Inkjet printing system having extended heater resistor life
US6752491B2 · kind B2 · utility
2Cited by
4References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2002 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Aug 26, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/175
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet printer having an ink delivery system that allows air to be absorbed by ink that is being delivered to an ink jet print cartridge that includes a thermal printhead, so that ink delivered to the printhead has an air saturation level of at least 30%. The dissolved air reduces damage to heater resistors of the thermal ink jet printhead that would otherwise be caused by the in rush of ink after an ink drop is fired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.