In the last week the colour calibration on my printer seems to have been lost. I have stepped through all the usual troubleshooting steps (check firmware is up to date, run diagnostics, clean printheads etc) and still have the same results.
When printing the diagnostic page and the status page, the black and cyan colours look about right, but the magenta seems a bit too dark (almost a purple shade) and the yellow seems greenish. Both are genuine HP 951XL Z40 cartridges.
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