102 Chapter 2 – Service mode EN
Other tests in Extended Service mode
The following chart shows tests that can be performed in Extended
Service mode and provides a brief explanation of each test:
Extended Service mode tests
Test Explanation
Keypad test Tests that all buttons are functioning (by
pressing the buttons in sequence).
LCD test Tests the control-panel display.
Control panel test Tests the control-panel lights.
Sensor states Shows current detector activation levels.
Detector 1 and detector 2 are paper-size
detectors. The control-panel display shows the
percentage of time each detector is activated.
All LCD characters Scrolls through the full list of control-panel
display characters.
Scanner plots Tests and recalibrates the document scanner.
Scanner LED After selecting this menu item, lift the
document-release door, and verify that all of
the LEDs in the contact image sensor are lit.
ADF feed test Runs the document-scanner pickup rollers
once.
ADF motor test Runs the document-scanner motor once.
Individual diagnostics Run individual tests from the self-test sequence
(see the Extended Service mode self-test
failures table).
Modem tone Generates tones with various frequencies from
300 Hz to 2425 Hz.
Modem modulation Generates various fax identification signals.
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