| 摘要 |
<p>PURPOSE:To make easily and precisely a printing pulse width variable, by constituting the title circuit so that the printing pulse width of a pulse generating circuit can be changed at any time by software. CONSTITUTION:A microcomputer 1 sets up output printing pulse width to individuals of counters 4a-7c in accordance with a procedure of a program. Then the counters 4a-7c receive a trigger signal 9 and put out a pulse by the printing pulse width set up to a computer a little while ago. Then when output of the printing pulse of the counters 4a-7c is put out completely, the computer 1 sets up the printing pulse width, which will be put out next, to the counters 4a-7c and the counters 4a-7c which have received the signal 9 similarly to that of the last time put out the pulse by the set-up printing pulse width. On and after this, simultaneously with the signal 9 the printing pulse is put out by repeating the procedure and driving and printing of a head 11 are performed. Hereupon, since the set up printing pulse width is described on software, the same can be set up arbitrarily by rewriting the software.</p> |
