Liquid ejecting head, substrate for liquid ejecting head, and printing apparatus
US9114612B2 · kind B2 · utility
3Cited by
21References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2014 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Jul 24, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14129
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A print head includes upper protective members located at positions corresponding to heat generating resistor elements to protect the heat generating resistor elements, and further, a part of the protective member can be eluted into ink when a current flows inside in a state in which the ink is stored in the pressure chambers. The print head includes a drive element and a logic circuit capable of allowing a current to independently flow in each of the upper protective layers so as to elute a part of the upper protective layer, in which the current flows, into the ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.