Ink jet printhead and its manufacturing process
US7802872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2004 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Dec 15, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1643
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Ink jet printhead comprising one or more ejection module, each with a silicon chip, a plurality of ejector nozzles arranged adjacent to a front of the module, ejection cells for the nozzles and delivery channels for the ink of the cells. The module or modules each include a distribution channel adjacent to the front and in fluid communication with the delivery channels and a nozzle layer integrated with the relative chip and in which the ejector nozzles parallel to the front are made. The head also comprises a support on which the module or modules are mounted and which defines a feeding duct for the ink in fluid communication with the delivery channels and sealing means between the module or modules and the support to guarantee fluid tightness between the feeding duct and the ejection cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.