Data bandwidth reduction to printhead with redundant nozzles
US6471320B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2001 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Mar 9, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/04586
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printhead includes a first nozzle column register and logic units configured to receive first serial nozzle data and to provide first nozzle firing control signals for controlling the firing of ink drops from a first column of nozzles. Second nozzle column register and logic units are configured to receive the first serial nozzle data and to provide second nozzle firing control signals for controlling the firing of ink drops from a second column of nozzles. First column redundancy logic is configured to disable selected nozzles of the first column of nozzles from firing. Second column redundancy logic is configured to disable selected nozzles of the second column of nozzles from firing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.