Maximum liquid level in dual chamber ink-jet cartridge to control head pressure effect on ink containing porous member in an ink-jet printer
US6659599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2002 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Jun 4, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17556
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink tank cartridge has a housing with a bottom wall and first and a divider that separates a housing cavity into second chambers. An ink supply port with an opening extends through and projects from the bottom wall. A porous member is accommodated in one of the chambers and abuts the opening in the ink supply port. The other chamber is partially filled with ink to a pre-determined level. The predetermined level is approximately 2 millimeters above the opening in the bottom wall in a preferred arrangement. The predetermined level is used to prevent excessive flow of ink through the opening in the bottom wall. A groove is formed in the bottom wall to direct and transfer ink from the porous member to the ink supply port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.