| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the accuracy of registration in processing for the first face of a recording material which has a first side face and a second side face located at the opposite side to the first side face and in processing for the second face of the recording material which is turned upside down for changeover between the first side face and the second side face. <P>SOLUTION: At the downstream side of a first carrying roll 44, a first side detecting sensor SK1 and a second side detecting sensor SK2 are provided for detecting sides of paper. At the upstream side of the first carrying roll 44, a third side detecting sensor SK3 and a fourth side detecting sensor SK4 are also provided for detecting the sides of the paper. The first side detecting sensor SK1 and the third side detecting sensor SK3 are disposed at the corner side of an image forming device so as to detect one side of the paper to be carried. On the other hand, the second side detecting sensor SK2 and the fourth side detecting sensor SK4 are disposed at the front side of the image forming device so as to detect the other side of the paper. <P>COPYRIGHT: (C)2013,JPO&INPIT |
