Canon ImageRUNNER 1022iF, Service Manual, Page: 247 / 270

Chapter 15
15-41
F-15-22
Line signal reception test (9: LINE DETECT)
Press numeric keypad key 9 on the FACULTY menu to select the line signal reception test. In this test, verify the successful operations of the NCU signal sensor
and the frequency counter. Menu 1 detects the CI state, while menu 3 detects the CNG signal.
Test menu 1
Press numeric keypad key 1 on the LINE DETECT menu to select test menu 1. When CI is detected on the telephone line connection terminal, the LCD
display changes from OFF to ON, indicating the received frequency. The LCD also displays the on-hook or off-hook state of an external telephone set as
detected. The LCD displays, from left to right, CI, CI frequency, hook port and FC with indications of 1:ON and 0:OFF.
Test menu 2
Press numeric keypad key 2 on the LINE DETECT menu to select test menu 2. When the CNG signal is detected on the telephone line connection terminal,
the LCD display changes from OFF to ON, indicating the received frequency. The LCD displays the status of CML, CNG and FED detection, from left to
right, with ON/OFF indications. Numeric keypad key 2 turns on the CML relay to detect CNG.
Test menu 3
Press numeric keypad key 3 on the LINE DETECT menu to select test menu 3. When the CNG signal is detected on the telephone line connection terminal,
the LCD display changes from OFF to ON, indicating the received frequency. The LCD displays the status of CML, CNG and FED detection, from left to
right, with ON/OFF indications. Numeric keypad key 3 turns off the CML relay to detect CNG.
15.15.6 Roller cleaning mode ((0) ROLLER CLEAN)
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/ / / / iR1018 / iR1018J / / iR1022A / iR1022F / iR1022i / iR1022iF /
Roller cleaning mode ((0) ROLLER CLEAN)
Press numeric keypad key 0 in test mode to select roller cleaning mode. Press numeric keypad keys 1 and 2 during this test to enter the following menus:
Numeric keypad key 1
Press the start key clean the ADF pickup/feed rollers by idling.
Press the stop key to exit this mode.
Numeric keypad key 2
Press the start key clean the unit transfer rollers by idling.
Press the stop key to exit this mode.
Press the start key.
All-H character display
All-black display
All-LED illumination
Press the keys associated with
characters on display to erase
the characters.
Press the one-touch dialing keys
associated with characters on
display to erase the characters.
LCD test
LED lamp test
Operation key
test (1)
Press the start key.
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Press the start key.
Press the start key.
Operation key test (2)
After erasing all characters on display,
press the stop key to exit the test.
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