Printer

Abstract

Abstract PURPOSE:To prevent abrasion loss of a specified pin and lengthen life a printing head significantly, by a method wherein use state of a ruled line printing pin is counted by a counter, and if the count value attains a prescribed value, a ruled line is printed by another pin. CONSTITUTION:At printing state, CPU1 outputs printing pattern from a character generator 2 in response to printing command, and drive circuits for pins are controlled in response to the printing pattern, thereby prescribed printing is performed. For example, a counter 3 checks operation state of a drive circuit 5 for No.12 pin and counts the operation number. If the operation number attains a prescribed value, the counter 3 detects this state and it is informed to the CPU1 that No.12 pin is operated by the prescribed number. Ruling after this state is performed so that No.13 pin outputs CG2 as ruled line pattern.

Inventors

• 👤 Kenichi Sueyoshi
• 👤 末吉　健一
• 👤 Masayuki Tanaka
• 👤 政行 田中

Bibliographic Details