Canon DADF-Q1, Service Manual

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Chapter 4
4-23
1) While DSP1 is indicating 'NG', press the push switch SW3 or SW4 to se-
lect the sensor.
T-4-12
2) At the end of the operation, press the push switch (SW2) on the ADF con-
troller PCB.
4.3.3 Auxiliary Adjustmant
4.3.3.1 Outline
0011-3507
T-4-13
4.3.3.2 Adjusting the Degree of Arching at the
Registration Roller (pickup from the tray), (at time of
reversal), (manual feed mode)
0011-3508
1) Remove the screw [1], and detach the ADF controller cover [2].
F-4-113
2) Set the DIP switch (SW1) on the ADF controller PCB as follows to suit
the need:
T-4-14
3) Place a single sheet [1] of A4 or LTR copy paper in the original tray.
Alarm 1 No
Alarm 2 Yes
Faulty Yes
Switch DSP1
indication Sensor or motor in question
SW3 1 Original sensor (S6)
2 Original trailing edge sensor (S7)
Separation sensor (S4)
Condition DSP1 indication Check or replace
3 Separation sensor (S4)
4 Skew sensor (S5)
5 Pre-registration roller paper sensor (S2)
6 Post-registration paper sensor (S3)
7 Reversal sensor (S1)
8 Pre-last original paper sensor (S8)
SW4 9 Delivery motor (M5)
Switch DSP1
indication Sensor or motor in question
Item to adjust Function
Degree of arching at the registration roller
when pickup is from the tray Removing the skew for CW pickup
Degree of arching at the registratoin roller at
time of reversal Removing the skew at time of reversal
Degree of arching at the registration roller in
manual feed mode Removing the skew in manual feed mode
Speed of the feeding belt Fine-adjusting the reproduction ratio for stream reading mode
Speed of reversal Fine-adjusting the speed of reversal
Checking the sensor output Checking the presence/absence of paper
over a specific sensor
Hinge spring pressure Adjustment of a hinge hold angle
[1]
[2]
Item Switch setting
Pickup from tray
Reversal
Manual feed