HP 3150 manual Other tests in extended service mode, Extended service mode tests Test Explanation

Other tests in extended service mode

The chart below shows tests that can be performed in extended service mode and a brief explanation of each test:

Table 16. Extended service mode tests

Test	Explanation
Keypad test	Tests all keypad keys by pressing in sequence.
LCD test	Tests the control panel display.
Control panel test	Tests the control panel lights
Sensor states	Shows current detector activation levels. 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.
Individual diagnostics	Run individual tests from the self-test sequence (see Table 15).
Modem tone	Generates tones with various frequencies from 300 Hz to 2425 Hz.
Modem modulation	Generates various fax identification signals.

194 Troubleshooting EN