| 摘要 |
PURPOSE:To prevent a jam or the like due to a drop in separability of a sheet from a sensitizer from occurring, by altering the corrective quantity according to multi-copying and duplex copying, in case of an image former provided with a device for remedying a curvature on the sheet. CONSTITUTION:A pair of curl corrective rollers 38 are constituted of a rigid roller 39a consisting of a nonelastic material of resin or metal or the like, and an elastic roller 39b consisting of an elastic material of silicone sponge rubber or urethane or the like. This rigid body 39a is supported free of rotation by a side plate (unillustrated herein). And, this elastic roller 39b is rotatably supported by a bearing member 40, and this member 40 is designed so as to press the elastic roller 39b to the rigid roller 39a by actuation of a cam 41. In addition, this cam 41 is connected to a motor 42 serving as a power source. And, this motor 42 detects duplex-multi-copying mode setting signal 43 and it is connected to a control circuit 45 controlling this motor 42. |
