Brother T-8420B Service Manual Page 149
- Page / 353
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
4-68
3.25 Engine PCB
(1) Disconnect the connectors.
Fig. 4-119
(2) Remove the two bind B M4x12 Taptite screws, and then remove the engine PCB ASSY.
Fig. 4-120
Taptite, bind B M4x12
Engine PCB ASSY
Engine PCB ASSY
Toner sensor
(light reception) connector
Thermistor relay PCB connector
Main motor connector
Main PCB connector
MP tray PCB connector
FR solenoid connector
PF solenoid connector
Fan motor 60 unit connector
LT connector
Polygon motor connector
Fan motor 60 connector
LVPS connector
Cassette sensor PCB connector
Toner sensor
(light emission) connector
HVPS connector
Document cover sensor connector
DX sensor connector
Reversing release solenoid connector
- SERVICE MANUAL 1
- PREFACE 3
- TABLE OF CONTENTS 4
- APPENDIX 4 CIRCUIT DIAGRAMS 9
- REGULATION 10
- CLASS 1LASERP RODUCT 11
- APPAREIL Å LASER DE CLASSE 1 11
- LASER KLASSE 1 PRODUKT 11
- SAFETY INFORMATION 12
- CHAPTER 1 GENERAL 14
- 2. SPECIFICATIONS 16
- 2.3 Print Media 17
- 2.4 Copy 17
- 2.5 Fax 18
- 2.6 Scanner 19
- 2.7 Printer 19
- 2.8 Interfaces 20
- 2.9 Consumable Items 20
- 2.11 Computer Requirements 21
- 2.12 Paper 22
- CHAPTER 1 GENERAL 23
- 2.13 Printable Area 24
- TN7600/TN560 TN7300/TN530 28
- 3 A 1 1 J A 29
- A 3 9 5 1 0 0 1 0 4 A 29
- 3 A 3 0 J 30
- M 3 9 A 0 0 0 1 9 9 A 30
- 2 8 0 0 1 30
- 1.1 Power Supply 31
- 1.2 Environment 31
- 2. UNPACKING 32
- 3. INSTALL THE MACHINE 33
- Fig. 2-5 35
- Fig. 2-6 35
- Fig. 2-7 35
- Fig. 2-11 37
- Scanner lock lever 37
- 1. ELECTRONICS 57
- 1.2 Main PCB Block Diagram 58
- 1.3 Main PCB 59
- Fig. 3-5 60
- Fig. 3-6 60
- Fig. 3-7 61
- Fig. 3-8 61
- Fig. 3-9 62
- Fig. 3-14 64
- Fig. 3-15 64
- Fig. 3-16 65
- 1.4 Engine PCB 66
- 1.5 Power Supply 67
- Fig. 3-18 68
- 2. MECHANICS 69
- 2.2 Scanner Mechanism 70
- 2.3 Paper Transfer 71
- 2.4 Sensors 73
- 2.5 Drum Unit 78
- 2.6 Toner Cartridge 78
- 2.7 Print Process 78
- 1. SAFETY PRECAUTIONS 82
- 2. DISASSEMBLY FLOW 83
- 3. DISASSEMBLY PROCEDURE 84
- 3.3 Paper Tray 85
- 3.5 Access Cover / Battery 98
- 3.6 Driver PCB Access Cover 99
- 3.7 ADF Unit 100
- 3.8 Document Scanner 109
- 3.9 Panel Unit 114
- Taptite, bind B M4x12 117
- Rear cover C 117
- Fig. 4-62 117
- 3.13 Rear Cover L/R 120
- 3.14 Side Cover L/R 121
- 3.15 Joint Cover 122
- Fig. 4-77 125
- Support flap 125
- Support flap S 125
- (1) Release the link 126
- 3.18 Rear Cover Sensor 132
- 3.20 Fixing Unit 134
- 3.21 Laser Unit 143
- Fig. 4-113 144
- Shutter arm C 144
- Frame L 144
- 3.22 Main PCB 145
- 3.25 Engine PCB 149
- 3.28 Paper Feeder 152
- 3.29 Frame L / Drive Unit 159
- 3.31 Thermistor ASSY 164
- 3.33 Frame R 165
- 4. PACKING 167
- 6. SCREW TORQUE LIST 171
- 4. ADF Unit 172
- 5. Panel 172
- 7. LUBRICATION 173
- * EM3: Grease EM-D110 174
- 3 mm dia. ball 174
- Separation plate ASSY 175
- Paper feed chute 175
- Rubber holder 175
- 8. HARNESS ROUTING 176
- 1. CONSUMABLE PARTS 178
- 1.2 Toner Cartridge 180
- Fig.5-5 181
- Fig.5-6 181
- Fig.5-7 181
- (Pad holder ZL2 / Paper 184
- 2.1 Fixing Unit 185
- 2.2 Paper Feeding Kit 189
- 3. PERIODICAL CLEANING 191
- 3.3 Cleaning the Printer 192
- 3.4 Cleaning the Drum Unit 193
