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Message: [QUOTE="Daveveej, post: 233634, member: 29620"] Hi there, I've bagged myself a 2nd copy of the IP8750, I have one that's working and fully functional but the other is being weird. I've ran manual and software cleaning and checked but the print head is not working as I'd hoped. I've got two print heads that I've tested, three in total, not the one from the working printer as I don't wanna ruin that one. One of the spare print heads is printing with these awful lines/patterns (see photo attached), and the other is missing out true black outright (the top black on the print out picture attached). I've already had them cleaned by the software, and tried to warm water for 8 hours trick to flush them clean, but no dice. Is there anything more I can do or am I best buying another print head? Thanks for the advice. [/QUOTE]