Method of expelling ink from nozzles in groups, alternately, starting at outside nozzles of each group

US7427117B2 · kind B2 · utility

Assignee

• Silverbrook Research Pty Ltd · AU

Inventors

• Mark Jackson Pulver · Sydney, AU
• Simon Robert Walmsley · Sydney, AU
• John Robert Sheahan · 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: Sep 23, 2008
• Expiry date: Apr 10, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41J2/04585
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A method of expelling ink from a printhead module including at least one row that comprises a plurality of adjacent sets of n adjacent nozzles, each of the nozzles being configured to expel ink in response to a fire signal, the method comprising providing, for each set of nozzles, a fire signal in accordance with the sequence: [nozzle position 1, nozzle position n, nozzle position 2, nozzle position (n−1), . . . , nozzle position x], wherein nozzle position x is at or adjacent the centre of the set of nozzles.