I need help with my HP 8600 pro plus..it printed colors that all mixed up. Yellow didn't print...all I got from yellow is green and orange. At first it all printed in black only. Hp could not help so they sent in a replacement printhead. It's didn't help, so they told me that the hardware is damage, so they replace the whole printer but the problem still there. After several cleaning and new color cartriges.. it finally printed but the yellow is all mixed up and I cannot print color from my computer. It only printed using the printer itself. When I printed from my computer it only print in black.
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