Xerox Phaser 6280, Service Manual, Page: 293 / 672

Phaser 6280 Color Laser Printer Service Manual 4-5
General Troubleshooting
Service Diagnostics
The Phaser 6280 Color Laser Printer has built-in diagnostics that allow
access to Sensors, Clutches, Solenoids, printer status, turning the motors On
and Off, and some NVRAM access. Using these tests, service technicians
should be able to diagnose the problems quickly and isolate which component
or sub assembly part needs replacement.
If confronted with an error that requires more than a cursory investigation to
clear or when directed by a troubleshooting procedure, use Service
Diagnostics to exercise selected sub-assemblies or parts in the vicinity of the
reported error. Diagnostic tests are controlled from the Control Panel and are
described in detail in “Service Diagnostics” on page 4-5.
Entering Service Diagnostics
1. Turn the printer power Off.
2. Press and hold the Up and Down Arrow buttons simultaneously and turn
the printer power On.
3. Diagnosing... message is displayed.
4. Continue to hold the buttons until the Service Mode message is
displayed on the Control Panel and release the buttons.
Using Service Diagnostics
Most of the diagnostic tests are straightforward and require no additional
explanation, but there are some that require specific conditions be met to
achieve meaningful results. These instructions cover each of the test groups,
listing special instructions, conditions, or other information necessary to
successfully interpret the results of the diagnostic tests.
Service Diagnostics Control Panel Button Descriptions
Control Panel Button Description
Button Function
Menu Displays printer menu.
Up Moves from one item to another.
Down Moves from one item to another.
Left Moves the cursor to the left.
Right Moves the cursor to the right.
OK Confirms settings or executes a task.
Exit/Cancel Resets a diagnostic item, cancels a task, or exit the menu.
Wake Up Function not available in Diagnostics mode.