Chapter 1515-68ADF Test (6-4: ADF)Use it to check the operation of the ADF.Press '4' on the keypad while the FACULTY TEST menu is indicated to select ADF test.Place an original in the original placement area, and press the Start key so that the original will be moved at a specificspeed.Select this item, press 10 originals in the ADF, and press '8' on the keypad to execute registrationarch auto adjustment (only if equipped with ADF functions). (See 1.3.4 of Chapter 7.)Speaker test (6-6: SPEAKER)Use it to check the operation of the speaker.Press '6' on the keyboard while the FACULTY TEST menu is indicated to select speaker test. In the test, tonal signalsounds of between 200 Hz to 5 kHz at 100-Hz intervals are generated white changing the volume. Check to see if thespeaker generates these signals.F-15-22Control Panel Test (6-7: OPERATION PANEL)This test is used to check the operation of the control panel.A press on '7' on the keypad from the control panel selects the OPERATION PANEL Test menu, enabling thefollowing tests:- LCD TestA press on the Start key under OPERATION PANEL test will start LCD test, in which the screen will be filled withthe character H; another press will cause the screen to turn totally black.- LED Lamp TestA press on the Start key after the LCD test selects the LED lamp test, turning all lamps in the control panel to go ON.- Control Key TestA press on the Start key after the LED lamp selects control key test 1. Press the key indicatedon the LCD; if it goes out, the operation is normal.When all characters have gone out, control key test 2 (if equipped with fax functions) is started. As in the case ofoperation key test 1, press the key indicated on the LCD; the operation is correct if it goes out.Key Correspondence for Control Key Test 1 (if not equipped with fax functions)6-6: SPEAKERFREQ:[1] VOL:[2]Press '1' on the keypad.6-6: SPEAKERFREQ TEST6-6: SPEAKERVOL[*] :MIN [#]:MAXPress '2' on keypad.Press the Start keyto change thetransmission frequency.Adjust the volumeof the signals; at *,min.; at #, max.;may be changed insteps by pressing theStart key.