Ink-jet off axis ink delivery system
US5886718A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1995 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Sep 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An off-axis ink delivery system for an ink-jet hard copy apparatus includes a multifunctional ink pump and flow switch device. A semipermanent, negative pressure, pen and printhead has a fluidic coupling to a static, refillable or replaceable, off-axis, ink reservoir via the ink pump and flow switch device.. The pen's mechanism for creating the negative pressure operational condition is used to pull ink from the reservoir when the ink pump and flow switch device is in an "open" position. Negative pressure reset, nozzle priming, pen air purging functions are also provided by the same ink pump and flow switch device. A system for each color ink is employed in the hard copy apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.