Obtaining high frequency performance by controlling chamber pressure
US6932458B2 · kind B2 · utility
2Cited by
0References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2002 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Nov 25, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14419
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus to prevent ink starvation includes keeping ink in a primary common reservoir at a high pressure. The ink is transferred from the primary common reservoir to a local reservoir when a pressure drop across a restrictor decreases pressure in the local reservoir. The pressure drop across a restrictor results from a higher ink flow rate due to rapid firing of the transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.