Samsung ML-7300N Spezifikationen Seite 9
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2-2. Diagnostic Control Unit
2-2-1. Abstract
The diagnostic Control Unit(DCU) is useful for troubleshooting the Laser beam printer ML Series engines,
and for checking printer status.
The DCU can be used in common for ML series, but each model has several different code description.
Refer to the code description for ML-7300 in next page.
Reference
Samsung Electronics 2-3
ML-80 DIAGNOSTIC CONTROL UNIT
QUICK REFERANCE
04
05
07
08
09
10
BIAS 3
LSU READY
PAPER EMPTY
COVER OPEN
OVER HEAT
BIAS 1
LSU MT&LD
EXIT SENSOR
PRINT HEAT
BIAS 0
LSU MOTOR
FEED SENSOR
STANDBY HEAT
ON OFF
STATUS
SELF
TEST
DIAGNOSTIC
DIAG NOSTIC CODE
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
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
THV (+) DUTY
GREEN STATUS CODE
88
99
GREEN MODE READY
GREEN MODE WARM UP
STATUS CODE
00
01
02
03
04
20
21
23
30
31
33
34
40
43
47
50
60
62
68
61
64
69
70
71
72
73
90
95
READE (LEGAL)
READE (LETTER)
READE (A4)
READE (EXECUTIVE)
READE (B5)
PRINT START
PRINT START (MAMUAL)
PRINT START (2'nd PAPER)
FEED SENSOR 1'st ON
FEED SENSOR 1'st OFF
FEED SENSOR 1'st ON (2'nd PAPER)
FEED SENSOR 1'st OFF (2'nd PAPER)
FEED SENSOR 2'st ON
FEED SENSOR 2'st ON (2'nd PAPER)
FEED SENSOR 2'st OFF
PAPER OUT
OPEN FUSER ERROR
LOW HEAT ERROR
OVERHEAT ERROR
WARM UP
COVER OPEN ERROR
SLEEP MODE
NO PAPER or CASSETTE
PAPER JAM 0
PAPER JAM 1
PAPER JAM 2
MANUAL PRINT MODE
LSU NOT READY
* THE CONTROL CODES 13 & 14
ARE USEFU FROM THE EPROM
VERSION 5. X. X. FOR THE
ENGINE BOARD
DCU MODE DOWN SHIFT STOP
UP ENTER
IF YOU ENTER THE DCU MODE
TURNTHEPOWER SWITCH ON WITH HOLDING THREEKEYS DOWN
< Fig 1-1. ML-80 DCU >
- ML-7300 Series 1
- ELECTRONICS 2
- Contents 3
- 9. PCB Diagrams 5
- Circuit Description 5
- 11. Schematic Diagrams 5
- 1. Precautions 6
- 2. Reference Information 7
- Table 2-2. Acronyms 8
- 2-2. Diagnostic Control Unit 9
- Samsung Electronics 10
- Samsung Electronics 2-5 11
- 3 Product Information 13
- 3-2 Controller Specification 14
- 3-3 Electrical Specification 14
- 3-4 Environmental Condition 15
- •Input Paper Size 16
- •Feed capacity 16
- Item Description 16
- 4. Disassembly 17
- 4-3 Cabinet Disassembly 18
- Disassembly 19
- Cover Right to the backward 19
- Samsung Electronics4-4 20
- Samsung Electronics 4-5 21
- Samsung Electronics4-6 22
- Samsung Electronics 4-7 23
- Samsung Electronics4-8 24
- 4-5 Fuser Ass’y 25
- < Fuser Ass’y > 26
- Samsung Electronics 4-11 27
- < Bracket Motor Ass’y > 28
- Samsung Electronics 4-13 29
- 4-7 Pickup Ass’y 30
- 4-8 Laser Scanner Unit 31
- Samsung Electronics4-16 32
- 4-9 Multi Purpose Tray 33
- Samsung Electronics4-18 34
