Drive circuit for thermal printer
US4345845A · kind A · utility
22Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1981 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Jun 19, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/325
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.