| 摘要 |
<p>PURPOSE: To reduce the cost by making an image forming device having a nonstack ADU compact, improve the operability of the jamming processing when it is made compact, and improve the image productivity by stabilizing return in a double-sided mode. CONSTITUTION: An image forming device has a first lower carrying passage 26 to reintroduce a transfer material on which an image is formed by an image forming part 100 to a regist roller 210 and passing detecting sensors PS4 and PS5 to detect that it reaches a reference position in the carrying passage, and has a switch back carrying mechanism 310 to carry it by switching the carrying direction of the carrying passage by detecting signals from the passing detecting sensors PS4 and PS5, and has a temporarily stopping mechanism 320 in the carrying direction of the switch back carrying mechanism 310.</p> |
