Canon DADF-G1 Service Manual page 7

CONTENTS
2.8.1 Outline ......................... 2-27
2.8.2 Relationship Between the
Feed Belt and the Belt
Motor Drive Signal
(BMON), Belt Motor
Rotation Direction Signal
(BDIR), and Belt Motor
Rotation Speed Control
Signal (BMPWM) ....... 2-28
CHAPTER 3 MECHANICAL SYSTEMS
1 Basic Construction ....................... 3-1
1.1 External Covers ..................... 3-1
1.1.1 Detaching the DADF ..... 3-1
1.1.2 Removing the Covers .... 3-3
1.1.3 Side Guide Lock ............ 3-5
1.2 Switches ................................ 3-6
1.2.1 Adjusting the DADF
Switch (MS) .................. 3-6
1.2.2 Upper Cover Switch
(MS2) ............................ 3-6
1.2.3 Mounting the Original
Width Detecting
Volume ........................... 3-7
1.3 Adjusting the Height of
the Machine ........................... 3-9
2 Drive System .............................. 3-10
2.1 Removing the Pickup
Motor Unit .......................... 3-10
2.2 Removing the Feed Motor
Unit ..................................... 3-11
2.3 Belt Motor Unit ................... 3-13
2.3.1 Removal ....................... 3-13
2.3.2 Making Adjustments ... 3-15
2.4 Removing the Clutch Unit .. 3-16
3 Feed System ............................... 3-18
3.1 Pickup Roller Unit .............. 3-18
3.2 Pickup Roller ...................... 3-21
3.3 Separation Belt Unit ........... 3-22
3.4 Feed Roller Unit .................. 3-23
i v
2.8.3
2.9
2.10 Improperly Placed
2.10.1 Resetting ...................... 2-34
3 Power Supply ............................. 2-35
3.1
3.5
3.6
3.7
3.8
3.9
3.9.1
3.9.2
3.10 Adjusting the Position of
3.11 Feed Belt ............................. 3-42
4 Cleaning ...................................... 3-45
4.1
4.2
4.2.1
4.2.2
4.2.3
4.2.4
4.3
4.4
5 Lubricating ................................. 3-51
5.1
5.1.1
5.1.2
COPYRIGHT© 2000 CANON INC.
Protecting the Belt Motor
from Overcurrent ......... 2-28
Detecting a Jam ................... 2-29
Original ............................... 2-32
Outline ................................ 2-35
Registration Roller ............... 3-26
Delivery /Reversing Roller .. 3-31
Delivery Roller Unit ............ 3-36
Reversing Guide .................. 3-37
Stopper Plate Solenoid ........ 3-40
Removal ....................... 3-40
Making Adjustments .... 3-41
the Paper Deflecting Plate
Solenoid (SL3) .................... 3-41
Belt Assembly ..................... 3-45
Sensors ................................ 3-46
Cleaning the Original
Sensor (S1) .................. 3-46
Original Sensor
Reflecting Segment ...... 3-47
Registration Sensor
(S3) .............................. 3-47
Registration Sensor
LED3 ........................... 3-48
Separation Flapper .............. 3-49
Separation Front Guide ....... 3-50
Pickup Drive Assembly ...... 3-51
Rear ............................. 3-51
Front ............................ 3-51
CANON DADF-G1 REV.0 OCT. 2000