Samsung ML-2151N Especificaciones descargar pdf (Pagina 103)

7-18

TROUBLESHOOTING

Samsung Electronics

Service Manual

7.3.10 Vertical Line Getting Curved

• Description

When printing, vertical line gets curved.

Check and Cause Solution

1. If the supply of +24v is unstable in the Main Control board

linking with LSU, check drive by EDC Mode: LSU Check.

2. Chect the Deve PBA in the Toner Cartridge.

1. Replace LSU.

2. Replace theToner Joint PBA.

2. Replace the MainPBA.

1 2 ... 98 99 100 101 102 103 104 105 106 107 108 ... 171 172

LASER PRINTER 1
ML-2151N 1
ML-2152W 1
1. Precautions 2
1.2 Caution for safety 3
Precautions 4
1.3 ESD Precautions 5
2. Reference Information 6
2.1 Tool for Troubleshooting 6
2.3 Selecting a Location 8
2.4.1 A4 5% Patten 9
2.4.2 A4 2% Patten 10
2.4.3 A4 IDC 5% Patten 11
2.6 Wireless LAN 12
REFERENCE INFORMATION 13
3. Specifications 14
3.3 Electrical Specification 15
3.2 Controller Specification 15
3.5 Environmental Condition 16
Specifications 17
4. Summary of Product 18
4.1.2 Rear View 19
4.1.3 Control Panel 20
4.1.3.2 Buttons 21
Accessing Control Panel Menus 22
Summary of Product 23
4.1.3.5 Special Features 24
4.2 System Layout 26
4.2.1 Feeding 27
4.2.2 Transfer 28
4.2.3 Driver Ass'y 28
4.2.4 Fuser 28
4.2.6 Toner Cartridge 29
4.3 Main Board 30
4.3.1 Controller 32
4.3.2 Memory part 33
4.3.3 RESET Circuit 33
4.3.4 ClOCK Circuit 33
4.3.5 INTERFACE Part 33
4.3.6 Sensor input circuit 34
Exit Sensor 35
HVPS FuserMain PBA 35
>>AC Input 37
>>Rated Power Output 37
>>Consumption Power 37
>>Power Switch : Use 37
4.4.3 Fuser AC Power Control 38
4.5 Engine F/W 39
4.5.4 Fusing 40
4.5.5 LSU 40
5. Disassembly and Reassembly 41
Open Cover 42
Transfer Roller 42
MPF Ass'y 43
Tray Link 43
Knock Up Plate Ass'y 43
Cassette 44
RH Cover 44
5.6 Control Board 45
Main Drive 46
Ass'y 46
MP Solenoid 47
Main Solenoid 47
MP Empty 47
Control Board 47
Rear Cover 48
LH Cover 48
5.11 DC Fan 49
5.12 Rear Cover 49
Top Cover 50
Key Panel 50
Cover Open 50
Micro Switch PBA 51
Sensor Cap 51
Inner Cover 51
Fuser Ass'y 52
Gear Bracket 52
Fuser Upper Unit 52
Pressure Roller 53
Exit Motor 54
Exit Roller 55
Exit Gear 55
Exit Roller Rack 56
LSU Lower Cover 57
HV Small 57
Toner Sensor Board 57
PTL Upper 58
Gear Cap 58
REGI Ass'y 58
5.22 MP Pick Up Ass’y 59
Roller Ass'y 61
5.24 Pick Up Unit 62
Engine Shield 64
Engine Board 65
LH Guide 65
(Duplex) 65
RH Guide 65
6. Alignment and Adjustments 66
ALIGNMENT & ADJUSTMENTS 68
Service 68
6.1.2.5 Sensor Test 71
6.2 Paper Path 73
• Simplex 74
• Duplex 74
6.2.1 Clearing Paper Jams 75
• In the Optional Tray2 76
• In the Multi-Purpose Tray 76
6.2.1.5 In the Duplex Area 79
• Duplex Jam 1 79
• Duplex Jam 2 79
6.3 Sample Pattern 80
6.3.3.1 Remaining Toner: xx% 81
6.3.3.2 OPC Count: XXXXXX 81
6.3.3.4 Supplier: SAMSUNG 81
솔레노이드솔레노이드 84
7. Troubleshooting 86
7.2.1 Wrong Print Position 93
7.2.2 JAM 0 93
7.2.4 JAM 2 94
7.2.3 JAM 1 94
7.2.6 JAM Duplex 2 95
7.2.5 JAM Duplex 1 95
7.2.7 Multi-Feeding 96
7.3.1 Fuser Error 98
7.3.2 LSU Error 98
7.3.4 Paper Empty 99
7.3.6 Cover Open 100
TROUBLESHOOTING 101
Samsung Electronics 101
Service Manual 101
7.3.9 No Power 102
7.4 Toner Cartridge Service 104
7.4.4.1 Invalid Toner 105
7.4.4.2 Low Toner 105
7.4.4.3 Replace Cartridge 105
Digital Printer 106
7.5.3 Abnormal Printing 111
7.5.4 SPOOL Error 112
8.1 Main Assembly 115
Main Assembly Parts List(1/2) 116
Main Assembly Parts List(2/2) 117
8.2 Base-Houshing Assembly 118
SA : Service Available 119
8.3 Frame Assembly (1) 120
Frame Assembly (2) 121
Frame Assembly 122
Parts List(1/3) 122
Parts List(2/3) 123
Parts List(3/3) 124
8.4 Fuser Assembly 125
8.5 Main Driver Assembly 128
8.6 Exit Driver Assembly 129
8.7 Regi Assembly 130
8.8 SMPS Assembly 131
SMPS Unit Parts List 132
8.9 Cassette Assembly 133
Cassette Assembly Parts List 134
8.10 SCF Assembly 135
SCF Assembly Parts List(1/2) 136
SCF Assembly Parts List(2/2) 137
9. Block Diagram 138
B LOCK DIAGRAM 139
10. Connection Diagram 140
CONNECTION DIAGRAM 141
11. Schematic Diagrams 142
Main Circuit Diagram(2/9) 143
Main Circuit Diagram(3/9) 144
Main Circuit Diagram(4/9) 145
Main Circuit Diagram(5/9) 146
Main Circuit Diagram(6/9) 147
Main Circuit Diagram(7/90) 148
Main Circuit Diagram(8/9) 149
Main Circuit Diagram(9/9) 150
Schematic Diagrams 151
HVPS Circuit Diagram(220V) 152
SMPS Circuit Diagram(220V) 154
SCF PBA Circuit Diagram(2/2) 162
RAM DIMM Circuit Diagram(2/2) 164
11-7 PS3 ROM Circuit Diagram 166
11-12 OPC PBA Circuit Diagram 169
Printed in Korea 171

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Samsung ML-2151N Especificaciones Pagina 103

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