Canon iR4570 Series Service Manual page 125

18) Check to make sure that the communication between the host machine and the controller is correct.
Connect the power plug of the host machine, and turn on its power switch to see that LED2 [1] (orange) flashes.
19) Press the Start key on the host machine, and see that LED3 [1] (pink) flashes each time paper is delivered.
20) Attach the switch settings label [1] on the top cover of the controller, and record the settings of the switches.
21) Secure the top cover [2] of the controller in place using 2 screws [3]. When doing so, check to be sure that the
cable of the power supply unit is held in place by the cable guide inside the controller and is not trapped by the top
cover [2].
LED1 LED2 LED3
2 6
BAT1
1 1
SW3
SW2
LED5
SW4
[1]
LED6
LED4
IC6
[2]
SW1
[3]
CN3 CN2
F-2-91
[1]
LED1 LED2 LED3
2 6
BAT1
1 1
SW3
SW2
LED5
SW4
LED6
LED4
IC6
SW1
CN3 CN2
F-2-92
[25]
LED1 LED2 LED3
2 6
BAT1
1 1
SW3
SW2
LED5
SW4
LED6
LED4
IC6
SW1
CN3 CN2
F-2-93
1
2
CN4
1
2
CN4
1
2
CN4
Chapter 2
2-41