Low-cost ink delivery system for controlling ink pressure
US11433685B2 · kind B2 · utility
1Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2021 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Feb 19, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink delivery system for delivering ink to an inkjet printhead. The system includes a first ink tank, a second ink tank, a main air line having an air inlet and an air outlet; a first air line interconnecting the first ink tank and the main air line; a second air line interconnecting the second ink tank and the main air line; an air pump positioned in the main air line; first and second airflow restrictor positioned in the main air line; an ink circulation line interconnecting the first and second ink tanks; and an ink pump positioned in the ink circulation line for pumping ink from the first ink tank to the second ink tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.