| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus, preventing a sticking phenomenon on a paper delivery tray by spraying the air to a paper sheet to be cooled in a carrying path to early cool the paper sheet, and preventing lapping of a paper sheet, turn-back of a paper sheet, breakage of a paper sheet and jam of a paper sheet through the influence on carrying performance exerted by spraying the air to the paper sheet in the carrying path. SOLUTION: A cooling duct 78 is disposed between a first pair of carrying rollers 60 and a second pair of carrying rollers 63 in a second carrying path 43. Driven rollers 61, 64 are shaped so that the contact parts with the paper sheet are intermittent. When the paper sheet is held between at least one of the first pair of carrying rollers 60 and the second pair of carrying rollers 63, the rotation of the cooling fan 77 is started at a predetermined rotating speed, and blowing is performed in a predetermined quantity of cooling air. COPYRIGHT: (C)2011,JPO&INPIT |
