Xerox Document Centre 255 LP Reference Manual page 145

Symptom
l
No audio tones
l
The display is not
readable or portions
omitted
l
LEDs on the control
panel not functioning
l
You have been asked to
complete this test by a
Xerox technician.
l
Machine not responding
to commands from the
User Interface
l
The User Interface is not
responsive.
l
The software will not
recognize new hardware.
l
Appears to scan the
original but won't print
Xerox Document Centre Reference Guide
Applicable Tests
The Audio Tones Test helps to determine if the audio tones
on the UI are functioning correctly.
The Display Pixel Test verifies that each pixel on the display
UI is functioning correctly. Press 2 to toggle between white
and black screen. Press 1 to end the test.
The LED Indicator Test allows you to determine if the
LEDs on the UI are functioning correctly.
The Video Memory test allows the you to determine if the
memory used by the video controller is functioning correctly.
Use the Communications Self Test to verify that the User
Interface is communicating correctly with the rest of the
machine.
Reset User Interface. This resets the software that runs the
User Interface without powering off the machine.
Application Checksum Verification. Use to isolate
problems and to verify that the system software is not
corrupted.
Video Path Diagnostics. Use to isolate problems and to
verify that the electronic path between the scanner and
Xerographic module is functioning correctly.
Page 11 - 5