How To Use Dcu - Samsung ML-2851ND/XAZ Service Manual

4.1.6 How to use DCU

4.1.6.1 DCU Setup
You can examine the malfunction of the printer. To perform DCU, open the front discharge cover and leave the
connect the harness wire(4 pin) to the CN17 of the Main control board.
STATUS
DIAGNOSTIC
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
DIAGNOSTIC
MODE
TO ENTER DIAGNOSTIC MODE, PUSH THREE BUTTONS SIMUL ANEOUSL
AND TURN THE PRINTER POWER ON.
Service Manual
Alignment & Troubleshooting
ML SERIES DIAGNOSTIC CONTROL UNIT
DIAGNOSTIC CODE
MAIN MOTOR OPERATING SYSTEM
MAIN HIGH-VOLTAGE ON
TRNSFER HIGH-VOLTAGE (-)ON
THV(+) REFERANCE VOLTAGE
DEV/SUPPLY HIGH-VOLTAGE ON/PTL ON
LSU OPERATING SYSTEM
PICKUP CLUTCH ON
PEEMPTY/PWITH/NEW CRU TEST
FEED & EXIT SENSOR TEST
COVER OPEN SENSOR TEST
FUSER TEST
HOT BURN TEST
CLEAN MODE PRINT
THV(+)TRIGGER, ALL HV & FAN ON
THV(+) REFERENCE ON
DOWN
04 DEV 300 DEV 350
05 LSU READY LSU MT & LD
07 PAPER EMPTY PAPER WIDTH
08 EXIT SENSOR
09 COVER OPEN
10 COER HEATING PRINTING TEMP
ON OFF
STATUS CODE
61 WARM UP
00 READY (REGAL)
01 READY (LETTER)
02 READY (A4)
03 READY (EXECUTIVE)
04 READY (B5)
20 PRINT START
FEED SENSOR ON
30
FEED SENSOR OFF
40
PAPER OUT
50
SLEEP MODE
69
ERROR STATUS CODE
OPEN FUSER ERROR
60
LOW TEMPERATURE ERROR
62
OVER HEATING ERROR
68
COVER OPEN ERROR
64
NO PAPERR
70
PAPER JAM 0
71
PAPER JAM 1
72
PAPER JAM 2
73
95 LSU NOT READY
SHIFT
UP
4-9
DEV 350
LSU MOTOR
NEW CRU
SELF
FEED SENSOR
TEST
READY HEAT
STOP
ENTER
Samsung Electronics