pinhead issue with my problem after installing new ink

[dysert]

"pinhead  problem" warning comes after  installing new 902XL Black ink cartridge. Now my printer won't work

[Alden4]

Hi @dysert,

Welcome to HP Support Community.

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

It sounds like you're encountering a "pinhead problem" warning after installing a new 902XL Black ink cartridge in your HP Officejet Pro 6978 printer, and now the printer isn't working. This issue could be due to several factors.

• Improper Installation: Ensure that the cartridge is properly installed. Sometimes, even a small misalignment can trigger error messages.
• Compatibility Issue: Confirm that the 902XL cartridge is compatible with your printer model. Using an incompatible cartridge can cause errors.
• Faulty Cartridge: The cartridge itself might be defective. Try reinstalling the old cartridge to see if the error persists. If not, it's likely an issue with the new cartridge.
• Printer Firmware: Check if there are any firmware updates available for your printer. Sometimes, updating the firmware can resolve compatibility issues with newer cartridges.
• Cleaning Contacts: Clean the cartridge contacts and corresponding contacts inside the printer with a lint-free cloth lightly moistened with distilled water. Sometimes, dirt or debris on the contacts can cause communication errors.
• Reset Printer: Try resetting your printer to its default settings. This can sometimes resolve minor issues with the printer's software.

By following these steps, you should be able to troubleshoot and resolve the "pinhead problem" warning on your HP OfficeJet Pro 6978 printer.

I hope this helps.

Take care and have a good day.

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Alden4

HP Support