L7780 poor print quality after not using for 6 months

Poor print quality after not using my printer for about 6 months. Ran thru the tools (clean printhead, aligh, etc . . .) didn't help. Replaced all chartridges, still no help.
I'm fairly tech savy, been in IT for 27 years starting with hardware support.
Question, can I manually clean the printheads or should I just replace. I would rather try to clean them manually after just shelling out > $ 170 on new chartridges.
thanks
Brent

Hi @Brentl
Yes, you can clean the printhead and the inside of the printer. The following document will help; 'The Following Printheads are Missing or Damaged, Replace the Printhead' Message Displays on the All....
I hope this helps.
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Sunshyn2005 - I work on behalf of HP

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L7780 poor print quality after not using for 6 months

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