Samsung ML-6050 Specifications Page 93
- Page / 140
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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5-28 Samsung Electronics
Troubleshooting
Error code 2-020
Fault
Description
1. Paper is not exited from the cassette.
2. Paper is stopped just after cassette, before feed sensor, or on the feed sensor.
Jam 0
Model ML-xxxx
Check
Engine board
Cause
1. Open the printer cover, and close it. Then check :
1-1. If the paper does not feed into the printer, the feed clutch driving circuit in the engine board may
be defective.
1-2. If the paper feeds into the printer and ‘Jam 0’ occurs, the feed sensor OP1 on the engine board
may be defective.
2. Defective PLT-Knockup (12) (Refer to 9 on page 6-14.)
Solution
1. Check for the solenoid driving circuit using DCU diagnostic mode 06.
1) Check for 24V input on D1 cathode. If 24V is not present, check Q4. If they work normally, check
for 24V output from SMPS.
2) Measure the feed clutch resistance. Replace if not approximately 60 ohms.
3) Check Q4. if Q4 is OK, the collector and base should be 0V and 0.7V DC to GND, respectively.
2. Check for Feed sensor OP1 and related parts.
1) Replace Feed sensor actuator if defective.
2) When OP1 sensor is blocked, U6 (74HC245) pin#16 should be over 3.5V. When the sensor is
not blocked, the pin should be below 0.7V.
One side of R15 in OP1 transmitter should be 5V, and the other end 1.2V. If normal, check OP1
receiver. If not shorted, replace CPU.
3. Replace the cassette, if damaged.
Remark
Others
Download Service Manual And Resetter Printer at http://printer1.blogspot.com
- LASER PRINTER 1
- 8. Schematic Diagrams 2
- Engine Controller (2/6) 3
- Engine Controller (3/6) 4
- Engine Controller (4/6) 5
- Engine Controller (5/6) 6
- Engine Controller (6/6) 7
- 8-2. Controller Diagram(1/10) 8
- Controller Diagram(2/10) 9
- Controller Diagram(3/10) 10
- Controller Diagram(4/10) 11
- Controller Diagram(5/10) 12
- Controller Diagram(6/10) 13
- Controller Diagram(7/10) 14
- Controller Diagram(8/10) 15
- Controller Diagram(9/10) 16
- Controller Diagram(10/10) 17
- 8-4. Flash SIMM 18
- MP_PAPER 19
- MP_CLUTCH 19
- 8-7. PTL Diagram 20
- 7. Electrical Parts Lists 21
- 7-3. LED PANNEL Parts Lists 43
- 7-4. PTL Board Parts Lists 43
- Samsung Electronics 6-1 44
- 6-1. Main Exploded View 45
- Main Parts Lists 46
- 6-2. Cover Exploded View 47
- Cover Parts Lists 48
- 6-3. Frame Exploded View 49
- Frame Parts Lists 50
- Samsung Electronics 6-9 52
- 6-4. Fuser Exploded View 53
- Fuser Parts Lists 54
- 6-5. Motor Exploded View 55
- Motor Parts Lists 56
- 6-6. Pick-Up Exploded View 57
- Pick-Up Parts Lists 58
- 6-7. Cassette Exploded View 59
- Cassette Parts Lists 60
- QwikLaser6050 61
- Second Cassette Parts Lists 62
- Samsung Electronics 6-21 64
- 5. Troubleshooting 66
- Error code 1-020 67
- Error code 1-030 68
- Error code 1-040 69
- Error code 1-050 70
- Error code 1-051 71
- Error code 1-052 72
- Error code 1-060 73
- Error code 1-061 74
- Error code 1-062 75
- Error code 1-070 76
- Error code 1-080 77
- Error code 1-090 78
- Error code 1-090-1 79
- Error code 1-091 80
- Error code 1-093 81
- Error code 1-094 82
- Error code 1-095 83
- Error code 1-100 84
- Error code 1-110 85
- Error code 1-111 86
- Error code 1-120 87
- Error code 1-121 88
- Error code 1-130 89
- Samsung Electronics 5-25 90
- Engine board 90
- Error code 1-141 91
- Error code 2-010 92
- Error code 2-020 93
- Error code 2-030 94
- Error code 2-040 95
- Error code 2-050 96
- Error code 3-010 97
- Error code 3-011 98
- Error code 3-020 99
- Error code 3-030 100
- Error code 3-040/3-041 101
- Error code 3-050 102
- 5-38 Samsung Electronics 103
- Control board 103
- Insufficient printer memory 103
- Error code 3-080 104
- Error code 3-090 105
- Error code 3-100 106
- Error code 3-110 107
- Troubleshooting 108
- 4. Disassembly and Reassembly 110
- 4-2. Transfer Roller 111
- 4-3. Controller Board 112
- 4-4. Panel Board 113
- 4-5. Pickup Assembly 114
- 4-6. Main Cover 115
- 4-7. LSU 116
- 4-8. Exit Assembly 117
- 4-9. Drive Assembly and Fan 118
- 4-10. Fuser 119
- Disassembly and Reassembly 120
- Samsung Electronics 4-11 120
- Thermostat 120
- Samsung Electronics 121
- Samsung Electronics 4-13 122
- HV terminals 122
- Paper empty sennsor 123
- Samsung Electronics 4-15 124
- 4-12. ROM 126
- 2. Specifications 128
- Specifications 129
- 3. Reference Information 130
- 3-2. Chip Replacement (SMD) 131
- REMOVING 132
- INSTALLING 132
- 3-2-5. Chip VRs, Chip Trimmer 133
- Capacitors, Diode and Tr 133
- 3-2-6. Chip ICs 133
- LBP DIAGNOSTIC CONTROL UNIT 134
- 3-4. DCU Control 135
- 3-4-3. DCU Error Status Code 136
- 3-4-4. Error Solution 136
- Reference Information 137
- 1. Precautions 138
- Precautions 139
- Printed in Korea 140
- P/N. JC68-00072A Rev.1.00 140
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