Liquid ejecting head and liquid ejecting apparatus
US8622526B2 · kind B2 · utility
1Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | May 4, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A nozzle plate made of conductive ceramics is grounded. Therefore, electric charges do not easily accumulate on the nozzle plate. The migration of electric charges from nozzle orifices to a diaphragm plate through ink filled in pressure generation chambers is unlikely to occur or significantly less likely to occur. Thus, it is possible to prevent the dielectric breakdown of the diaphragm plate caused conventionally by accumulated electric charges and to provide an ink-jet recording head that is substantially free from the damage of a driving circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.