Ink delivery system
US8113612B2 · kind B2 · utility
7Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2009 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Mar 14, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink delivery system includes a plurality of ink supplies, an air pressure source to generate ink pressure for each ink supply, an ink valve associated with each ink supply, where each ink valve is configured to prevent a reverse flow of ink from a pen to the associated ink supply, and each ink valve has a switch configured to provide an open signal when the ink valve is open, and a controller configured to determine one of a normal ink condition, an out of ink condition or a system pressure problem based on receiving the open signals and to regulate the pressure source according to the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.