| 摘要 |
PURPOSE:To constitute a photosensitive drum and members arranged around the photosensitive drum as one unit, as to an image forming device such as an electrophotographic copying machine and a printer, etc., and also, to fascilitate a waste treating by constituting the unit of burnable materials as to the aforesaid unit which can be attached/detached to/from the device main body. CONSTITUTION:As to an image forming unit 20 used for the image forming device such as a laser printer, the photosensitive drum 21, a cleaning device 30, a developing device 40 and an electrostatic charging roller 50 are integrated into one body, and the electrostatic charging roller 50 is integrally arranged with the aforesaid unit. In the unit 20, the frame for each constitutional element and a member supported by each frmae are constituted by using materials such as thermoplastic resin, a paper, a kind of pulp and animal fiber, etc. And also, the photosensitive drum is constituted of conductive thermoplastic resin, and a photosensitive layer is integrally formed on the surface of the base material, and an electrostatic charger is constituted of conductive rubber and the thermoplastic resin having conductivity. |
