Brother HL-6050DN Service Manual Page 201
- Page / 308
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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CHAPTER 5 PERIODIC MAINTENANCE
5-28
3.3 Cleaning the Scanner Window
When replacing the drum unit or toner cartridge with a new one, be sure to clean the scanner
window.
1) Turn off the printer power switch and unplug the printer power cord.
2) Press the cover release button, and then open the front cover of the printer.
3) Take out the drum unit assembly (drum unit with the toner cartridge).
!
CAUTION:
1) It is recommended to place the drum unit assembly on a piece of disposable paper or
cloth in case you accidentally spill or scatter toner.
2) Be careful not to inhale the toner.
3) After you have just used the printer, some parts inside the printer are extremely hot. When
you open the front cover of the printer, never touch the fuser and fixing roller.
4) Gently wipe the scanner window with a soft dry cloth.
Fig.5-51
5) Put the drum unit assembly in the printer.
6) Close the front cover.
7) Plug the printer power cord back in, and then turn the printer power switch back on.
!
CAUTION:
• Handle the drum unit carefully since it contains toner. If toner scatters and your hands or
cloths get dirty, immediately wipe or wash it off with cold water.
• Do not touch the scanner window with your fingers.
• Do not wipe the scanner window with isopropyl alcohol.
- SERVICE MANUAL 1
- PREFACE 3
- TABLE OF CONTENTS 10
- REGULATION 11
- SAFETY INFORMATION 13
- CHAPTER 1 GENERAL 15
- 1. FEATURES 15
- CHAPTER 1 GENERAL 16
- 2. OVERVIEW 17
- 3. SPECIFICATIONS 18
- 3.2 Functions 19
- 3.4 Network (NC-6100H) 21
- 3.5 Paper 22
- 3.6 Printable Area 25
- Physicalpage 27
- Printablearea 27
- Logicalpage 27
- TN4100/TN670 30
- 3 K 1 1 J A 31
- K 3 9 5 1 0 0 1 0 4 A 31
- 3 K 3 0 J 32
- K 3 9 H 0 0 0 1 9 9 A 32
- S A 0 0 0 0 0 0 1 32
- 1.1 Power Supply 33
- 1.2 Environment 33
- 2. UNPACKING 35
- 3. INSTALL THE PRINTER 36
- Fig. 2-2 37
- Fig. 2-3 37
- Fig. 2-7 39
- Fig. 2-8 39
- 4.1 Data LED Indications 40
- 1 and 999 COPIES 42
- 4.3 LCD Display 46
- RESTART PRINTER? 58
- Fig. 2-10 65
- Fig. 2-11 65
- Fig. 2-12 65
- 5.2 Functions 67
- Front cover ASSY 69
- RAM: 32MB 69
- 1.2 Main PCB Block Diagram 70
- 1.3 Main PCB 71
- Fig. 3-4 72
- Fig. 3-5 72
- Fig. 3-6 73
- MASK ROM 74
- (128/64Mbit) 74
- 48PIN TSOP1 74
- 1.3.6 Flash ROM 75
- 1.3.7 SDRAM 76
- Fig. 3-10 77
- Fig. 3-11 78
- Fig. 3-12 78
- 1.4 Engine PCB 82
- 1.5 Power Supply 83
- Fig. 3-20 84
- 2. MECHANICS 85
- 2.2 Paper Transfer 86
- Fig. 3-24 88
- Photosensitive drum 88
- Transfer roller 88
- Regist actuator rear 88
- 2.3 Sensors 90
- Fig. 3-30 92
- Fig. 3-31 92
- Relay PCB unit 92
- PE/PO sensor PCB ASSY 92
- 2.4 Drum Unit 94
- 2.5 Toner Cartridge 95
- 2.6 Print Process 97
- 1. SAFETY PRECAUTIONS 101
- 2. DISASSEMBLY FLOW 102
- 3. DISASSEMBLY PROCEDURE 103
- 3.3 Paper Tray 104
- 3.4 Access Cover 107
- 3.5 Network Board 107
- 3.6 DX Feed ASSY 108
- 3.7 Rear Cover ASSY 112
- 3.8 Top Cover ASSY 113
- 3.9 Side Cover L 115
- 3.10 Side Cover R 116
- 3.11 MP Paper Guide 1 ASSY 116
- 3.13 Exit Roller Unit 118
