printer display says problem with printer head, we followed instructions to remove, clean, reinstall

[Keowee21]

HP Officejet Pro8600  model #N911A

[VikramTheGreat]

Hi @Keowee21,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

Thanks for sharing the details. The error message on your HP OfficeJet Pro 8600 (Model N911A), indicating a problem with the printhead even after cleaning and reinstalling, suggests that the printhead may be damaged or electrically faulty.

1. Power Reset

• Turn off the printer.
• Unplug the power cord from the printer and the wall outlet.
• Wait 60 seconds, then plug it back in and turn it on.

2. Remove and Reinstall the Printhead Properly

Follow HP’s official guide: 👉 HP OfficeJet Pro 8600 Printers - Replace the printhead | HP® Support

Steps include:

• Open the cartridge access door.
• Wait for the carriage to stop moving.
• Lift the latch handle and gently remove the printhead.
• Clean the electrical contacts with a lint-free cloth (avoid touching nozzles).
• Reinsert the printhead and close the latch.
• Install SETUP cartridges if you received a replacement printhead kit.

I hope this helps.

Take care, and have an amazing day!
 

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Regards,

VikramTheGreat