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- HP Community
- Printers
- DesignJet, Large Format Printers and Digital Press
- T120 Printing rainbow RGB band vertically on every print.

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02-02-2024 10:11 AM
Product: DesignJet T120
Operating System: 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 line
Before changing ink cartidges
After changing ink
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