Confidential
3-4
The automatic document feeder (ADF) consists of the pick-up roller, separation roller, paper feed
rollers 1/2/3/4, eject roller, ADF motor, switch back sensor, document rear sensor and document
front sensors 1/2.
For further details on the sensors, see Section 3.2.6.
Fig. 3-4
The duplex scanning mechanism allows you to use the following two types of scanning, “ADF
scanning” and “document glass scanning”. These two scanning methods are switched depending
on whether the document front sensor 1 detects the document or not when starting scanning.
Pic
-up rolle
Separation rolle
Paper feed rolle
1
SB rolle
ASSY
Flap C
Flap B
Switch back senso
Paper feed rolle
2
Document rea
sensor actuator
Document fron
sensor actuator 1
Document fron
sensor 1
Document fro
sensor actuator 2
Ejec
rolle
Document front sensor 2
Flap
Paper feed rolle
4
Switch back
sensor actuator
Document rea
senso
Paper feed rolle
3