| 摘要 |
PURPOSE:To prevent a form from winding around a heat roll, by turning intermittently the heat roll counterclockwise and clockwise alternately during the form loading operation to reduce respective generated quantities of static electricity of the heat roll and the form. CONSTITUTION:A triggerrable FF35 is set through an FF29 which is set in the form loading time, and simultaneously, a counter 32 is reset. Each time the counter 32 counts a prescribed number of clocks, a monostable multivibrator 33 is triggerred, and a heat roll controlling circuit 26 is controlled by the output of the FF35 which is inverted for every output of the multivibrator 33. A heat roll is turned intermittently counterclockwise and clockwise alternately in every prescribed time repeatedly through a motor driving circuit 27 which is made active only in the output time of the multivibrator 33 through an AND gate 30. Thus, respective generated quantities of static electricity of the heat roll and the form are reduced to prevent the form from winding around the heat roll by static electricity. |
