Thermal printer element tester
US6760053B2 · kind B2 · utility
6Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2002 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jul 5, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/393
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal transfer printer has been described that includes a print head integrity tester. The tester measures a resistance of each thermal element of the print head to determine if an element is defective. In one embodiment, the resistance is measured by monitoring a current through the element and comparing to a reference. The printer can also include a power strobe adjustment that automatically adjusts the power applied to the print head elements as the thermal elements age.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.