Dual capillarity ink accumulator for ink-jet
US6019459A · kind A · utility
9Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1998 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Sep 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1752
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet writing system having a pen and a detachable ink reservoir. The pen includes a dual capillarity ink accumulator wherein a balance is provided such that the pen nozzles will neither drool ink nor suck up air when the pen is decoupled from the reservoir. A high capillarity member and a low capillarity member of the accumulator respond to changes in volume of a gas bubble within the pen to absorb or expel ink when operational and ambient atmospheric pressure changes occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.