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CISS Dye ink refill kit for HP 121XL BK Color Deskjet C4680 C4683 C4685 C4688 C4740 C4780 C4783 C4788 C4795 C4798 inkjet printer - AliExpress
SOLVED: How do I fix blurry printing, already tried all the basic diagnostics? - hp Officejet Pro 8600 Plus - iFixit
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