| 摘要 |
PURPOSE:To prevent a generation of abnormality of a machine and an image owing to an excess or a shortage of bending amount by maintaining the bending amount of a transfer paper between a photosensitive body and a resist roller or a fixed roll to make in an adequate value constantly. CONSTITUTION:In a conveying passage of transfer papers between a photosensitive body drum 1 and a resist roller 4 or a fixed roller 11, transfer paper bending detecting devices 17a and 17b are provided, a transfer paper is passed for regulating, and from the difference between the detected bending of the transfer paper and an adequate bending amount, the speed of the resist roller 4 or the fixed roller 11 necessary to release the difference is operated. And one side member is moved to increase or decrease the width of a V-groove of two-piece V pulleys 22a and 22b provided at the shaft end of the resist roller 4 or the fixed roller 11, and the rotation speed of the rollers is controlled automatically so as to obtain an adequate bending. |
