Printhead IC with staggered nozzle firing pulses

US8016389B2 · kind B2 · utility

Assignee

• Silverbrook Research Pty Ltd · AU

Inventors

• John Robert Sheahan · Sydney, AU
• Mark Jackson Pulver · Sydney, AU
• Brian Christopher Morahan · Sydney, AU
• Alireza Moini · Sydney, AU
• Timothy Peter Gillespie · Sydney, AU
• Michael John Webb · Sydney, AU
• Brian Robert Brown · Chatswood, AU
• Kia Silverbrook · Sydney, AU

Key dates

• Filing date: Oct 10, 2006
• Grant date: Sep 13, 2011
• Expiry date: Nov 23, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41J2202/20
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

An inkjet printer comprising: an array of nozzles arranged into rows, each row of nozzles is divided into a series of groups; and, drive circuitry for sending a drive pulse to each of the nozzles individually such that they eject a drop of printing fluid; wherein, the drive circuitry delays sending the drive pulses to one of the groups relative to at least one of the other groups.