I have changed the ink cartridge. Run all the diagnostic options. They're all fine. I was printing out Christmas cards pictures on 8.5x11 photo paper and the quality slowly got worse and worse. Printing pictures in the bottom tray 4x6 are fine. Printing the pictures on regular paper are fine. Trying to print on the same paper that the earlier copies were fine, are terrible. Color is off and there's horizontal lines all over.
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