DIAGNOSTIC CINTROL UNIT
QUICK REFERENCE
Model :ML-6000 Series
DocuPrint P1202
04 BIAS52
05 LSU READY
07 1ST PAPER
08 ENVELOPE
09 COVER OPEN
10 OVER HEAT
BIAS1
LSU MOTOR & LD
SCF PAPER EMPTY
EXIT SENSOR
PRINT HEAT
BIAS0
LSU MOTOR
MP PAPER
FEED SENSOR
STANDBY
OFF
ON
SELF
TEST
00 MAIN MOTOR ON
01 MHV ON
02 THV "-"ON
03 THV "+" REF VOLTAGE
04 BIAS ON
05 LSU ON
06 PICK UP ON
07 CHECK PAPER EMPTY SENSOR
08 CHECK FEED EXIT SENSOR
09 CHECK COVER SENSOR
10 FUSER ON
11 HOT BURNING
12 CLEAN PRINT
13 CHECK THV ON DUTY
14 THERMISTER II CHECK
15 FAN ON
DIAGNOSTIC CODE
00 READY(LEGAL)
01 READY(LETTER)
02 READY(A4)
03 READY(EXECUTIVE)
04 READY(B5)
05 READY(FDLIO)
20 PRINT START
22 PRINT START(2’CASSETTE)
23 PRINT START(MP TRAY)
30 FEED SENSOR 1’st ON
31 FEED SENSOR 1’st OFF
40 FEED SENSOR 2’nd ON
50 PAPER OUT
60 OPEN FUSER ERROR
61 WARM UP
62 LOW HEAT ERROR
64 COVER OPEN ERROR
68 OVER HEAT ERROR
70 NO PAPER or NO CASSETTE
71 PAPER JAM0
72 PAPER JAM1
73 PAPER JAM2
90 MPF PRINT MODE
94 NO PAPER in MP TRAY
95 LSU NOT READY
99 GREEN MODE
STATUS CODE
STATUS
DIAGNOSTIC
DCU MODE DOWN SHIFT STOP
UP
ENTER
IF YOU WANT TO ENTER THE DCU MODE.
TURN THE POWER SWICH ON WHILE PRESSING ALL THREE KEYS.
3-3 Recommended Test Equipment
Samsung recommends the following equipment when servicing the Laser Printer.
Digital Multimeter
A digital multimeter with attached LED or LCD 4-digit Panel
Oscilloscope
A digitizing oscilloscope which can measure more than 100MHz
High Voltage Probe
A high voltage probe which can measure about less than 10KV
DCU (Diagnostic Control Unit)
DCU can be supplied from Samsung which can easily shows the engine’s
error status
3-6
Samsung Electronics
Table 3-4-1 Equipment List
Figure 3-4-1 DCU
Reference Information