| 摘要 |
PURPOSE:To prevent an image defect such as white streak by uniformly electrifying an electrification surface. CONSTITUTION:By making the electrification surface 1a of a photosensitive drum 1, which moves in the direction shown by an arrow R1, abut on an electrifying roller 2, a first gap G1 is formed on the upstream side of the abutting part N and a second gap G2 is formed on its downstream side. A fuse lamp (light irradiation device) 11 is arranged on the upstream side of the abutting part N. A bias is applied to the electrifying roller 2 by a power source 3 to electrify the electrification surface 1a. At this time, the electrification surface 1a in the first gap G1 is irradiated with light by the fuse lamp 11 to remove charges. Thus, the electrification of the electrification surface 1a by the use of the electrifying roller 2 is carried out via the abutting part N and the second gap G2, and the separation of charges from the electrification surface 1a is prevented in the second gap G2. |
