Ink jet printing head and printing apparatus using same
US6241350A · kind A · utility
142Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | May 5, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14379
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet print head includes ink ejection outlets for ejecting ink, passages communicating with the ejection outlets; a common chamber for supplying the ink to the passages; ejection energy generating elements for producing energy for ejecting the ink; an ink supply passage for supplying the ink to the common chamber; a buffering chamber disposed at a position through which a pressure wave resulting from driving of the ejection energy generating elements propagate, the buffering chamber containing a gas for attenuating the pressure wave, wherein a part of a wall constituting the buffering chamber has a gas transmitting property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.