My HP OfficeJet Pro 8025 displays event code 71.02.4a at startup

[Kdot2931]

My HP OfficeJet Pro 8025 displays event code 71.02.4a at startup.  Unplugging power cord then restarting does not clear the error.  When I open the printer the print cartridges do not move to an accessible position, so I cannot remove or replace/reseat them.

[Anand_Andy]

Hi @Kdot2931,

Welcome to the HP Support Community

I understand you are getting an error message event code 71.02.4a on your HP OfficeJet Pro 8025. Not to worry I will help you to get a resolution to resolve the issue.

Let's perform a power drain: 

• With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.
• Remove USB cable, if present.
• Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.
• Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord (This is important) and then plug back the power cord to the printer.
• Turn on the printer and wait till warm-up period finishes and the printer is idle

Update the printer firmware 

• Click here to download and install the latest printer firmware from your product
• Click here to know different methods of updating printer firmware.

If the issue persists, then please follow the below steps:

• Reset the printer
• Reset the printer to recover from printer errors or failures.
• If your printer has a rechargeable battery, remove it.
• With the printer turned on, disconnect the power cord from the printer.
• Unplug the power cord from the power source.
• Wait 60 seconds.
• Reconnect the power cord to a wall outlet and to the printer.
• NOTE: HP recommends plugging the printer directly into a wall outlet.
• Turn on the printer to complete the reset.
• Clean the ink cartridge and printhead electrical contacts
• Remove any debris or buildup from the contacts on the cartridges and in the carriage.
• Open the door or lid to the cartridge access area. Wait until the carriage stops moving before continuing.
• Remove the cartridge indicated in the error message from the carriage.
• Wipe the copper-colored contact on the cartridge with a lint-free cloth.
• 
• Place the cartridge to the side with the contact facing upwards.
• Wipe the contact inside the printhead with a lint-free cloth.
• 
• Reinsert the cartridge into its color-coded slot, and then press down on it until it snaps into place.
• Repeat these steps for any other cartridges indicated in the error message.
• Close the door or lid to the cartridge access area.
• Here is the HP document for further assistance:- Click here

Hope this helps! Keep me posted. 

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