Method for manufacturing an ink jet recording head having ink filter
US5808644A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Nov 7, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/21
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing an ink jet recording head which includes a plurality of ejection outlets for ejecting ink; discrete ink passages communicating with respective ejection outlets; a common liquid passage communicating with the discrete ink passages for supplying ink thereto; a liquid chamber for supplying the ink to the common ink passages; and a filter. The filter includes plural projections between the common liquid passage and the liquid chamber, for preventing foreign matter from entering the discrete liquid passages. Adjacent projections define a liquid passing area having a size smaller than that of the ejection outlets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.