652 HW ERROR / CALL SERVICE Meaning: The printer has detected an error the memory installed in
the printer. Action: Reseat the DIMM. If the problem recurs, replace the DIMM. 653 HW ERROR / POWER OFF/ON Meaning: The printer has detected an error with the file system on
the Resource Flash Memory Module. Action: Reseat the Resource Flash Memory Module. If the problem
recurs, replace the Resource Flash Memory Module 654 HW ERROR / POWER OFF/ON Meaning: The printer has detected an error with the Controller. Action: Call for service. 661 CODE ERROR / PRESS ENTER nnn Meaning: A code failure occurred. The printer saved traces and
rebooted itself. Action: None required. If the error recurs, call for service. 671 DISK ERROR / CALL FOR SERVICE Meaning: The printer has detected a problem with the hard drive. Action: Switch the printer off, wait 20 seconds, then switch on the
printer power. If the error recurs, call for service. 699 HW ERROR / POWER OFF/ON Meaning: An unexpected and unusual error occurred. Action: Power off and then power on the printer. If this does not
correct the problem, call for service. 714 DUPLEX ERROR / RESEAT DUPLEX Meaning: The printer has detected a problem with the duplex unit. Action: Power off the printer, reseat the duplex unit, then power on
the printer. 772 ENV ERROR / RESEAT ENV TRAY Meaning: There is an error with the envelope tray. Action: Reseat the envelope tray. 795 OFFSET ERROR / RESEAT OFFSET BIN Meaning: There is a problem with the Offset Output Bin. Action: Make sure the Offset Output Bin is installed properly. 821 PS OPTION / RESEAT PS CF Meaning: The printer has detected an error with the Font
CompactFlash. 218    Infoprint 21: User’s Guide