- < MP Ass'y > 35
- 4-10 Control Panel 36
- Samsung Electronics 4-21 37
- 4-11 Engine Controller Board 38
- Samsung Electronics 4-23 39
- Samsung Electronics4-24 40
- < PCU Ass’y > 41
- Samsung Electronics 4-26 42
- Samsung Electronics 4-27 43
- 4-13 Transfer Roller Ass’y 44
- 5. Troubleshooting 45
- Samsung Electronics5-2 46
- Troubleshooting 46
- INSERT IMAGE CARTRIDGE 47
- 5-3 Malfunction 48
- Samsung Electronics 5-5 49
- Samsung Electronics5-6 50
- Samsung Electronics 5-7 51
- Samsung Electronics5-8 52
- Samsung Electronics 5-9 53
- Samsung Electronics5-10 54
- Samsung Electronics 5-11 55
- Samsung Electronics5-12 56
- SPGP1:U27 58
- CPU:U19 58
- Self Test Error 59
- Engine Error 59
- Parallel Interface Error 60
- Printing Error 60
- Samsung Electronics5-18 62
- Samsung Electronics 6-1 63
- Samsung Electronics6-2 64
- Main Ass’y Parts List 65
- Samsung Electronics6-4 66
- Cover Ass’y Parts List 67
- Samsung Electronics6-6 68
- Samsung Electronics6-8 70
- Frame Ass’y Parts List 71
- 6-4. Cassette Ass’y 74
- Cassette Ass’y Parts List 75
- 6-5. MP Tray Ass’y 76
- MP Tray Ass’y Parts List 77
- 6-6. Pick Up Ass’y 78
- Pick Up Ass’y Parts List 79
- 6-7 Fuser Ass’y 80
- Fuser Ass’y Parts List 81
- 6-8. Shield Ass’y 82
- Shield Ass’y Parts List 83
- 6-9. Bracket Duplex Ass’y 84
- 6-10. Bracket Motor Ass’y 86
- Bracket Motor Parts List 87
- 6-11. Frame SCF Ass’y 88
- Frame SCF Ass’y Parts List 89
- 6-12. Cassette SCF Ass’y 91
- Cassette SCF Ass’y Parts List 92
- 7. Electrical Parts Lists 93
- Main Engine PBA 94
- 7-2. Main Controller PBA 97
- Main Controller PBA 98
- 7-3. FLASH MEMORY PBA 100
- 7-4. PTL PBA 100
- 7-5. CASSETTE PBA 100
- 7-6. POSTSCRIPT PBA 100
- 7-7. DISP-PANEL PBA 101
- 7-8. DISP-LCD PBA 101
- 7-9. TONER PBA 101
- Samsung Electronics7-10 102
- NETWORK CARD PBA(100BASE) 103
- JC41-00011A PCB 1 PCB 104
- 8-1 WIRING DIAGRAM 105
- ML7300 ENGINE BLOCK DIAGRAM 106
- LCD Display Panel 107
- Engine Controller B’d 107
- Computer 107
- Samsung Electronics8-4 108
- Samsung Electronics 9-1 109
- 9-2. Cassette Sensor Board 110
- Samsung Electronics 9-3 111
- 9-4. Panel & LCD Board 112
- Samsung Electronics 9-5 113
- Samsung Electronics9-6 114
- 9-7. Infrared Adapor Board 115
- 9-8. Flash SIMM Board 116
- 9-9. Postscript Board 116
- 9-10. Local Talk 117
- 9-11. Serial/IrDA Board 118
- 10-1. Introduction 119
- 10-2. Board Description 120
- Service Part : JC92-01119A 120
- Product Information 121
- Samsung Electronics 10-3 121
- Samsung Electronics10-4 122
- Power Error 123
- System Error 124
- Network Error 125
- PHY Chip Error 126
- Shared Memory Interface Error 127
- Samsung Electronics10-10 128
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