Liquid ejection head and image forming apparatus
US8052248B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2009 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Sep 4, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a liquid ejection head that includes a flow path member having provided therein plural liquid chambers respectively in communication with plural nozzles that eject a liquid droplet and are arranged side by side; a vibration plate member that forms at least a part of wall surfaces of the liquid chambers; plural piezoelectric element columns that deform the vibration plate member at positions corresponding to the liquid chambers; a supporting column that corresponds to a partition wall sandwiched between the liquid chambers; and a base member on which the plural piezoelectric element columns and the supporting column are arranged. The supporting column is arranged so as to be sandwiched between a group of two or more of the consecutive piezoelectric element columns in a nozzle arrangement direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.