Liquid ejecting head and liquid ejecting apparatus
US8646880B2 · kind B2 · utility
0Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Mar 27, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14362
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A charge accumulated on an insulative nozzle plate flows into the ink with which nozzle openings and pressure generation chambers are filled and reaches a vibration plate. The charge that has reached the vibration plate is driven out therethrough because the vibration plate is made of a conductive ceramic material and is grounded. Therefore, it is possible to obtain an ink jet recording head in which insulation breakdown of the vibration plate caused by the charge accumulated on the vibration plate is suppressed from occurring and a driving circuit is suppressed from being damaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.