Canon DADF-R1, Service Manual

Page: 51 / 222

Chapter 2
2-25
7) Close the DADF.
8) Adjust the original stop position using the push
switches (SW3, SW4) on the DADF controller
PCB.
A press on each switch will shift the original stop
position by 0.5 mm. When done, press the push
switch (SW2).
-> The original will be discharged, and the change
will be saved.
F-2-90
T-2-5
F-2-91
<EX> If the copy paper stop position is displaced by
12 mm on the copyboard glass,
- Keeping the copy paper on the copyboard glass,
close the DADF.
- To change the stop position by 1 mm to the left,
press the push switch (SW4) twice (1/0.5=2), and
then press the push switch (SW2).
-> The copy paper will be discharged, and the
change will be saved.
9) Put the DIP switch (SW1) of the ADF controller
PCB back to its initial configuration, and mount
the ADF controller cover.
C. Document Tray Pickup ((small-size stream
reading))
1) Turn ON the power.
2) Set either one A4 document or LTR document [1]
on the document tray and execute copy.
F-2-92
3) Compare the document and the print image to
check that displacement of the leading edge
registration is 1 mm or less [A].
If the displacement is 1 mm or more, perform the
following step.
F-2-93
Switch Direction of shift
SW3 Right
SW4 Left
J1
J2
J5
J3
J6 J7 J8 J9 J10
J16 J15
J11
J14
IC8
J13
J12
J4
CB1
SW1
DSP1
SW4SW3SW2
Original
SW3 SW4
Holding down the push switch will not
shift the copy paper by more than a single
interval.