" 49.FF04 Error Turn off
Critical firmware error. Can be caused by invalid print commands, corrupt data, invalid operations or even electrical noise in the cable.
Turn off the printer, then turn it on.
Press Stop to clear the print job from memory.
Turn off and back on.
Print a document from a different software program.
If that document prints, go back to the first program that failed and print a different file.
If the error comes back, that file is corrupt.
If the message persists with different programs and print jobs have the formatter replaced.
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