Recording head structure provided with ink reservoir section
US6840611B2 · kind B2 · utility
4Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2003 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Nov 10, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17556
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A covering member is installed on the upper face of a liquid storing chamber, which further covers a communicating for covering a gas-liquid separation member. For the ink jet cartridge, given the length of each of paths from the gas-liquid separation member to the atmosphere communication port as Ln, and the sectional area of each path as Sn, and then, the diffusion resistance R=Σ(Ln/Sn), and the coefficient K=10,000 (mg.mm/mm2), it is arranged to set the Ln and Sn to satisfy the K/V<R<2,000, provided that the total weight of liquid filled in the liquid storing chamber is V.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.