Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 2, 2010
Patent Application Number
12177157
Date Filed
July 22, 2008
Patent Primary Examiner
Patent abstract
A printhead IC is provided which has 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. During use, the temperature sensor can be de-activated after a period of use. The drive circuitry sets the duration of the pulse profile to a sub ejection value for any of the nozzles in the row that are not to eject a drop during that firing sequence.
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