Ink jet printhead
US6860587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Feb 4, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14072
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet printhead includes a printhead substrate having a plurality of thin film layers and three side by side columnar arrays of drop generators formed in the printhead substrate and extending along a longitudinal extent. Each columnar array has ink drop generators that are separated by an ink drop generator pitch P. The ink drop generators produce ink drops having an ink drop volume that enables multi-pass printing of a resolution that is not less than 1/(2P) dpi along a print axis parallel to the longitudinal extent. Three columnar arrays of FET drive circuits formed in the printhead substrate are employed to energize corresponding columnar arrays of ink drop generators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.