451 FAN ERROR / POWER OFF/ON Meaning: The printer has detected a problem with the fan. Action: Switch the printer off, then on again. If this does not correct
the problem, call for service. 454 FUSER ERROR / POWER OFF/ON Meaning: The printer has detected a problem with the fuser. Action: Switch the printer off, wait 15 minutes, then power on. If this
does not correct the problem, call for service. 460 OFFSET ERROR / POWER OFF/ON Meaning: The printer has detected a problem with the offset output
bin. Action: Power off the printer, make sure the offset output bin is
installed correctly, then power on. If this does not correct the problem,
call for service. 511 LASER ERROR / POWER OFF/ON Meaning: The printer has detected a problem with the laser. Action: Switch the printer off, then on again. If this does not correct
the problem, call for service. 623 DATA ERROR / PRESS ENTER TO CONTINUE Meaning: The printer has detected a memory error. Action: Press Enter to continue. 630 NVM ERROR / POWER OFF/ON Meaning: The printer has detected a memory error. Action: Switch the printer off and reseat the controller card. Switch on
the printer power. If this does not correct the problem, call for service. 631 NVRAM ERROR / PARAMETERS RESET / PRESS ENTER Meaning: The printer has detected a memory error. Action: Press Enter to continue. 650 SERVICE PORT / CALL SERVICE Meaning: The printer has detected an error with the service port. Action: Call for service. 651 HW ERROR / CALL SERVICE Meaning: The printer has detected an error with the boot file on the
Resource Flash Memory Module. Action: Reseat the Resource Flash Memory Module. If the problem
recurs, replace the Resource Flash Memory Module Appendix C. Printer Messages 217