Liquid supply system, ink jet recording head, ink jet recording apparatus and liquid filling method
US6805437B2 · kind B2 · utility
20Cited by
5References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Jun 21, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17509
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention prevents drawbacks resulting from the bubble generated at the downstream side of the filter, while minimizing the waste in the ink. The recording head has a sub tank for storing ink supplied from the exterior, and a liquid chamber storing the ink supplied from the sub tank and supplying ink directly to a nozzle for ink discharge. A filter is provided between the sub tank and the liquid chamber. The liquid chamber holds ink of a predetermined amount in such a manner that the ink therein is separated by gas between the filter and the liquid chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.