| 摘要 |
PURPOSE:To reduce the time of occupation of a circuit, by providing a space signal generating circuit at the side of a printer and inserting a designated number of space signals into pattern signals when the unit length is obtained for the designated character. CONSTITUTION:A host CPU1 transmits via a circuit 2 character patterns a1-ap of 7 dots in the row direction, for instance, after the dot number (k) in the digit direction forming a character, the transfer character number (p) and the space dot number (l). A printer discriminates these signals and converts them into parallel 7 bits. Then signals K, P and l are suppled to a counter 4, a CPU5 and a space signal generating circuit 6 respectively. The patterns a1-an are supplied to a memory 7. An inserting circuit 8 supplies the space length signal (l) from a space signal generating circuit 5 with each dot number (k) and with the output given from the counter 4 together with the pattern signals a1-an. Then a head 5b and a motor 5a are driven via the CPU5 to perform the dot printing. The CPU5 prints the designated character number P and finishes the printing operation. In such a way, the circuit occupying time is shortened. |
