Ink ejection head for printer
US4045801A · kind A · utility
13Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1976 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | May 26, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Ink is fed into an ink supply chamber communicating through axially aligned orifices with a pressure chamber and an ejection chamber. An ejection orifice or nozzle opens from the ejection chamber toward a copy sheet for printing. An electrical signal fed to an electrostrictive member defining part of the wall of the pressure chamber causes the volume of the pressure chamber to be reduced thereby ejecting ink out of the ejection orifice. The ejection chamber may also be provided with an electrostrictive member to which the electrical signal is also applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.