Patent · US Expired

Printhead module having nozzle redundancy for faulty nozzle tolerance

US7866778B2 · kind B2 · utility

20Cited by

13References

10Claims

0Family size

Assignee

Silverbrook Research Pty Ltd · AU

Inventors

Kia Silverbrook · Sydney, AU
Simon Robert Walmsley · Sydney, AU
Richard Thomas Plunkett · Sydney, AU
Mark Jackson Pulver · Sydney, AU
John Robert Sheahan · Sydney, AU
Michael John Webb · Sydney, AU

Key dates

Filing date	May 27, 2004
Grant date	Jan 11, 2011
Priority date	—
Expiry date	Mar 28, 2025

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/2139
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A printhead module comprising a plurality of rows, each of the rows comprising a plurality of nozzles for ejecting ink, wherein the printhead module includes at least first and second rows configured to print ink of a similar type or color, and being configured such that, in the event a nozzle in the first row is faulty, a corresponding nozzle in the second row prints an ink dot at a position on print media at or adjacent a position where the faulty nozzle would otherwise have printed it.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.