| 摘要 |
PURPOSE:To make possible non feeding condition in a printer to be detected automatically by detecting that a blank is not fed from a feeding section to a printing drum with a regular timing during a printing electrically. CONSTITUTION:The pulses of '36' times are generated in one rotation of a printing drum by a timing pulse generator 1, on the other hand, '37' is memorized as the pulse number in a setting memory section 6. A counter 4 counts till '35' and becomes to '0' being set by a feeding paper detecting signal from a feeding paper detecter 2. The counter 4 is not reset and counts till '37', since the feeding detecting signal is not sent from the feeding paper detector 2 even though the counting till '35' is completed when a non feeding condition is generated. In this time, a coincidence signal is outputted by a comparator 5, since an output is coincided to a setting value of the setting memory section 6, and non feeding memory signal is generated and outputted to an alarm device 8 and alarmed by a non feeding memory circuit 7. |
