Inkjet printer printhead having equalized shelf length
US5608436A · kind A · utility
39Cited by
18References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1994 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Oct 14, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1634
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printhead for an inkjet printer employs an ink fill slot having an extended portion disposed as a depression on the primary surface of the printhead substrate. The barrier layer of the printhead forms the walls of the ink ejection chambers, the walls of and constrictions in the ink fill channels, and the contoured barrier lobes between the ink fill channels. The extended portion of the ink fill slot follows the contour of the barrier lobes such that the length of the substrate shelf between the ink fill channel constriction and the extended portion of the ink fill slot is equalized between ink ejection chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.