| 摘要 |
PURPOSE:To restrain the surface potential of a photosensitive body from lowering and to obtain an excellent image without fogging as to printing quality by specifying the wavelength of destaticizing light. CONSTITUTION:Since electric field is hardly impressed on an exposing part in the case of destaticization, carrier is generated in a charge generation layer and the carrier, especially negative charge, is easy to be left in a boundary between a surface protective layer and the charge generation layer or in the charge generation layer when the light of long wavelength is made to irradiate. Therefore, in an electrostatic charging process which is a next process, the remaining carrier and positive charging negate each other and the surface potential of the photosensitive body lowers. By setting the wavelength of the destaticizing light at <=680nm on the basis of such mechanism, the negative space charge is made as little as possible. Thus, the electrostatic charging potential is suppressed from lowering and excellent printing without fogging is accomplished. |
