Tools for troubleshooting
Component diagnostics
Engine-test page
The product has an engine-test page in the firmware that is printed by opening and closing the scanner
assembly, top door, front door, and rear door in a specific pattern. Use A4 or letter-size paper to print the
engine-test page.
1. Make sure that paper is correctly loaded in the tray.
2. Turn off the product.
3. Lift the scanner assembly, and then open the top cover, the front door, and the rear door.
4. Turn the product on. Within 10 seconds of turning the product on, close the front door, rear door, top
cover, and scanner assembly to start the internal engine-test.
If the engine test is successful, an engine-test page prints. The engine-test page has a test pattern of
horizontal lines.
LCD control-panel tests
The product includes diagnostic tests for the LCD control panel.
Test the LCD control-panel display
Use this test to verify that all of the LEDs and characters on the LCD display function correctly.
1. Press the Setup
button.
2. Press the left arrow
button and the OK button at the same time. The 2ndary service menu is
displayed.
3. Open the Display test menu.
When this test is selected, the LEDs will first be turned on one at a time. Press OK to continue with the
next LED. After each LED has been tested, the character display test will begin by testing the pixels on
each line. The last portion of the test begins by displaying each of the 255 characters 16 characters at a
time.
4. Press OK to see the next 16 characters, or press the Cancel
button to discontinue the test.
Test the LCD control-panel buttons
Use this test to verify that all of the buttons on the LCD control panel function correctly.
1. Press the Setup
button.
2. Press the left arrow
button and the OK button at the same time. The 2ndary service menu is
displayed.
3. Open the Button test menu.
4. Press the indicated button to continue to the next step in the test.
36 Chapter 2 Solve problems ENWW
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