Samsung SCX-6320F, Service Manual

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Service Manual
Summary of Product
4-6
Samsung Electronics
4.2 System Layout
SCX6220/6320F can be divided into the following main constituent parts: Main Controller, Operator’s Panel,
PC Interface, Scanner, DADF, Line Interface and Power Supply. The Main Controller uses the SPGPm
processor. The Operator’s panel (OPE) and the DADF each have their own MICOM which communicates
serially with a UART built into the SPGPm processor. The Scanner uses the CIP4e processor to control the
CIS. The Line Interface is an FM336 integrated with the Main Board which communicates with the LIU at
speeds up to 33.6Kbps.
The Power Supply has both the SMPS and HVPS integrated on one PBA.
4.2.1 Feeding section
There is a universal cassette which automatically loads paper and the manual feed which supplies paper
single sheet at a time. The cassette has a friction pad which separates paper to ensure single sheet feed-
ing, and it has a sensor, which checks when the paper tray is empty.
- Feeding Method: Universal Cassette Type
- Feeding Standard: Center Loading
- Feeding Capacity: Cassette-550 sheets (75g/m2 , 20lb paper standard)
- Multi-function tray: 100 sheet (75g/m2 , 20lb paper standard.)
- Paper detecting sensor: Photo sensor
- Paper size sensor: None
- Driven by gearing from the main motor
4.2.2 Transfer Ass’y
This consists of the PTL (pre-transfer lamp) and the Transfer Roller. The PTL shines a light onto the OPC
drum This lowers the charge on the drum’s surface and improves transfer efficiency.
The transfer roller transfers toner from the OPC drum surface to the paper.
- Life span: 100,000 sheets (in 15~30°C)
4.2.3 Drive Ass’y
- Gear driven power unit. The motor supplies power to the paper feed unit, the fuser unit, and the
toner cartridge.
- Duplex motor drives output roller for forward and reverse functions.
- DADF Unit : the DADF has its own MICOM which controls the paper feed motors.
The two motors are, like the printer drive motors, used to feed the paper through the ADF
mechanism. The ADF duplex motor is used for reversing the paper feed for double sided
originals. Both DADF motors operate a a maximum of 2940pps.