| 摘要 |
<p>PROBLEM TO BE SOLVED: To excellently sort transfer papers, when a transfer paper sorter is connected, in a two-picture mode, without increasing the scale of a device. SOLUTION: This multicolor image forming device is constituted so that toner images primarily transferred from a photoreceptor drum 24 to an intermediate transfer belt 27 are transferred to a transfer material altogether by a secondary transfer unit 63. At this time, an approach detecting means 52 for detecting the approach for fixing of the preceding transfer paper is provided in the vicinity of the entrance of a fixing device 70 and a passage detecting means 51 for detecting the tailing edge of the succeeding transfer paper is provided in the vicinity of the secondary transfer unit 63. When the preceding transfer paper approaches the fixing device 70 and the succeeding transfer paper passes through the secondary transfer unit 63, a control means controls the intervals of the transfer papers by reduction in the carrying speed of a carrying device 50, etc.</p> |
