Negative pressure ink delivery system
US5757406A · kind A · utility
51Cited by
20References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1992 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Dec 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/17516
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet printhead is mounted on a cartridge which has an outer casing member, an inner collapsible reservoir formed by non-elastic flexible walls, and an internal spring means inside the reservoir for creating negative pressure in the collapsible reservoir during the filling and storage of ink in the collapsible reservoir as well as during the dispensing of ink from the collapsible reservoir to the printhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.