Product spec and feature
Samsung Electronics
Service Manual
2-15
12) LSU(Laser Scan Unit)
* Consisted of LD(Laser Diode) and Polygon Motor Control.
13) Main Drive Unit
This motor drives, by way of a gearbox, the OPC unit, PTB unit, feeder unit, fuser unit, exit unit and
duplex unit.
> Spec.
* Power : 20W Max (24V)
* Drives : OPC unit, PTB unit, Fuser, Feeder, Duplex unit, Exit unit
14) DEVE Drive Unit
This motor drives, by way of a gearbox, the toner cartridges and PTB cleaning cam.
> Spec.
* Power : 20W Max (24V)
* Drives : DEV (4 Color)/ITB Cleaning)
15) SMPS (Switching Mode Power Supply)
This power supply uses the AC supply voltage to generate the DC voltages used by the system.
The SMPS has 5 output channels (+3.3V, +5V, +24V, +24VF1, +24VF2).
The AC Heater Control Unit that supplies power to the fuser is also located on the SMPS.
Error Phenomenon
Polygon Motor Error The Rotation of Polygon Motor can not reach stable
Hsync Error Though the rotation of Polygon Motor reach stable, the signal of Hsync
is not occurred