Ink jet printhead having a channel plate with integral filter
US6779877B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Jul 15, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14403
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printhead for use in an ink jet printing device includes a heater substrate having a plurality of heating elements and an intermediate layer disposed adjacent the heater substrate. The intermediate layer defines a plurality of ink flow paths. A channel plate is disposed adjacent the intermediate layer and includes an integral filter having a plurality of filter teeth extending toward the intermediate layer. The channel plate defines an ink reservoir on one side of the integral filter and a cross-flow channel on a second side of the integral filter. Preferably, the channel plate, including the integral filter, comprises a single piece of plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.