Inkjet printer having dual valve arrangement
US8845083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2013 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Oct 4, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17553
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet printer includes: an inkjet printhead having a first port and a second port; an ink container having an outlet port and a return port; a first ink line interconnecting the first port with the outlet port; a second ink line interconnecting the second port with the return port; an air line connected to the first ink line, the air line having an inlet open to atmosphere; a reversible pump positioned between the second port and the return port for pumping ink in the second ink line; and a dual valve arrangement including: a first valve for selectively controlling ink flow through the first ink line, the first valve being positioned in the first ink line between the ink container and the air line; and a second valve for selectively controlling air flow through the air line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.