| 摘要 |
PROBLEM TO BE SOLVED: To arrange a shutter member without increase in an amount of light for a pre-exposure.SOLUTION: A process cartridge attachable/detachable to and from an image formation device body has: a pre-exposure member that is arranged along an axial line direction of a photoreceptor drum, irradiates an entire area in the axial line direction of the photoreceptor drum with light received from a light reception unit of one end part in the axial line direction on an upstream side in a rotation direction of the photoreceptor drum from an electric charging member, and exposes a surface of the photoreceptor drum; and a shutter member that has a rotating unit supported in a freely rotating way relative to a process cartridge, and rotates between a closing position covering the surface of the photoreceptor and an opening position located on a downstream side in the rotation direction of the photoreceptor drum further than the closing position and causing the surface of the photoreceptor drum to be exposed. The light reception unit is located outside the rotating unit in the axial line direction of the photoreceptor drum.SELECTED DRAWING: Figure 1 |
