Dadf Board - Samsung CLX-8540ND Service Manual

2.3.2.3 DADF Board

The DADF board controls the DADF (Duplex Automatic Document Feeder) unit.
A DADF board controls 2 stepping motors, 2 clutches, 1 solenoid,10 sensors by using a CPU(S3F443FX )
with 80MHz core frequency. A DADF board supports a customer to copy Max 100 sheets of documents
automatically. CLX-8540 series have a DADF module as a default function, and also, the DADF supports up
to 65% of duplex speed.
SCAN MOTOR
DRIVER
SCAN
MOTOR
Service Manual
Product Overview
R_STACK
EXIT EXIT
GATE
MOTOR MOTOR
LENGTH DETECT/WIDTH
COVER
OPEN
DUPLEX/SCAN/
EXIT SENSOR
MAIN I/F
MPU: MPU:
S3F443FX S3F443FX
DOWNLOAD
2-27
REGI
SENSOR
HYPER
(DEBUG)
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