Closed ink delivery system with print head ink pressure control and method of same
US6485137B2 · kind B2 · utility
25Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2001 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Oct 22, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In some embodiments of the present invention, an ink supply system is provided. The system may include a first stationary fluid storage unit, a second stationary fluid storage unit coupled to the first stationary fluid storage unit and an air lung. The system may also include a collapsible fluid level bag positionable lower than nozzles of one or more print heads and a movable fluid pressure damper coupled to the fluid level bag and to the print heads. The system is configured such that when printing, ink is exposed to the ambient atmosphere only at the nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.