Method and apparatus to regulate temperature of printheads
US10124582B2 · kind B2 · utility
0Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2011 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Jul 1, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/195
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus including an analog memory, a temperature sensor, a comparator, and a pulse circuit. The analog memory is charged to a reference voltage corresponding to a predetermined temperature of a printhead. The temperature sensor measures a thermal voltage of at least one of the plurality of local areas of the printhead. The comparator obtains a comparison result by comparing the reference voltage to the thermal voltage. The pulse circuit selectively transmits a series of warming pulses to the at least one of the plurality of local areas of the printhead based on the comparison result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.