| 摘要 |
PURPOSE:To contrive prevention of color misregister in superimposing recording, by printing position marks on a recording paper at regular intervals, storing the number of the position marks counted in feeding the recording paper in one direction, and controlling the feeding distance of the paper by referring to the stored number when feeding the paper in the opposite direction. CONSTITUTION:A selector 81 supplies motor clocks CL to an UP input terminal of an up-down counter 84 according to a high-level mode switching signal M, and the counter 84 counts up the motor clocks CL. When the first position mark has been read by a recording part 5 and a position signal S has been supplied to an FF 86 in a drive-controlling circuit 8, the counting operation of the counter 84 is stopped. Simultaneously, the position signal S is counted up by an up-down counter 85. In reverse rotation of a motor, the counter 85 counts down the position signals S. When backward feeding of a recording paper 1 proceeds and the up-down counter 85 detects zero (0), the counter 84 starts counting down the motor clocks CL. When the counter 84 detects zero (0), driving power supplied from a motor driver 88 is cut off, whereby the recording paper 1 is stopped, and the motor clock CL is also stopped. |
