| 摘要 |
PURPOSE:To assuredly fold up the terminal end of paper in a paper folder of a printer or the like by swivelling a swing fin in response to a pseudo-signal longer than a paper feed signal after paper cutting and then restoring the fin to the initial position. CONSTITUTION:A flip-flop 24 is set when receives a cut command generated when a fold for cutting reaches a cutting position, and an AND gate 30 is closed by an output of O side to prohibit a paper feed signal from inputting to a digital control portion 22. A down-counter 23 is loaded with paper feed information and subtracted by pulse of an oscillator 21. Simultaneously, an oscillating pulse is input to the digital control portion 22 through an AND gate 31 and an OR gate 32, so that a swing fin 8 is moved slowly by a motor 26. When the terminal of paper reaches the forward end of the fin 8, the total output of the down-counter 23 goes to 0 so as to restore the fin to its intial state. Thus, paper can be assuredly folded up to the terminal end, so that the leading end of the following paper can be easily processed. |
