Samsung CLX-6210FX Service Manual page 36

8) LSU
LSU consists of LD(Laser Diode) and polygon motor control. When the controller generate the printing sig-
nal LD will turn on and Polygon motor starts. If the receiving part in LSU detect the beam and then Hsync is
generated. When the rotation of polygon motor is steady, it is time of LSU ready status for printing. If either
of two condition is not satisfied, LSU error is expected.
Trouble
Polygon Motor Error
Hsync Error
9) Main Drive Unit
This motor drives, by way of a gearbox, the Toner Cartridge, PTB unit, feeder unit, fuser unit.
> Spec.
* Power : 20W Max (24V)
* Drives : Toner Cartridge, PTB unit, Fuser, Feeder
10) 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)/PTB Cleaning)
Service Manual
Product spec and feature
Failure Analysis
No steady rotation of Polygon Motor
In spite of steady rotation of Polygon Motor,No the
generation of the Hsync signal
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Samsung Electronics