| 摘要 |
<p>PURPOSE:To prevent miss copy by correcting the oblique feeding through rotation of a roller to be driven by a motor in the way of a carrier while correcting the shifting through motion of entire correcting system simultaneously with carrying thereby performing positional correction of paper stably with high speed without causing jamming. CONSTITUTION:Upon turning on of sensor Ai in the photo-sensors 10 at the inlet of a correction system followed by turning on of Ai+1, Ai-1 after elapsing predetermined time, it is decided to be oblique paper feeding to calculate the amount vt of oblique feeding and the inclination of paper tantheta thus to control the motors M1, M2, M3 accordingly and to correct the paper. Upon turning on of Bi in the photo-sensors 11 at the inlet of correction system, the motor M1 or M3 is stopped to wait until the inclination of paper will be zero while to bring the speed of the motors M1, M2, M3 to be same with the carrying speed (v) thus to detect the size and shift of paper and to drive the motor M4 to correct the shifting. Upon turning off of all sensors at the outlet of the correction system, the entire correction system is reset by the motor M4 to finish the correction control.</p> |
