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Ran a printhead test. What does this tell you?

HP Latex 300 Series

#1 pideas1 a year ago

I'm seeing banding in my prints so I ran a printhead test and alignment test. What does this image of the test tell me?

One image is the banding I got while printing. The second image is of the printhead test. The magenta/red is not printing out solid. It's almost like the ink isn't laid down correctly.

printhead testbanding

#2 HP-ColorGuy a year ago

Run the printhead nozzle test print. From the Front Panel:

Settings > Image Quality Maintenance > Clean Printheads > Test Print

After the print completes (and dries the ink), assess the patterns for each printhead and color. There should be no significant gaps in the patterns - an occasional gap is not cause for concern, but large gaps in the pattern are. I am guessing that you have a large number of missing nozzels in the K channels.

If that is the case, run a cleaning on the C/K heads (or other colors that have the same symptom), and then re-print the nozzle test print. If the nozzles cannot be recovered, it may be time to replace the head.

The opinions expressed above are the personal opinions of the authors, not of HP.

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