Identical issue to a 2018 post that I can't respond nor add to. I've tried everything to repair. Pages, labels, etc. will partially print. An address will have a missing or faded middle line. Excel spreadsheets and Word documents will have faded or missing lines. No consistency regarding where missing or faded line is. Using real HP cartridges. I've performed every repair step. What next besides tossing the printer?
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