Printer
US5798781A · kind A · utility
4Cited by
4References
4Claims
0Family size
Inventors
Key dates
| Filing date | May 2, 1995 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | May 2, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17559
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A continuous ink refill system for ink-jet printers, of the kind employing a disposable ink cartridge, wherein an aqueous suspension of a pigmented ink is continually circulated through the cartridge by means of a pressure pump, with unused ink being returned from the cartridge to an ink reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.