Canon DADF-Q1, Service Manual

Page: 140 / 156

Chapter 4
4-30
3) Press the push switch (SW2) on the ADF controller PCB.
- DSP1 will go on or flash to indicate the width of the original each time the position of the side guide is changed.
F-4-147
T-4-25
Note: * The original width detecting switch (SW301) may be faulty.
4) Press the push switch (SW2) on the ADF controller PCB to end the operation.
4.4 Troubleshooting
4.4.1 Error Code
4.4.1.1 E402
0011-3664
E402
1) Set the DIP switch (SW1) on the ADF controller PCB as indicated.
F-4-148
Press the push switch (SW2). Does the belt motor (SW2) rotate?
(To stop the operation, press the push switch (SW2) once again.)
YES: Go to step 3).
B elt motor (M2)
2)Does it become good if the belt motor is exchanged?
YES: End.
NO: Go to the next step.
Belt motor clock sensor (PI1)
3) Set the meter range to 10 VDC. Does the voltage between connectors J12-2 (+) and J12-1 (-) on the ADF controller PCB alternate between 0 and 5 V when
the belt motor is rotated by hand?
NO: Replace the belt motor clock sensor (PI1).
Cable
4) Is the cable between the belt motor driver PCB and the ADF controller PCB connected properly?
NO: Connect it properly.
Belt motor driver PCB,
DSP1 indication Default size DSP1 indication Default size
0 ON A4 0 ON A4
Flash Non-default Flash Non-default
1 ON LTR 1 ON LTR
Flash Non-default Flash Non-default
2 ON B4 2 ON B4
Flash Non-default Flash Non-default
3 ON LTR 3 ON LTR
Flash Non-default Flash Non-default
4 ON A4 4 ON A4
Flash Non-default Flash Non-default
5 ON ERROR* 5 ON ERROR*
Flash ERROR Flash ERROR
6 ON ERROR 6 ON ERROR
Flash ERROR Flash ERROR
7 ON ERROR* 7 ON ERROR*
Flash ERROR Flash
J1
J2
J5
J3
J6 J7 J8 J9 J10
J16 J15
J11
J14
IC8
J13
J12
J4
CB1
SW1
DSP1
SW4SW3SW2