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Using Diagnostics 2-11
4. Select Pixel.
Pixel Test
Press left key to
toggle pixel
display
Each dot on the display is called a pixel.
5. Press the left A. The display shows all pixels ON (black). If a pixel
is not on, make a note and call Service.
The left A is an ON and OFF toggle switch. Press the left A
again to turn OFF the pixels. The display shows all pixels OFF
(blank screen).
6. Press F until you return to the Diagnostics menu.
Keyboard
Use this menu to see if the buttons on the keyboard are working properly.
Main Menu
To exit, press F at any time.
1. From the Diagnostics menu, select Keyboard.
Press key
2. Press each key one at a time except for P (power). The four boxes
on the display represent a key. If the keys are working correctly, the
boxes turn black.
Press feed to exit
If one of the boxes does not turn black, that key is not working
properly. Make a note and call Service.
3. Press the F button to return to the Diagnostics menu.
Diagnostics
Online Diag. Setup Service File System Exit
Printer Display Keyboard Comm. RAM
Data
Dum
p
A
bout Exit