Method and apparatus for storing and supplying ink to a thermal ink-jet printer
US5786834A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1994 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Jan 3, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method an apparatus for storing and supplying liquid ink to a thermal ink-jet printer includes a printhead that has ink ejection nozzles and an ink supply housing connected to the printhead. The ink supply housing defines an ink storage chamber, and an ink flow path communicating with the printhead and ink storage chamber. An ink storage medium and a scavenger member are placed in the ink storage chamber for retaining, and controllably supplying a quantity of liquid ink from the chamber within a desirable back pressure range at the printhead. The ink storage medium is a medium density non-reticulation process produced copolymer polyurethane foam consisting essentially of a blend of polyether and polyester materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.