Canon DADF-Q1, Service Manual

Page: 137 / 156

Chapter 4
4-27
1) Remove the ADF controller cover [2] by removing the screw [1], and set
the DIP switch (SW1) on the ADF controller PCB as indicated (normal
operation mode).
F-4-126
F-4-127
2) Press the push switch (SW2) once.
- The 7-segment LED (DSP1) on the ADF controller PCB will start to
flash [1] to indicate that a check on the sensor operation has started.
F-4-128
3) Press the push switch SW3 or SW4; the indication of the 7-segment LED
(DSP1) will change to indicate the state (paper present/absent) of the sen-
sor in question.
F-4-129
T-4-22
4) To end the check, press the push switch (SW2) once.
- The LED2 indication will return to normal mode.
F-4-130
4.3.3.6 Hinge spring pressure adjustment
0011-8524
1.How to Check the Hinge
1) Open the ADF widely.
(2)
Original trailing edge sensor (S7)
(8)
Manual feed registration roller paper sensor (S9)
(3)
Separation sensor (S4)
(9)
Pre-reversal sensor (PI4)
(4)
Skew sensor (S5)
(A)
Original paper sensor (PI13)
(5)
Pre-registration roller paper sensor (S2)
(b)
Manual feed set sensor (PI12)
(6)
Post-registration roller paper sensor(S3)
(c)
ADF closed/open sensor
(PI10)
(d)
Upper cover sensor
(front; PI6)
(e)
Upper cover sensor
(rear; PI3)
DIS1
Sensor in question (notation)
DSP1
Sensor in question (notation)
[1]
[2]
J1
J2
J5
J3
J6 J7 J8 J9 J10
J16 J15
J11
J14
IC8
J13
J12
J4
CB1
SW1
DSP1
SW4SW3SW2
DSP1 Presence/absence of paper
ON Present
Flashing Absent
J1
J2
J5
J3
J6 J7 J8 J9 J10
J16 J15
J11
J14
IC8
J13
J12
J4
CB1
SW1
DSP1
SW4SW3SW2
J1
J2
J5
J3
J6 J7 J8 J9 J10
J16 J15
J11
J14
IC8
J13
J12
J4
CB1
SW1
DSP1
SW4SW3SW2