Ink jet cartridge for an ink jet printing apparatus
US6151052A · kind A · utility
6Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17559
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The ink-jet cartridge of the present invention includes two magnetic plates attached to the two sides of a flexible ink reservoir and facing each other with their sides of the same magnetic polarity. Alternatively, the two magnetic plates are attached to two flexible bags within the rigid ink reservoir and face each other with their sides of the same magnetic polarity. Due to the repulsive force generated by the two magnetic plates, a pressure regulating effect can be achieved within the ink reservoir to prevent ink leakage and provide smooth ink delivery while printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.