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HP Smart Tank 515 Wireless All-in-One

Hello. I recently bought this HP Smart Tank 515 printer and everything was fine till now. If print or copy a black only file, my print has horizontal lines as shown below. However if I choose to print colored, everything is fine. My black ink level is not low, It's about 80% full. I tried many things to fix this (cleaned printer heads, did diognosis stuff, checked all the parts etc.) but nope. Any idea what else I can do? Print quality report also has these lines. I refilled the inks from the same brand but only black ink has this problem.

 

3b1f9f4c-acaf-4f84-a1bd-f7dbd7bcbb2f.jpg

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