Printhead IC with de-activatable temperature sensor

US7425048B2 · 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
• Kia Silverbrook · Sydney, AU

Key dates

• Filing date: Oct 10, 2006
• Grant date: Sep 16, 2008
• Expiry date: Dec 13, 2026

Classification

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

Abstract

A printhead IC comprising: an array of nozzles; drive circuitry for receiving print data and sending drive pulses of electrical energy to the array of nozzles in accordance with the print data; and, a temperature sensor connected to the drive circuitry to adjust the drive pulse profile in response to the temperature sensor output; wherein during use, the temperature sensor can be de-activated after a period of use.