- Fig. 5-28 194
- Fig. 5-29 194
- 4. MTBF / MTTR 195
- 1. INTRODUCTION 196
- CHAPTER 6 TROUBLESHOOTING 197
- 1.3 Identify the Problem 198
- 2. ERROR MESSAGE 199
- 3. PAPER PROBLEMS 206
- 3.2 Original Jams 207
- 3.3 Paper Jams 208
- Fig. 6-6 209
- Fig. 6-7 209
- Fig. 6-8 209
- Fig. 6-9 210
- Fig. 6-10 210
- Fig. 6-11 211
- Fig. 6-12 211
- Fig. 6-13 211
- 3.4 Paper Feeding Problems 213
- F-1 Double feeding 213
- F-2 Wrinkles or creases 213
- F-3 Page skew 213
- F-4 Curl or Wave 214
- (Windows98/Me only) 216
- 5. MALFUNCTIONS 218
- M-3 Main motor failure 219
- M-4 No paper supplied 219
- M-7 Laser Unit failure 220
- M-9 Fixing Unit failure 221
- M-10 Main PCB failure 221
- M-12 Engine PCB error 222
- M-14 DIMM failure 222
- 8. IMAGE DEFECTS 229
- I-1 Light 230
- I-2 Dark 231
- I-3 Completely blank 232
- I-4 All black 233
- I-9 White vertical streaks 237
- I-11 Faulty registration 238
- I-12 Poor fixing 238
- I-13 Image distortion 239
- I-14 Faint print 239
- I-15 White spots 240
- I-16 Black spots 242
- I-17 Black band 243
- I-18 Gray background 244
- I-19 Hollow print 245
- I-21 Horizontal lines 246
- I-22 Light rain 246
- I-23 Ghost 247
- I-24 Toner specks 247
- 9. INCORRECT PRINTOUT 249
- 10. NETWORK PROBLEM 251
- 10.2 Intermittent Problem 252
- 10.3 TCP/IP Troubleshooting 253
- 10.4 UNIX Troubleshooting 253
- Within 2 seconds 259
- CHAPTER 7 MAINTENANCE MODE 260
- < IMPORTANT> 261
- Fig.7-3 264
- Fig.7-4 266
- Selector 1 Selector 8 268
- ↓ ↓ 268
- Fig.7-5 269
- Fig.7-6 270
- (MFC-8420/8820D/8820DN only) 274
- Fig.7-12 276
- Fig.7-13 277
- Fig.7-14 277
- WSW01 (Dial pulse setting) 293
- WSW07 (Dial tone setting 1) 299
- WSW08 (Dial tone setting 2) 300
- WSW11 (Busy tone setting) 303
- WSW13 (Modem setting) 305
- Selectors 8: CRP option 307
- WSW16 (Function setting 1) 308
- WSW17 (Function setting 2) 309
- WSW18 (Function setting 3) 310
- Selector 7: V. 34 mode 311
- * EP: Echo protection 312
- WSW27 (Function setting 5) 317
- WSW28 (Function setting 6) 318
- WSW29 (Function setting 7) 319
- WSW30 (Function setting 8) 319
- WSW31 (Function setting 9) 320
- WSW32 (Function setting 10) 321
- WSW33 (Function setting 11) 321
- WSW34 (Function setting 12) 322
- WSW35 (Function setting 13) 322
- WSW37 (Function setting 15) 324
- WSW39 (Function setting 17) 326
- WSW40 (Function setting 18) 327
- WSW41 (Function setting 19) 328
- WSW43 (Function setting 21) 330
- Selector 8: JPEG coding 330
- WSW47 (Function setting 22) 333
- Not used 334
- APPENDIX 4 CIRCUIT DIAGRAMS 335
Related products and manuals for Sewing machines Brother T-8420B
Sewing machines Brother T-8722C User Manual
(12 pages)
(12 pages)
(100 pages)
Sewing machines Brother BP2100 User Manual
(180 pages)
(180 pages)
Sewing machines Brother PE-200 User Manual
(270 pages)
(270 pages)
Sewing machines Brother XL-2600i User Manual
(68 pages)
(68 pages)
Sewing machines Brother 885-V51 User Manual
(92 pages)
(92 pages)
Sewing machines Brother PS-3700 User Manual
(58 pages)
(58 pages)
Sewing machines Brother BM3850 User Manual
(52 pages)
(52 pages)
(24 pages)© 2020, manymanuals.com. All rights reserved. | 0.234 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals