My magenta prints very dark, almost black. I have tried cleaning the printheads (not manually) and changing cartridges with no success. It seems like a new printhead might fix it, but I'm not sure. Any suggestions?
If the issue persists, please try the below steps:
Solution one: Use genuine HP cartridges
HP recommends that you use genuine HP ink or toner supplies. HP cannot guarantee the quality or reliability of non-HP or refilled cartridges. If you do not use genuine HP cartridges, the steps in this document might not resolve the issue. To check the authenticity of your cartridges, go to hp.com/go/anticounterfeit.
Solution two: Allow automatic servicing to complete
Many print quality problems with black ink, such as poor black text or issues that occur with a newly installed black cartridge, clear up with the printer's automatic servicing routine. There is nothing you need to do. The print quality should start improving in a few hours.
Solution three: Check the paper
Follow these guidelines to make sure that the paper you are using is appropriate for the print job. If it is not, reload the printer with an appropriate paper type.