Liquid ejecting head and method in which a movable member is provided between flow paths, one path joining a common chamber and ejection orifice, the other, having a heat generating element
US6331050A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1996 |
| Grant date | Dec 18, 2001 |
| Priority date | — |
| Expiry date | Apr 15, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/21
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid ejecting head ejects liquid by generating a bubble. The head includes a first liquid flow path for direct fluid communication between a first common liquid chamber and an ejection outlet, a second liquid flow path having a heat generating element for applying heat to the liquid to generate a bubble in the liquid, and a supply path for supplying the liquid to above the heat generating element from an upstream side of the heat generating element in a direction along the heat generating element. A movable member is disposed between the first and second flow paths, faces the heat generating element, and is displaced to a side of the first liquid flow path because of pressure generated when the heat generating element is driven, and has a fulcrum and a free end located downstream of the fulcrum. A guide path is provided in which the liquid flows above the heat generating element in the second liquid flow path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.