Thermal inkjet printhead
US8197032B2 · kind B2 · utility
0Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2008 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Mar 27, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1404
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal inkjet printhead that includes a substrate, a chamber layer stacked on the substrate, an ink chamber formed in the chamber layer, a heater to heat ink filled in the ink chamber to generate bubbles, and a nozzle layer stacked on the chamber layer, and including a nozzle formed in the nozzle layer, wherein a ratio of the volume of ink ejected through the nozzle with respect to the sum of the volumes of the ink chamber and the nozzle is in the range of approximately 40 to 60%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.