发明授权
- 专利标题: Drive circuit for thermal printer
- 专利标题(中): 热敏打印机的驱动电路
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申请号: US275183申请日: 1981-06-19
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公开(公告)号: US4345845A公开(公告)日: 1982-08-24
- 发明人: Alan E. Bohnhoff , Bruce M. Cassidy , Stanley Dyer
- 申请人: Alan E. Bohnhoff , Bruce M. Cassidy , Stanley Dyer
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: B41J2/32
- IPC分类号: B41J2/32 ; B41J2/325 ; B41J2/355 ; B41J2/425 ; B41J3/02
摘要:
An electrode drive configuration for a resistive ribbon thermal printer utilizes as a feedback a monitored signal representative of an internal ribbon voltage at the print point. A monitoring contact is preferably located on the opposite side of the printhead from the drive signal return contact and the feedback signal is used to cancel the effects voltage drop variations in the common return portion of the drive signal path.
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