Ink tank system for ink jet printer
US6048055A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1998 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Sep 3, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17523
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is provided an ink tank system for supplying ink to a print head of an ink jet printer from a replaceable ink tank by pressurizing inside of the ink tank with pressurized air. By disposing an air filter in an air supply channel of the ink tank, dust is prevented from entering the ink tank together with air, and the ink is prevented from adhering to the air filter, thereby keeping smooth ink force-feeding. At the time the ink tank is mounted, a seal releasing pin protruded on the side of a printer unit opens an auxiliary seal for sealing between the air filter in the air supply channel and an air chamber of the ink tank. After the ink tank is mounted, the pressurized air is passed through the air filter and fed into the ink tank. A replaceable ink tank used in the system is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.