Print control based on print head temperature

Details Print control based on print head temperature Print control based on print head temperature

2006-04-11

2006-04-11

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S017000

Reexamination Certificate

active

07025432

ABSTRACT:
A method and apparatus for cooling a print head of an ink jet printer before capping includes the steps of determining an ambient temperature, determining a print head temperature, and waiting a predetermined time after receipt of the last print data for the print job, ejecting a predetermined number of ink droplets from nozzles of the print head at a frequency lower than a frequency used for printing, determining a drop in print head temperature caused by ejecting the predetermined number of ink droplets, and repeating the steps of waiting a predetermined time and ejecting a predetermined number of ink droplets until the print head temperature falls below a threshold.

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patent: 6024430 (2000-02-01), Koitabashi et al.

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