Droplet deposition apparatus for ink jet printhead
US6572221B1 · kind B1 · utility
14Cited by
12References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1999 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jan 27, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A piezoelectric printhead or other droplet deposition apparatus has parallel liquid containing channels defined by a base and displaceable walls, and covered by a cover number. The channels each have at least one nozzle for ejecting droplets. Each nozzle may be disposed in the base, the cover then having two ink supply parts spaced lengthwise of each channel on opposite sides of the nozzle. Alternatively two longitudinally spaced nozzles may be provided in the base of each channel. The cover may have a conductive track corrected to wall-displacing electrodes, the points of connection being outside the channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.