Canon ImageCLASS MF4690, Service Manual

Page: 173 / 182

Chapter 14
14-33
Operation key test (2) correspondence diagram
T-14-25
The flow of operation panel testing is shown below.
F-14-14
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.
C OK key N 2-Sided key
D Additional Functions key O Enagy Saver key
E Status Monitor key P Clear key
F Collate/2 on 1 key R COPY key
G Image Quality key S SCAN key
H Enlarge/Reduce key U
ID key
Character Operation key Character Operation key
0 SEND/FAX key 5 Coded key
3 Recall/Pause key 8 Hook key
4 Address Book key A - H One-touch key
Character Operation key Character Operation key
Press the start 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.
LCD test
LED lamp test
Operation key test (1)
Operation key test (2)
Press the start key
6 - 7 : O p e r a t i o n P a n e l
Press the start key
Press the start key
The test is finished when the stop key
is pressed after deleting all characters
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