Samsung ML-1665 Service Manual Page 72
- Page / 118
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
- Service Manual 1
- Contents 3
- 1. Precautions 6
- 1.2 Caution for safety 7
- 1.2.3 Handling precautions 8
- 1.3 ESD precautions 10
- 2. Product spec and feature 11
- 2.1.2 Specications 12
- 2.1.2.3 Paper Handling 13
- 2.1.2.4 Consumables 14
- 2.1.2.5 Maintenanace part 14
- 2.1.2.7 Environment 15
- 2.1.2.9 Options 16
- 2.1.3 Model Comparison Table 17
- 2.2 System Overview 18
- 2.2.2 Rear View 19
- 2.2.3 System Layout 20
- 2.2.3.1 Feeding Part 21
- 2.2.3.2 Transfer Roller 22
- 2.2.3.3 Driver Assy 22
- 2.2.3.4 Fuser 23
- 2.2.3.6 Toner Cartridge 26
- (a) Asic(Jupiter4e) 28
- (b) Memory 28
- (c) Sensor Input Circuit 29
- Main board 30
- ■ HVPS Board 31
- ■ SMPS Board 32
- 2.2.5.1 Feeding 33
- 2.2.5.2 Transfer 33
- 2.2.5.3 Fusing 34
- 2.2.5.4 LSU 34
- 2.2.6 S/W Descriptions 35
- . GDI(only SCX-4824FN) 36
- & PCL6 (PCL XL) 36
- 3. Disassembly and Reassembly 38
- 3.3 Cover 40
- Top cover 41
- Front cover 41
- 3.4 Main PBA 42
- 3.5 SMPS/HVPS board 43
- 3.6 Fuser unit 44
- 3.8 Drive unit 46
- 3.9 Step motor 47
- 3.10 Pick up roller 48
- 4.1 Alignment and Adjustments 49
- 4.1.3 JAM Removal 51
- 4.1.4 Printing a report 53
- ■ Demo Page 54
- ■ Supplies Information Report 55
- 4.1.6 Firmware upgrade 57
- 4.2 Troubleshooting 60
- 4.2.1.1 Basic Check List 61
- 4.2.1.2 Initial Inspection 62
- 4.2.2 Bad discharge 63
- 2) JAM 1 64
- 3) Multi-Feeding 65
- 4.2.3 Malfunction 67
- 3) Defective motor operation 69
- 4) No Power 70
- 4.2.4 Bad image 72
- 2) Vertical White Line 73
- 3) Horizontal Black Band 74
- 4) Black/White Spot 75
- 5) Light Image 76
- 6) Dark Image or a Black Page 77
- 7) Background 78
- 8) Ghost (1) 79
- 9) Ghost (2) 80
- 10) Ghost (3) 81
- 11) Ghost (4) 82
- 1. Toner leakage due to 83
- Replace the toner cartridge 83
- 13) Stains on Back of Page 84
- Bad ground contacts in 85
- OPC and/or developer 85
- Remove contamination of the 85
- • Code:A3-3112 87
- • Code:C1-1110 90
- • Code:C1-1120 91
- • Code:C1-1130 92
- • Code:C1-1411 94
- • Code:C1-1512 95
- • Code:M1-1113 97
- • Code:M2-1211 98
- • Code:S2-4110 99
- • Code:U1-1211 100
- • Error message: 100
- • Symptom/Cause: 100
- • Trouble Shooting Method: 101
- • Code:U1-2121 103
- • Code:U2-1112 106
- • Code:U2-1114 107
- 5. System Diagram 108
- 5.2 Connection Diagram 109
- 6. Reference Information 110
- 6.2.1 Acronyms 111
- 6.2.2 Service Parts 113
- ACRONYM EXPLANATION 114
- 6.4 Selecting a location 118
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