CHAPTER 13 TROUBLESHOOTINGCOPYRIGHT © 2002 CANON INC. 2000 CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002 13-159Line Signal Reception Test (6-9: LINE DETECT)A press on ‘9’ on the keypad in the FACULTY TEST menu selects the LINE DETECTtest. Use test menu 1 to check the state of the external telephone, C1, and FC or to findout whether signals are correctly detected in NCU packages.• Test Menu 1A press on ‘1’ on the keypad in the LINE DETECT menu selects test menu 1, in whichthe indication on the display will change from ‘OFF’ to ‘ON’ when the eternal telephoneis identified as being in off-hook state. It also checks C1 and FC from the telephone lineterminal.• Test Menu 3A press on ‘3’ on the keypad in the LINE DETECT menu selects test menu 3, in whichthe indication on the display changes from ‘OFF’ to ‘ON’ when CNG is detected from thetelephone line terminal.• Test Menu 4A press on ‘4’ on the keypad in the LINE DETECT menu selects test menu 4, in whichthe operation of the answering message may be checked. A press on ‘0’ or ‘1’ on keypadwill send 2 types of answering messages to the telephone line and the speaker.ESS test (6-#: ESS TEST)A press on the # key in the FACULTY TEST executes the ESS (power save mode) testso that the machine will enter ESS mode, turning off all but the ESS key in the controlpanel. ESS mode may be turned off when the following takes place:• The ESS key is pressed.• An original is set in the ADF.• A fax message arrives.• The machine goes off-hook.• The report output time arrives.• The timer ring time arrives.
