System Overview
Samsung Electronics
Service Manual
3-3
3.1.4 Fax
1) Modem part
Implemented by based on Conexant DAA (Data Access Arrangement) Solution, and is roughly composed of
two kinds Chip Solution
- CX86710 (SFX336) : Existing Modem Chip which adds SSD (System Side Device) for interfacing between LSD and
DIB of FM336Plus Core
- CX20493 (LSD) : LIU (Line Interface Unit) Chip which is controlled by SSD and satisfies each PSTN Requirements by
modulating internal Configuration with connecting Tel Line.
2) Line Interface Part
This is Connection Part between system and PSTN(Public Switched Telephone Network), and primary circuit is usually
located. Main functions are Line Interface, Telephone Connection and Line Condition Monitoring.
3.1.5 Mechanical
1) Feeding Part
Feed Type : Universal Cassette Type
Feed Standard : Side Loading
Feed Capacity
< Cassette> : 550sheets (75g/ , 20lb paper based on)
<Bypass tray> : 100sheets (75g/ , 20lb paper based on)
Feed Separation Method
<Cassette> : Separation Claw Method
<Bypass tray> : Friction Pad Method
Driving System : Driving by gearing from Main Motor
Pickup Roller Driving Control : Solenoid
Pickup Roller Rubber Material
<Cassette > : EPDM+IR
<Bypass tray> : EPDM+IR
Paper detection Sensor : Photo Sensor
Paper Size Sensor : None
Feed Type : Face Up
Paper Exit Type : Face Down
2) Transfer Ass’y
High Pressure Voltage Type : Constant Voltage PWM Control Type
Roller Material : NBR Sponge Rubber
Roller Structure : Mono-layer
Life : 100,000 pages printing or more
