Ink jet printhead assembly with non-emitting orifices
US5940096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1996 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Jun 3, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14475
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention is directed to an ink jet printhead assembly for jetting a supply of ink onto a print medium. A printhead includes a substrate and a plurality of heater elements mounted on the substrate. A nozzle plate is attached to the printhead. The nozzle plate and/or substrate includes an ink feed channel and a plurality of ink chambers. The nozzle plate includes a plurality of ink emitting orifices and a plurality of non-emitting orifices. Each ink emitting orifice is associated with a respective one of the ink chambers and is positioned adjacent to a respective one of the heater elements. Each ink chamber is in fluid communication with the ink feed channel at a first fluid port and in fluid communication with a respective one of the non-emitting orifices at a second fluid port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.