Patent · US Expired

Method for at least partially compensating for errors in ink dot placement due to erroneous rotational displacement

US7374266B2 · kind B2 · utility

18Cited by

7References

21Claims

0Family size

Assignee

Silverbrook Research Pty Ltd · AU

Inventors

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

Key dates

Filing date	May 27, 2004
Grant date	May 20, 2008
Priority date	—
Expiry date	Sep 5, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG06K2215/0085
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method of at least partially compensating for errors in ink dot placement by at least one of a plurality of nozzles due to erroneous rotational displacement of a printhead module relative to a carrier, the nozzles being disposed on the printhead module, the method comprising the steps of determining the rotational displacement; determining at least one correction factor that at least partially compensates for the ink dot displacement; and using the correction factor to alter the output of the ink dots to at least partially compensate for the rotational displacement.

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