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HP Recommended
DesignJet T120
macOS 12.0 Monterey

A vertical rainbow bar prints down the middle of every print.

We have tried:

- Cleaning Print Heads

- Aligned Print Heads

- Changing Ink (M, Y, C - haven't tried black)

None of those things worked. After changing the ink there were fewer individual lines but it still occupies the same amount of space. See photos for reference. 3rd photo is after changing the color cartridges. Any suggestions?

 

For reference on direct of rainbow lineFor reference on direct of rainbow lineBefore changing ink cartidgesBefore changing ink cartidgesAfter changing inkAfter changing ink

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