Xerox 4250c 用户指南

The Audio Tones Test verifies that the Audio Tone on the UI is functioning 
properly.

Select Start Test to begin the test. The Audio Tone will activate if it is 
functioning properly.

Select End Test to end the test.  The Test Pass/Fail screen displays.

Select the Passed button if the audio tones have sounded correctly.  Select 
the Failed button if any of the audio tones are not functioning properly.

The Display Pixel Test verifies that each pixel on the display is functioning properly.

Select Start Test to begin the test.  The display will turn white.  

Press 2 on the keypad to toggle the display between white and black.  If the 
display is not all the same color, then the test was not successful.

Press 1 on the keypad to conclude the test.

Select the Passed button if all the screen on the User Interface changed color 
from black to white, otherwise, select the Failed button.

The LED Indicator test verifies that all of the lights on the control panel are 
functioning properly.

Select Start Test to begin the test. Each light will light for a short period of 
time if it is functioning properly.  The lights will continue to cycle until the test 
is ended.

Select End Test to end the test.  The Test Pass/Fail screen displays.

Select the Passed button if all the LEDs on the control panel are functioning 
properly.  Select the Failed button if any of the LEDs on the control panel are 
not functioning properly.

The Video Memory Test verifies that the memory used by the video controller on 
the User Interface is functioning properly.

Select Start Test to begin the test.  A message will be displayed indicating 
whether or not the test was completed successfully.

Rebooting / Restarting the User Interface will cause the Power On Self-Test cycle 
to begin.  The User Interface will pause for several seconds before starting the 
Reboot process.