Ink pump with fluid and particulate return flow path
US8465133B2 · kind B2 · utility
3Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2010 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Sep 15, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17596
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A bidirectional sealless ink pumping system used in an inkjet printing device includes a liquid ink reservoir and a pump. The pump moves ink from the reservoir through a pumping chamber to supply ink to printheads in the printer, and moves ink from a recirculation receptacle through the pumping chamber to the reservoir. A portion of the ink in the pumping chamber is drawn out of the pumping chamber to lubricate the moving member and is filtered before returning to the pumping chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.