Chapter 3
3-15
3.5.2 Operation Sequence
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3.6 Document Feeding/Delivery
3.6.1 Basic Operation
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After completion of stream reading on the document glass, the document is delivered to the document delivery unit as discussed below.
a. Document feed/delivery
After moving past the reading position, the document is fed by the read roller 2 and delivery reversal roller driven by the pickup/feed motor (M1) which is turning
in the reverse direction. The delivery reversal roller is normally pressurized; the Shift solenoid (SL2) turns on only when the document is reversed for duplex print-
ing.
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Document set sensor
(SR5)
Pressurization solenoid
(SL2)
Delivery reversal sensor
(SR3)
Pickup/feed motor
(M1)
Pickup clutch
(CL1)
Timing sensor
(SR4)
Registration sensor
(SR1)
Registration clutch
(CL2)
Read sensor
(SR2)
Image leading edge signal
Document reversal
Document’s
reverse side
reading
Document reading
Document
separation/feed
Read stanby
loop formation
: Reverse rotation of motor
Original replacement
Start key ON
Document pickup signal input
loop formation
S
L
2
S
L
2
M1M1
Delivery
reversal
roller
Reading position
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