Thermal drop-on-demand ink jet print head
US4847636A · kind A · utility
19Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Dec 15, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14379
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal drop-on-demand ink jet print head in which thermal cross-talk problems are eliminated by providing heat shield members in the space between each of the heater elements. The heat shield members comprise metal fingers attached to either the common heater electrode or one of the control electrodes. The heat shield members enhance flow of heat into the substrate to thereby minimize thermal cross-talk among adjacent channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.