Compact printhead and method of delivering ink to the printhead
US6652068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2002 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Nov 3, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14475
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This present invention provides an ink jet printhead and method of delivering ink to the printhead. The printhead has a substrate, a nozzle layer, and a plurality of bubble generators. A plurality of first chambers and a plurality of second chambers are formed between the nozzle layer and the top of the substrate. A central ink flow channel and a periphery ink flow channel for delivering ink to the chambers are formed in the substrate. The characteristic of the present invention is positioning the central ink flow channel and the periphery ink flow channel together on the substrate so that the amount of the nozzles per unit area of the printhead is increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.