a surface of which a latent image is formed, the drum sleeve supporting a toner image formed based the latent image; a pair of drum flanges fitted to both ends of the drum sleeve, at least one of the drum flanges including a flange part that rotatably supports the drum sleeve in an integrated manner, a retaining part that retains a drum shaft and acts as a rotational axis when the drum sleeve rotates, an outside surface of the retaining part in an axial direction of the drum sleeve being located inward of the flange part in the axial direction of the drum sleeve, and a linking part that links the flange part and the retaining part together; and an opening is formed between the retaining part and the flange part of the pair of drum flanges each in a plane intersecting the axial direction, the opening communicating with a cylindrical interior of the drum sleeve.