Canon iR4570 Series Service Manual page 119

7) Shift bit 4 of the DIP switch [1] (SW2-4) found on the PCB of the controller to ON (so that the communication
mode between the host machine and the controller will be IPC).
8) If IC6 [1] is found on the PCB, shift bit 7 of the DIP swish [2] (SW2-7) to ON; otherwise, shift bit 7 of the DIP
switch [2] (SW2-7) to OFF.
F-2-81
[1]
LED1 LED2 LED3
2 6
BAT1
1 1
SW2 SW3
LED5
SW4
LED6
LED4
IC6
SW1
CN3 CN2
F-2-82
[2]
LED1 LED2 LED3
2 6
BAT1
1 1
SW3
SW2
LED5
SW4
LED6
LED4
IC6
[1]
SW1
CN3 CN2
F-2-83
[1]
1
2
CN4
1
2
CN4
Chapter 2
2-35