| 摘要 |
<p>PURPOSE:To prevent the soiling and winding of a sheet by reversely rotating a driving motor for a constant period set in advance just after jamming is detected. CONSTITUTION:The sheet on which toner is transferred from a photosensitive body is carried to the contact part of a heating roller 1 and a pressure roller 3. At this time, the driving motor 4 normally rotates the roller 1 like the allow C, the roller 3 is rotated like the arrow D, and the sheet is ejected in the direction of the arrow B. At this time, the sheet passes a paper end sensor, and time till the sheet reaches an ejecting sensor 7 after the sheet is fixed, is controlled by a controller 6. When the controller 6 detects the jamming, it interrupts all processes, and then, the motor 4 is reversely rotated only for the constant time set in advance. Thus, the sheet remaining on the rollers 1 and 3 is ejected in the opposite direction where the sheet is ejected. Thus, the causes of the soiling, the winding, etc., of the sheet can be prevented.</p> |
