It was happening with an old set of ink cartridges, and I had a set of unopened Instant Ink cartridges waiting to be installed so I switched those in and nothing changed. I've tried running the cleaning service and all that and still no change.
I removed the black cartridge and printed in single cartridge mode and the quality is great. It appears the black cartridge I got from HP Instant Ink is bad. What's the best way to resolve this and get a replacement cartridge?
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