| 摘要 |
PURPOSE:To prevent slidings of a position and an angle at the time of paper feeding by adjusting a pressing power of a friction roller at lengthwise two positions of a platen for controlling the feeding amount of papers at these two positions. CONSTITUTION:Conditions of position and angle of a paper 5 are detected by a sensor 16, and inputted in a conversion circuit 10 via a signal cable 9. The conversion circuit 10 emits a position signal showing the balance of feeding amount and an absolute amount of feeding of the paper 5 at lengthwise two positions of a platen 1 for outputting to a control circuit 12 via a signal line 11. The control circuit 12 detects the lag of the feeding amount of the paper 5 at the two lengthwise positions of the platen 1, and a signal to correct this lag is sent to a driver circuit 14 via a signal line 13. As the result, a motor 6 is driven via a signal line 15, and furthermore, when a pressure adjusting cam 8 is rotated to oscillate an arm 4, the pressing power of the friction roller 2 is adjusted to achieve the initial purpose. |
