Patent ID: 8213834
Filing Date: 2012-07-03
Classification: G03G

Abstract:
1. A photoconductive drum comprising: a photoconductive sleeve member having a hollow cylindrical shape and having a photoconductive outer circumferential surface; a first end surface member configured to be engaged with an end of the photoconductive sleeve member in a center line direction of the photoconductive sleeve member; a second end surface member configured to be engaged with another end of the photoconductive sleeve member in the center line direction of the photoconductive sleeve member; a contacting unit disposed in the first end surface member and including an operation member, the contacting unit being configured to be operated to select one of a contacting mode and a non-contacting mode due to an operation of the operation member, the contacting mode indicating that the first end surface member is engaged with the photoconductive sleeve member, the non-contacting mode indicating that the engagement is released between the first end surface member and the photoconductive sleeve member; and a sleeve inner circumferential surface pressing member disposed in the contacting unit and configured to be operated due to the operation of the operation member to select one of a state where the sleeve inner circumferential surface pressing member is in contact with and presses an inner circumferential surface of the photoconductive sleeve member so that the first end surface member is engaged with the photoconductive sleeve member and a state where the sleeve inner circumferential surface pressing member is not in contact with the inner circumferential surface of the photoconductive sleeve member so that the engagement is released between the first end surface member and the photoconductive sleeve member, wherein the photoconductive drum includes a mechanism where, when the sleeve inner circumferential surface pressing member is in contact with the inner circumferential surface of the photoconductive sleeve member, a displacement of the first end surface member with respect to the photoconductive sleeve member in the center line direction leads to increasing a pressing force applied from the sleeve inner circumferential surface pressing member to the inner circumferential surface of the photoconductive sleeve member.