Inkjet printer having controller for correcting displaced inkjet nozzles

US7467836B2 · kind B2 · utility

Assignee

• Silverbrook Research Pty Ltd · AU

Inventors

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

Key dates

• Filing date: Jul 29, 2007
• Grant date: Dec 23, 2008
• Expiry date: Jul 29, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41J2/2135
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A pagewidth inkjet printer is provided having a pagewidth printhead which has a plurality of printhead modules mounted end to end on a carrier to extend across a pagewidth with each printhead module incorporating a plurality of inkjet nozzles and the nozzles of at least one of the printhead modules being rotationally displaced relative to the carrier, and a printer controller for communicating ink dot data to the inkjet nozzles in accordance with a cumulative correction factor for each printhead module. The printer controller measures the amount of rotational displacement of the rotationally displaced printhead module to determine the cumulative correction factor to at least partially compensate for the rotational displacement.