Samsung ML-1440, Service Manual, Page: 43 / 86

Troubleshooting
4-5 Samsung Electronics
4-1-6 DCU Panel
DIAGNOSTIC CONTROL UNIT
QUICK REFERANCE
04
05
07
08
09
10
BIAS 3
LSU READY
PAPER EMPTY
CRU
COVER OPEN
COER HEAT
BIAS 1
LSU MT&LD
SCF
EXIT SENSOR
COVER COVER
PRINT HEAT
BIAS 0
LSU MOTOR
MP
FEED SENSOR
OUT BIN
STANDBY HEAT
ON OFF
STATUS
SELF
TEST
DIAGNOSTIC
DIAGNOSTIC CODE
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
00
01
02
03
04
05
06
20
21
22
40
50
60
62
68
61
64
65
69
70
71
72
73
76
90
95
MAIN MOTOR OPERATION
MAIN HIGH VOLTAGE ON
TRNSFER HIGH VOLTAGE (-)ON
THV(+) REFERANCE VOLTAGE
DEV/SUPPLY VOLTAGE ON
LSU OPERATING TEST
PICKUP CLUTC ON
PAPER EMPTY SENSOR TEST
FEED & EXIT SENSOR TEST
COVER OPEN SENSOR TEST
FUSER TEST
HOT BURN TEST
CLEAN (MESSAGE)PRINT
THV(+)TRIGGER &THV ON
MP PICKUP ON
FAN TEST
PAPER SIZE SENSOR TEST
SMD TEST
GREEN STATUS CODE
88
99
STATUS CODE
READY (REGAL)
READY (LETTER)
READY (A4)
READY (EXECUTIVE)
READY (B5)
READY (FOLIO)
READY (A5,A6)
PRINT START (1’st CASSETTE)
PRINT START (MP)
PRINT START (2’nd CASSETTE)
FEED SENSOR 2’st ON
PAPER OUT
OPEN FUSER ERROR
LOW HEAT ERROR
OVERHEAT ERROR
WARM UP
COVER OPEN ERROR
CRU ERROR
SLEEP MODE
NO PAPERR or CASSETTE
PAPER JAM 0
PAPER JAM 1
PAPER JAM 2
OUTBIN FULL ERROR
MANUAL PRINT MODE
LSU NOT READY
DCU MODE DOWN SHIFT STOP
UP ENTER
O ENTER DIAGNOSTIC MODE, PUSH THREE BUTTONS SIMUL ANEOUSL
THE PRINTER POWER ON.