Samsung CLX-8540ND - Dadf Board

Product Overview
Service Manual
2-27
Samsung Electronics
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.
GATE
R_STACK
LENGTH DETECT/WIDTH
DOWNLOAD
EXIT
MOTOR
HYPER
(DEBUG)
REGI
SENSOR
DUPLEX/SCAN/
EXIT SENSOR
MAIN I/F
MPU:
S3F443FX
COVER
OPEN
SCAN
MOTOR
SCAN MOTOR
DRIVER
EXIT
MOTOR
MPU:
S3F443FX