False carriage jam

[RJS64]

How can I get rid of a false “Carriage Jam” error on the HP OfficeJet Pro 6978?  

I’ve tried all of the troubleshooting tips, but yet it persists (even after a partial reset).

[Garp_senchau]

@RJS64, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

If you encounter a false "Carriage Jam" error on your HP OfficeJet Pro 6978, follow these steps to resolve the issue:

Restart the Printer

• Power off your printer using the power button.
• Unplug the power cord from both the printer and the power outlet.
• Wait for about 60 seconds.
• Reconnect the power cord, then turn on the printer.

Check the Carriage Path

• Open the ink cartridge access door to expose the carriage.
• Check for any obstructions that might be blocking the carriage path like small pieces of paper or foreign objects.
• Gently move the carriage to the right and left to ensure it can travel freely without hindrance.

Clean Paper Feed Rollers

• Remove the input and output trays.
• Inspect and clean the paper feed rollers using a lint-free cloth lightly moistened with distilled water.
• Remove any debris or dust particles that could interfere with the roller’s performance.

Update Printer Firmware

• Ensure your printer firmware is up to date by visiting HP's support website or by using the included software from your installation CD.
• Updating the firmware might fix bugs that contribute to false error messages.

Also, you may refer to this guide for further troubleshooting steps: HP Printers - Carriage jam or E3 error | HP® Support

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

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