Appeared a fatal 929 error on my oki c910 printer. what do I do?

SOURCE: Oki C5200n 002: Fatal Error

We have to change firewall settings in our Fios router. I just don't know which ports or udp to open.

SOURCE: OKI C7300 Printer

Unfortunately it's a Hardware problem.
If you bought it from a dealer, contact them.

Error 020
When an error has occurred in the controller board (CU) or the program Rom.




Resolution:
Replace the Rom Dimm, see chart below for the correct part number. If the Rom Dimm does not correct the issue, then replace the (CU) controller board. Please refer to the service manual for (CU) part number depending on the printer revision

SOURCE: fatal error 122 on a oki c5200 printer

YOUR DRIVER CD IS CURREPTED.ANOTHER DRIVER CD USE.

SOURCE: fatal error 980 OKI C5500 printer

I had a paper jam and removed the jammed papers. The paper jam cleared and then the Fatal Error 980 appeared. OKI C5500 printer

SOURCE: My Oki C9600 Printer showed an error message,

940: Error
Waste Toner Transfer Error

The transfer mechanism of the
toner duct for ID is not operating
properly.

Check to confirm that the basket
assembly is in position (if it is
engaged with the gear of the
printer).
Check to confirm that the holder
magnet D contains a magnet,
and check the magnetic polarity.
Replace the HAL IC circuit
board.
Replace the duct assembly
toner.