Paxar Monarch 9433 - Manual (Page 23)

Using Diagnostics 2-11
3. Press F to return to the Display menu.
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.