Ink jet recording head, ink jet recording apparatus using such ink jet recording head, and method for manufacturing ink jet recording head
US6799841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1623
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet recording head comprises an ink tank, a nozzle for discharging ink, a liquid chamber for retaining a specific amount of ink supplied from the ink tank through a filter, while supplying ink to the nozzle, and a covering member to be bonded to the liquid chamber, and on the circumference of the liquid chamber, a groove is formed to enable bonding agent to be coated therefor, and on the circumference of the covering member, an extrusion is formed to be fitted into the groove. For this ink jet recording head, gas releasing means is provided for releasing gas remaining in the bonding agent to the outside of the groove when the covering member is bonded to the liquid chamber by fitting the extrusion into the groove after the bonding agent is coated in the groove. With the structure thus arranged, it is possible to prevent leakage form occurring between liquid chambers, because voids are not formed by gas remaining in the bonding agent, which may connect liquid chambers adjacent to each other, and each of the liquid chambers is airtightly closed in the ink jet recording head for a better performance thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.