| 摘要 |
PURPOSE:To effectively perform stressed printing to be seen like shadows by a method in which the second printing is made with smaller energy than the first printing in the same shape as the first printing by slightly biasing its position from the first printing. CONSTITUTION:Two kinds (long and short) of time data X and Y (X>Y) are put in data of a down counter 10, and an electrification starting command (c) for printing is given to S input of a flip-flop 11. An electrification pulse (e) is given to print hammers 8, and at the same time as the printing operation is made, clock pulse from the rising edge of the electrification pulse (e) is counted by the down counter 10. In the case of the first printing, when counting is ended at the time data X, BRW is sent out, the flip-flop 11 is reset through an OR gate 12, and the electrification is ended. The printing position is then biased slightly, time data Y are given, and the flip-flop 11 is reset to cease the electrification. In the case of the second printing, printing of slightly smaller density is made. |
