| 摘要 |
<p>PURPOSE:To eliminate the excess sagging or tension of a paper and to always excellently perform the transfer of an image at a transfer position by properly controlling the deflection quantity of a paper on a conveyance path between the transfer position and a fixing position in an image processor. CONSTITUTION:When the leading edge of the copying paper 31 is fed between a heat roll 58 and a pressure roll 59, a feeding speed V2 in this part becomes a little higher than a feeding speed V1 from the transfer position A because a driving source 67 is initially set in a high speed mode. Therefore, the down ward loop of the copying paper 31 is gradually absorbed. With such absorption, a star wheel 64 moves upward, which is detected by a sensor 66. When the detection is performed by the sensor 66, the driving source 67 drives the heat roll 58 and the pressure roll 59 in a low speed mode until the star wheel 64 descends to a lower limited position again. Thus, the copying paper 31 is fed between both guiding plates 61 and 62 while forming the loop with a certain variable width.</p> |