- 3.14 Laser Unit 120
- 3.15 Fixing Unit 121
- Fig. 4-42 124
- Fig. 4-46 126
- 3.17 Feed MP Unit 133
- 3.18 Fan Motor 80 ASSY 134
- 3.19 Filter 135
- 3.20 Engine PCB 135
- 3.21 Main PCB 136
- 3.22 Fan 40 136
- 3.23 LVPS 137
- Fig. 4-70 138
- LVPS cover 138
- LVPS PCB 138
- 3.24 Photo Interrupter 139
- 3.28 Main Motor 142
- 3.29 Developer Clutch 143
- 3.30 Develop Joint 143
- 3.31 Interlock SW ASSY 144
- 3.32 Relay PCB L ASSY 144
- 3.33 DEV Sensor ASSY 145
- 3.34 Toner LED PCB ASSY 145
- 3.36 Gear 24 146
- 3.37 Plate Motor ASSY 147
- 3.38 DX Sensor PCB 148
- 3.39 Ejection Solenoid ASSY 149
- 3.41 Toner Sensor PCB Unit 151
- 3.42 HVPS PCB ASSY 151
- 3.43 Relay PCB Unit 152
- 3.45 PE/PO Sensor PCB ASSY 153
- 3.46 Tray PE Actuator 154
- 3.47 RE Roller 155
- Fig. 4-104 156
- Fig. 4-106 157
- Fig. 4-108 158
- Fig. 4-110 159
- 4. PACKING 161
- 6. LUBRICATION 165
- Main motor ASSY 166
- Gear 18/48 166
- Fixing drive plate unit 166
- Gear 67 167
- Gear 24 167
- 7. HARNESS ROUTING 169
- Toner sensor PCB unit 170
- 1. CONSUMABLE PARTS 174
- Fig.5-7 176
- 1.2 Toner Cartridge 177
- Fig. 5-15 179
- Fig.5-16 181
- Fig.5-17 181
- Paper tray 181
- DX feed ASSY 181
- Fig.5-22 184
- Fig.5-23 184
- Fig.5-29 188
- Fig.5-32 190
- Separation plate ASSY 190
- Fig.5-35 192
- Drum unit 192
- Process unit cover ASSY 192
- Fig.5-36 193
- Fig.5-37 193
- 3. PERIODICAL CLEANING 199
- Fig.5-49 200
- Fig. 5-50 200
- Home position 200
- Fig.5-51 201
- Fig. 5-52 202
- 4. MTBF / MTTR 203
- 1. INTRODUCTION 204
- CHAPTER 6 TROUBLESHOOTING 205
- 1.3 Identify the Problem 206
- 2.1 Operator Calls 207
- ERROR ### 210
- SERVICE CALL 210
- 2.2 Service Calls 210
- 3. PAPER PROBLEMS 214
- Fig. 6-1 216
- Fig. 6-2 217
- Fig.6-4 217
- Fig. 6-10 220
- Fig. 6-11 220
- Fig. 6-12 220
- Fig.6-13 221
- Fig.6-14 221
- Fig.6-15 221
- Fig. 6-16 222
- Fig. 6-17 222
- Fig. 6-18 222
- Fig. 6-19 223
- Fig. 6-20 223
- 3.3 Paper Feeding Problems 225
- F-1 Double feeding 225
- F-2 Wrinkles or creases 225
- F-3 Page skew 225
- F-4 Curl or Wave 226
- 5. MALFUNCTIONS 230
- M-3 No paper supplied 231
- M-6 BD failure 232
- M-7 Scanner failure 233
- M-8 Fuser failure 233
- M-10 SXX error 234
- M-11 E41 error 234
- M-12 TR Release Motor Error 235
- 6. IMAGE DEFECTS 236
- I-1 Light 237
- I-2 Dark 238
- I-3 Completely blank 239
- I-4 All black 240
- I-9 White vertical streaks 244
- I-11 Faulty registration 245
- I-12 Poor fixing 245
- I-13 Image distortion 246
- I-14 Faint print 246
- I-15 White spots 247
- I-16 Black spots 249
- I-17 Black band 250
- I-18 Gray background 251
- I-19 Hollow print 251
- I-21 Horizontal lines 252
- I-22 Light rain 253
- I-23 Ghost 253
- I-24 Toner specks 254
- 7. INCORRECT PRINTOUT 256
- 8. NETWORK PROBLEM 259
- 8.2 Intermittent Problem 260
- 8.3 TCP/IP Troubleshooting 261
- 8.4 UNIX Troubleshooting 261
- Troubleshooting 263
- 8.13 DLC/LLC Troubleshooting 266
- 2.2 Function Table 269
- 3. SERVICE MENU MODE 274
- Machine on 279
- 5. PRINT SETTINGS 281
- Fig. 7-2 284
- 6.2 Diagnostics 285
- Fig. 7-5 286
- 6.3 Printer Information 287
- 7. NVRAM DEFAULT VALUE 288
- 9. NVRAM BACKUP 296
- APPENDIX 297
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