| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a double-side image forming device capable of preventing variation in matching with a registering means for paper on which printing is finished on one side when printing is performed on the double sides. <P>SOLUTION: This double-side image forming device comprises a main conveying passage F for conveying paper from a paper feeding cassette 80 to a paper delivery tray 81 through a transfer nip section of a photosensitive drum 21 and a transfer roller 29 and a fixing nip section of a heating roller 31 and a press roller 33, an inversion conveying passage R which communicates with the main conveying passage F on the upstream side and the downstream side and conveys paper inside out, and a registration roller 38 for feeding the paper from the paper feeding cassette 80 or the inversion conveying passage R to the transfer nip section, and conveying rollers 92 and 93 for feeding the paper from the inversion conveying passage R to the registration roller 38. In the double-side image forming device, paper conveying speed is reduced between the conveying roller 93 on the most downstream side and the registration roller 38 on the way of paper conveyance in the inversion conveying passage R. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
