Duplo DC-616, Service Manual

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23
Chapter 2 1 Paper Feed Section
2
S2-Y1540
<Circuit diagram>
<Circuit diagram>
5V
5V
1
2
3
6
7
8
CN2-10
11
12 Blue
Yellow
Red Red
Yellow
Blue
Light not transmitted: 5V
Light transmitted: 0V
Main PCB unit
2. Elevator Upper Limit Switch
<Operation>
If the topmost sheet of paper cannot be detected, and
the feed tray continues to go up, the air suction unit
is pulled away from the elevator upper limit switch to
come to the “OFF” state.
The elevator upper limit switch stops the machine
operation immediately once it comes to the “OFF”
state.
3. Elevator Motor
<Operation>
Elevator motor rotation lets the feed tray move up and
down.
CN5-2
1
M
1
2
1
2
Level sensor
Elevator motor
Elevator upper limit switch
Brown
Brown
Black
Brown Brown
Black
Drive PCB unit
-0
Brown