HP Officejet Pro 6978 - printhead error 0x0

[PS1000]

I've tried cleaning the printhead through the control panel options, no luck. I've removed the cartridges and cleaned them and the contacts on the carriage. I don't have a latch on the cartridge carriage to remove the carriage and clean it. What else can I do to fix this printhead problem?

[Kuroi_Kenshi]

Hi @PS1000,

Welcome to the HP Support Community! 

Thanks for reaching out about your query regarding !

We're thrilled to have the opportunity to assist you and provide a solution.

Try these steps:

Reset the Printer

1. Turn off the printer: Press the power button to turn off the printer.
2. Disconnect the power cord: Unplug the power cord from the printer and the wall outlet.
3. Wait for 60 seconds: Let the printer sit without power for about one minute.
4. Reconnect the power cord: Plug the power cord back into the wall outlet and the printer.
5. Turn on the printer: Press the power button to turn on the printer.

Reinsert Cartridges

1. Open the cartridge access door: Allow the carriage to move to the center and stop.
2. Remove cartridges: Press each cartridge to release and remove it from the slot.
3. Inspect cartridges: Check for damages and ensure no protection remains on the ink nozzles.
4. Reinstall cartridges: Insert each cartridge back into its slot until it clicks into place.
5. Close the access door: Ensure the door is securely closed.

Clean the Printer Contacts

1. Prepare cleaning materials: Use a dry, soft, lint-free cloth to clean the contacts.
2. Disconnect power: Ensure the printer is turned off and unplugged.
3. Open the cartridge access door: Access the carriage.
4. Clean the contacts on cartridges and inside the printer: Gently wipe the copper-colored contacts.
5. Reinsert cartridges: Place the cartridges back into their slots.
6. Reconnect the power: Plug the power cord back in and turn on the printer.

Perform Automatic Printhead Cleaning

• If manual cleaning and reinsertion do not resolve the printhead error, you can perform an automated cleaning from the control panel:
  1. Load plain white paper into the input tray.
  2. On the printer control panel, touch the Right Arrow, and then touch Setup.
  3. Touch Tools, and then touch Clean Printhead.

I hope this helps.

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