| 摘要 |
PURPOSE:To know a fact that an unauthorized use such as a surreptitious copy, etc., and a wasteful use are executed and its contents and to improve the efficiency of management by providing an unauthorized use prevention means consisting of a reserved process system. CONSTITUTION:A light beam from a light source lamp 20 is divided into double optical paths, which are respectively transmitted to a regular process system 30 and the reserved process system 40 wit the actions of a lens 21 and a mirror 22. The reserved process system 40 installs a photosensitive drum 41, a charging device 42, a developing device 43, a transfer device 44 and a destaticizing device 45, etc., as well as the regular process system 30. Paper 46 is carried from a paper roll 47 ad wound to a copy roll 48 after an electrostatic latent image is transferred and fixed on the paper. Thus, the fact that the unauthorized use such as the surreptitious copy, etc., and the wasteful use are executed and its contents can be known and the efficiency of management can be extremely improved. |
