Inkjet system with backpressure capacitor
US8814331B2 · kind B2 · utility
0Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2008 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Sep 15, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/17579
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A vacuum source is coupled to an ink reservoir to establish a backpressure to prevent ink from dripping from a printhead. The vacuum source is also coupled to a backpressure capacitor so that a first liquid-gas interface rises to a first level. When the vacuum source is decoupled, the liquid-gas interface falls to a second level so as to maintain sufficient backpressure on said ink to prevent it from dripping from the inkjet printhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.