Samsung ML-1665 manuals

Samsung ML-1665 Service Manual (118 pages)

Brand: Samsung | Category: Multifunctionals | Size: 15.51 MB |

English

Table of contents

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 Specications

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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