| 摘要 |
PURPOSE:To eliminate gradation irregularity and the density gradient in the generatrix direction of a photoreceptor drum. CONSTITUTION:A belt-like nip part N which is long in the generatirix direction is formed by makimg the photoreceptor 1 abut on an electrifying roller 2. A first gap G1 and a second gap G2 are respectively formed on the upstream side and downstream side from the nip part N. A destaticizing LED 11 which is long along the nip part N is arranged, and the entire area of a surface 1a to be electrified on the gap G1 can be irradiated. The destaticizing LED 11 can be lighted on/off and whose input voltage can be varied every single or plural arrays, and can be operated by the operating panel of an image forming device main body. The destaticizing LED 11 can be lighted on/off every array in accordance with the gradation irregularity and the density gradient in the generatirix direction of the surface 1a to be electrified on the photoreceptor 1, so that density irregularity, etc., can be eliminated. |
