Ink-jet head and ink-jet recording device
US7562970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2007 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Mar 19, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In one embodiment, the disclosure relates to an ink-jet head including an ink chamber, a pressure chamber in communication with the ink chamber, a nozzle for ejecting an ink in communication with the pressure chamber, a piezoelectric actuator for applying an ejection pressure to an ink in the pressure chamber, and an ink passage extending from a boundary of the ink chamber to a tip of the nozzle. The tip of the nozzle has an aperture diameter of from about 15 to about 25 μm, and the ink passage is configured such that when an ink having a viscosity of from about 2.5 to about 3 mPa·s is passed therethrough, a passage resistance value of the ink passage is from about 50 to about 100 kPa·s/mm3. Another embodiment of the disclosure relates to an ink-jet recording device containing such an ink-jet head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.