Replaceable ink jet print head cartridge assembly with reduced internal pressure for shipping
US6692116B2 · kind B2 · utility
5Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Jul 2, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17546
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Inkjet cartridge assemblies are provided for shipping with the internal pressure of their ink containers set during assembly at a reduced level at least 2 inches Hg gage below atmospheric pressure at sea level to avoid leaking during shipping. Preferably, the ink containers have an internal pressure set at least 9 inches Hg gage below atmospheric pressure at sea level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.