30 PS Error 22 or 25
An unexpected PostScript firmware error has occurred.
– Replace the PostScript SIMM.
30 PS Error XX (all others)
A PCL file is being sent to the printer while it is in PostScript mode,
or a PostScript file or application error has occurred.
– Check the configuration, application, and print files.
30.1.1 Disk Failure
The optional disk failed a self-test.
40 Error (data transfer error)
The computer and printer may be set to different baud rates.
– Refer to the service manual to reset the baud rates.
The computer is turned off.
– Turn the computer on.
The MIO card is unseated or defective.
– Remove, reseat, or replace the MIO card.
An abnormal connection break occurred while transferring data from
38 – Control panel messages
on the printer to clear the error