Ink reservoir, ink jet head structure including ink reservoir, and ink jet recording apparatus including ink reservoir
US6966641B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2003 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Apr 13, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17556
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a sub-tank of an ink jet recording head, an ink absorbing member capable of being impregnated with and holding an ink is arranged and a space V2, which is an area formed by a first wall surface of an ink reservoir and the ink absorbing member and in which the ink absorbing member is not present, is formed. A gas-liquid separation member made of a porous member, transmitting a gas but shutting off a liquid such as the ink is provided in a cap member in which an air hole is formed. A volume of the space V2 and a total volume V2 of an amount of the ink by which the ink is discharged from a discharge port of an ink jet recording element in one recovery operation and an initial pre-discharge amount hold a relationship of 0.7V1≦V2≦V1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.