| 摘要 |
<p>PURPOSE:To provide a system which reflects an error at positioning of print caused by open loop control and makes specifying of a factor of occurrence of broken character easy and alarms it. CONSTITUTION:The title system has a mark sensor part 4 detecting position of a paper and a logical control part 2 performing print control. A motor driving part 3 inputs a motor driving pulse output from the logical control part 2 and drives a step motor. A broken character alarming part 7 outputting an alarm based on detection of a broken character detecting part 6 is also provided. A rotary encoder 5 is mounted on a printer unit 1 and an information from the rotary encoder 5 is given to the logical control part 2 to perform a closed loop control.</p> |
