I am trying to downgrade from FW FDP1CN2022AR

[RichardFD]

MY Officejet Pro 8620 Cannot recognize the printhead.  I have cleaned it and tried everything I could do, but it still cannot "see" the printhead.

[Hawks_Eye]

Hi @RichardFD 

Welcome to the HP Support Community! 

Thanks for posting your query! We're here to help you get back up and running.

I am afraid there is no option to downgrade the firmware on your printer.

To fix the printhead recognition issue, try the below suggestion:

Inspect and Reseat the printhead if it has a latch:

Remove the printhead and check for any visible damage or debris.

Clean the electrical contacts on the printhead and inside the printer using a lint-free cloth and isopropyl alcohol.

Open the door or lid to the cartridge access area. Wait until the carriage stops moving before continuing.

Look for a latch on the carriage. This step applies only to printers with carriage latches.

With the printer turned on, disconnect the power cord from the printer.

Lift the carriage latch, slightly lift the printhead, lower the printhead back into the carriage, wiggle the printhead left and right, and then lower the carriage latch until it stops

Close the door or lid to the cartridge access area.

Reconnect the power cord to the printer.

If the error message still displays, repeat the steps to reseat the printhead up to three times.

Reset the Printer:

Turn off the printer, unplug it, and wait for 60 seconds. Plug it back in and turn it on.

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Take care, and have an amazing day!

Regards, 

Hawks_Eye