Ink jet recording head
US5424769A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Jun 4, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet recording head having a spacer including a pressure generating chamber, a reservoir, and an ink supply port connecting them, a nozzle plate, hermetically fixed on a first side of the spacer, for generating ink droplets when receiving an ink pressure from the pressure generating chamber, a vibrating plate, hermetically fixed on a second side of the spacer, for pressing the pressure generating chamber, and piezoelectric vibrators for pressing the vibrating plate, wherein the vibrating plate has thin portions each occupying a large area so that the compliance of a regional area closer to the nozzle openings is larger than a regional area closer to the ink supply port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.