Voltage adjusting system and method for adjusting driving voltage of thermal print head
US7492382B2 · kind B2 · utility
0Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2007 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Oct 4, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/3558
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a voltage adjusting system and method for adjusting a driving voltage of a thermal print head by utilizing an electronic variable resistor. The voltage adjusting system includes a power converter, a voltage divider, an analog-to-digital converter (ADC), and a controller. The system and method of the present invention obtains a detecting voltage value through a feedback mechanism and the ADC, and then utilizes the detecting voltage value to control the electronic variable resistor implemented in the voltage divider to adjust the driving voltage of the thermal print head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.