Canon MF4690 - ImageCLASS B/W Laser Service Manual page 173

Character
Operation key test (2) correspondence diagram
Character
The flow of operation panel testing is shown below.
Operation key test (1)
Operation key test (2)
Lamp test (6-8: LAMP TEST)
Press numeric keypad key 8 on the FACULTY menu to select the scan lamp illumination mode. The test checks to see if the scan lamp is on or not.
Numeric keypad key 1 selects LAMP TEST ALL. Press the start key to turn on all scan lamps. LAMP TEST AGC is not used.
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.
Operation key
C OK key
D Additional Functions key
E Status Monitor key
F Collate/2 on 1 key
G Image Quality key
H Enlarge/Reduce key
Operation key
0 SEND/FAX key
3 Recall/Pause key
4 Address Book key
6 - 7 : O p e r a t i o n P a n e l
Press the start key
LCD test
Press the start key
Press the start key
LED lamp test
Press the start key
0 1 2 3 4 5 6 7 8 9 * # A B C D E F G H
I L M N O P R S U
0 3 4 5 8
A B C D E F G H
The test is finished when the stop key
is pressed after deleting all characters
Character Operation key
N 2-Sided key
O Enagy Saver key
P Clear key
R COPY key
S SCAN key
ID key
U
T-14-25
Character Operation key
5 Coded key
8 Hook key
A - H One-touch key
All H characters are displayed
All black dots are displayed
All LED dots are displayed
A character disappears when
the corresponding key is pressed
A character disappears when the
corresponding one-touch dial key is pressed.
F-14-14
Chapter 14
14-33