Xerox Phaser 4500, Service Manual

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Error Messages and Codes 3-9
Service Diagnostics
The Phaser 4500 Laser Printer has built-in diagnostics to aid in troubleshooting
problems with the printer. The Service Diagnostics Menu provides a means to test
sensors, motors, switches, clutches, fans and solenoids. Diagnostics also contain
built-in test prints, printer status and some NVRAM access.
Service Diagnostics are to be executed through the front panel by a certified service
technician only. Service Diagnostics can be entered one of two ways:
Entering without rebooting the printer:
1. From the printer’s main menu, scroll to Troubleshooting and press the OK
button, then scroll to
Service Tools
and press the OK button.
2.
Hold down both the Up and Down arrow buttons for about three seconds. When
the hidden Service Diagnostics menu appears, scroll to
Run Service
Diagnostics and press the OK button.
Entering by rebooting the printer:
1.
Turn the printer power OFF.
2.
Hold down the Back and Information buttons simultaneously and turn the
printer back ON.
3.
Continue to hold the buttons until the following message is displayed on the front
panel:
Entering Service Diagnostics , and then release the buttons.
4. The front panel displays the Service Diagnostics Menu .
You can print a Service Diagnostics Menu Map by highlighting Print Service
Menu Map , and pressing the OK button. The printer will run through POST and
return to
Ready.
You will need to re-enter service diagnostics. The Service
Diagnostics Menu Map is also available in the Appendix on page A-4.