| 摘要 |
<p>PURPOSE:To prevent transfer missing and deviation in an image by reducing generation of wrinkling which tend to form when an envelope is fed. CONSTITUTION:The generation of wrinkling is prevented by providing a flap opening mechanism 20 opening a flap fa of the envelope Pf with the flap fa in a closed state upstream in the carrying direction than a paper ejection tray, and ejecting the envelope Pf, which was fed in a state where the wrinkling is easily generated with the flap closed and the paper overlapped with each other, in a state where the flap fa is opened. The flap opening mechanisms 20 are effective if they are provided downstream in the carrying direction of a fixing device 21, upstream of the carrying direction of an image transferring part, and furthermore in a paper feeding part, and if they are provided each to upstream and downstream of an image transferring part and operated selectively, the flap can be opened even after being printed with the flap closed in a printing where an image is on the flap.</p> |
