| 摘要 |
<p>PURPOSE:To correct a difference between the feeding speeds of the front surface and the back surface of a sheet material and to prevent wrinkles from occurring by disposing a carrying and pressure roller on a fixing roller side with respect to a vertical direction in the case of setting the sheet material as center. CONSTITUTION:Since the surface layer of the pressure roller 2 presscontacting with the rigid fixing roller 1 is made of an elastic body, a nip formed between both rollers has a concaved shape toward the pressure roller 2. Therefore, the feeding speed of the sheet material passing through the nip gets high on a side contacting with the surface of the roller 2. Meanwhile, the carrying and pressure roller 10 having the surface layer made of the elastic body is disposed on the fixing roller 1 side with respect to the vertical direction to the sheet material, so that the nip formed between the roller 10 and the rigid roller 11 has a inversed shape to the shape of the nip between the rollers 1 and 2. Therefore, the feeding speed of the sheet material in the nip between the rollers 11 and 10 is made higher on a side where it comes in contact with the surface of the roller 10.</p> |
