Method and apparatus for assessing nozzle health

Details Method and apparatus for assessing nozzle health Method and apparatus for assessing nozzle health

2007-10-30

2007-10-30

Nguyen, Lamson (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

10892712

ABSTRACT:
A technique for assessing nozzle health of a printhead nozzle array in a printing system includes printing a swath portion of an image, optically scanning the printed swath portion to capture a scanned image, comparing an expected image of the swath portion of the image with the scanned image, and assessing whether any nozzles of the nozzle array have malfunctioned. A sensor can be mounted on a printhead carriage to accomplish the image capture.

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