Ink feed slot formation in ink-jet printheads
US6238269A · kind A · utility
12Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2000 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Jan 26, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1635
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A technique for controlling the abrasive jet machining process to drill an ink feed slot through an ink jet printhead substrate. The approach results in a relatively even slot edge adjacent to channels that supply the ink-droplet firing chambers of the printhead. The evenness of the edge reduces the tolerances required for designing the channels and other printhead components, thus permitting the construction of printheads with increased droplet ejection frequency. The printhead size is correspondingly reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.