HP OfficeJet Pro 8020 error code 71.02.4A

[Haynes2021]

HP OfficeJet Pro 8020 error code 71.02.4A, was a solution found for this problem. Bought this in 7/2020, with minimal usage.

[Mans]

@Haynes2021 

Hello,

In some cases, remove the ink cartridges and reset the printer can solve the error.

1. Turn on the printer.
2. Before continuing, wait until the printer is idle and silent.
3. Disconnect the USB cable from the back of the printer. If your printer has a network or wireless connection, leave it connected.

4. Open the cartridge access door or lid.

5. Remove the ink cartridges of the printer.
6. With the printer turned on, unplug the power cord from the back of the printer and from the wall outlet.
7. Wait at least 60 seconds.
8. Plug the power cord into the outlet.

   NOTE: HP then recommends reconnecting the printer's power cord directly into a wall outlet.

9. Reconnect the power cord to the back of the printer.
10. Turn on the printer, if it does not automatically make it.
    It is possible that the printer goes through a warm-up cycle. It is also possible that the printer lights blink and the carriage moves.
11. Wait until the preheat cycle and until the printer is idle and silent before continuing.
12. Reinsert the ink cartridges in the printer, then close the cartridge access door or lid.
13. Follow the steps to align the printer, if prompted.
14. If you disconnected the USB cable, reconnect it to the back of the product.
15. Try to print.

Please update the printer's firmware: Update the firmware on an HP printer.

Don't hesitate to contact us in case of need.

Best regards,

[Haynes2021]

The cartridge housing is not moving for me to do this.

[Mans]

@Haynes2021 

Thanks for your return,

Try the following:

1. Disconnect the USB cable from the back of the printer. If your printer has a network or wireless connection, leave it connected.
2. Without turning off the product, disconnect the power cord from the back of the product.

     CAUTION: You must disconnect the power cord to move parts by hand without the risk of an electrical shock.

3. Disconnect the power cord from the wall outlet.
4. Look inside the product to see where the carriage is stuck, and then check for any torn paper or other objects that might be restricting the carriage.

   NOTE: You might need a flashlight to illuminate areas for proper viewing.

5. Reach inside the product through the cartridge door, and then manually move the carriage.
   • If the carriage is stuck on the right side of the product, move the carriage to the left side of the product.
   • If the carriage is stuck on the left side of the product, move the carriage to the right side of the product.
   • If the carriage is stuck in the middle of the product, move the carriage to the right side of the product.
6. Remove any loose paper or obstructions found.
7. Wait at least 60 seconds.
8. Plug the power cord into the outlet.

9. Plug the power cord into the outlet.

   NOTE: HP then recommends reconnecting the printer's power cord directly into a wall outlet.

10. Reconnect the power cord to the back of the printer.

11. Turn on the printer, if it does not automatically make it.
    It is possible that the printer goes through a warm-up cycle. It is also possible that the printer lights blink and the carriage moves.

12. Wait until the preheat cycle and until the printer is idle and silent before continuing.

13. Follow the steps to align the printer, if prompted.

14. If you disconnected the USB cable, reconnect it to the back of the product.

15. Try to print.

16. Then follow the steps in my previous message.

Don't hesitate to contact us in case of need.

Best regards,