Canon DADF-B1 Service Manual page 64

MECHANICAL SYSTEM
I. BASIC CONSTRUCTION ............... 3-1
A. External Covers ..................... 3-1
B. Removing the Feed Belt Unit .. 3-4
C. ADF Controller PCB .............. 3-5
II. DRIVE SYSTEM ............................ 3-6
A. Removing the Pickup Unit ..... 3-6
B. Removing the Separation
Motor (M1) ............................. 3-6
C. Removing the Feed Motor (M2).... 3-7
D. Reversal Delivery Unit ........... 3-8
E. Removing the Reversal Delivery
Motor (M3) ............................. 3-9
III. FEEDING SYSTEM .................. 3-10
A. Removing the Separation Pad
Assembly ............................. 3-10
B. Removing the Separation
Roller ................................... 3-11
C. Removing the Pickup Roller .. 3-12
COPYRIGHT © 1999 CANON INC. CANON DADF-B1 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
VI. SENSORS ................................. 3-18
D. Mounting the Separation
Roller Unit ........................... 3-13
E. Removing the Reversing Roller
and Feed Roller ................... 3-14
F. Replacing the Feed Belt ...... 3-16
A. Removing the Original Set Sen-
sor PCB (U503) ................... 3-18
B. Removing the Original Set Indi-
cator LED PCB .................... 3-18
C. Removing the Last Original
Sensor PCB (U504) ............. 3-19
D. Original Width Detecting Volume
(VR) ..................................... 3-19
E. Removing the Pre-Registration
Sensor (U502) ..................... 3-21
F. Removing the Reversal Outlet
Sensor (U505) ..................... 3-21