System and method for controlling air bubble formation in solid inkjet printer ink flow paths
US9272525B2 · kind B2 · utility
0Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2013 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Oct 13, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/16564
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Protrusions are positioned on the inner surfaces of a channel within a printhead body or member to control the size and location of bubble formation. An inkjet printhead includes a member having a first opening and a second opening to enable melted ink to enter the channel at the first opening and flow through the channel to the second opening. At least one protrusion extends from the member into the channel to position a portion of the protrusion into melted ink in the channel to form a dominant stress concentration in the melted ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.