Diaphragm type ink jet head having a high degree of integration and a high ink discharge efficiency
US5719604A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1995 |
| Grant date | Feb 17, 1998 |
| Priority date | — |
| Expiry date | Jul 31, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14346
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A pressure generating member applies a pressure to an ink, the member having a symmetric configuration and including a buckling body. The buckling body may include a radially extending ribbed portion on its upper surface and no buckling layer beneath it. A heater layer is interposed between insulating layers for heating the buckling body, the buckling body having its peripheral edge portion fixed on a substrate. A center portion of the buckling body is buckled by being heated. An orifice plate is arranged so as to cover the pressure generating member with interposition of a gap defining a cavity for the ink. The orifice plate is provided with a nozzle serving as an ink discharge outlet located in a portion of the orifice plate opposite to the pressure generating member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.