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- DJ800 Firmware Upgrade issue

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11-30-2023 02:36 PM
Inherited a functioning HP DJ800 - prints self test page great!
But .. Prints garbage from PC (via USB).
Win XP Professional Computer sees HP DJ800 fine (via USB)
Tried to update Firmware from A.02.05 to A.04.02.
Get the image of the printer and the moving 1's and 0's on the LCD, but it terminates with:
“System upgrade
File Received
Incorrectly
Firmware Not Updated
Restart Printer”
.. and no error code.
So clearly, I have a coms issue between the computer and the HPDJ800.
Any suggestions?
"
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