High durability polymide-containing printhead system and method for making the same
US6179413A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1997 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Oct 31, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/03
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A high-durability printhead for an ink cartridge printing system. The printhead includes a substrate having ink ejectors (e.g. resistors) thereon and an orifice plate positioned above the substrate. The orifice plate has a top surface, bottom surface, and a plurality of openings therethrough. The orifice plate is optimally produced from a non-metallic organic polymeric composition. To improve the durability, heat-stability, and ink resistance of the printhead, an intermediate layer manufactured from a thermoplastic polyimide is employed between the orifice plate and the ink ejector-containing substrate. This particular system generally improves the structural integrity of the printhead and provides longer cartridge life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.