Samsung ML-3471ND Especificaciones Pagina 19

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Service Manual
Product specification and feature
2-10
Samsung Electronics
2.2.1.2(f) Toner Cartridge
OPC Cleaning :Mechanical Cleaning by the cleaning blade.
The recycled toner : Trash room for the recycled toner
No shutter for protecting the OPC Drum
2.2.1.2(e) LSU
LSU is consist of LD(Laser Diode) and polygon motor control. When the controller generate the printing signal 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 poygon 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 Failure Analysis
Polygon Motor Error No steady rotation of Polygon Motor
Hsync Error In spite of steady rotation of Polygon Motor,
There is no generation of the Hsync signal
Cleaning Roller
Cleaning Blade
-650V
0.16mW
200V
-1.25KV
V
DC
= -460V
V
PP
= 1520V, f = 2.5KHz, Duty(-) = 32%
1
2
3
4
5
6
7
8
+4.2kV
-50V
+
-
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