Brother HL-8050N Service Manual page 6

TABLE OF CONTENTS
3.14 Fan Main ........................................................................................................................ 4-31
3.15 Chute Transfer ............................................................................................................... 4-32
3.16 Lever Fuser LH/Lever Fuser RH.................................................................................... 4-33
3.17 150 Feeder ASSY .......................................................................................................... 4-34
3.18 550 Feeder ASSY .......................................................................................................... 4-41
3.19 Sensor Low Paper/Actuator/Plate CST Lock/Stopper Tray R/ Stopper Tray L ............. 4-46
3.20 Guide Tray Right ............................................................................................................ 4-47
3.21 Guide Tray Left .............................................................................................................. 4-47
3.22 Duct Front/Fan SUB....................................................................................................... 4-48
3.23 ROS ASSY..................................................................................................................... 4-49
3.24 Shield Plate ROS ........................................................................................................... 4-50
3.25 Main Motor ..................................................................................................................... 4-50
3.26 Guide CRU Left.............................................................................................................. 4-52
3.27 Guide ASSY CRU R ...................................................................................................... 4-54
3.28 Power Switch ................................................................................................................. 4-55
3.29 Interlock SW Rear.......................................................................................................... 4-55
3.30 Gear ASSY Housing ...................................................................................................... 4-56
3.31 Gear ASSY Plate/Gear 9 ............................................................................................... 4-57
3.32 PWBA Exit Motor ........................................................................................................... 4-58
3.33 LVPS .............................................................................................................................. 4-59
3.34 HVPS/MCU, FFC ASSY ESS ........................................................................................ 4-60
3.35 PWBA ESS .................................................................................................................... 4-61
4. PACKING ................................................................................................................4-62
5. GUIDELINES FOR LEAD FREE SOLDER..............................................................4-63
6. HARNESS ROUTING..............................................................................................4-66
CHAPTER 5 PERIODIC MAINTENANCE............................................... 5-1
1. REPALACING THE TONER CARTRIDGE (TN-1700) ..............................................5-1
1.1 Toner Cartridge Handling Precautions ............................................................................ 5-1
1.2 Replacing the Toner Cartridge......................................................................................... 5-2
2. REPALACING THE FUSER UNIT & TRANSFER ROLL CARTRIDGE (FP-8000) ...5-4
2.1 Fuser Unit & Transfer Roll Cartridge Handling Precautions ............................................... 5-4
2.2 Replacing the Fuser Unit & Transfer Roll Cartridge ........................................................... 5-4
3. REPALACING THE FEED ROLLER ............................................................................5-9
3.1 Replacing the Feed Roller................................................................................................. 5-10
4. CLEANING THE PRINTER ........................................................................................5-13
4.1 Cleaning the Outside of the Printer ................................................................................... 5-13
4.2 Cleaning the Interior.......................................................................................................... 5-14
4.3 Cleaning the Feeder Roller ............................................................................................... 5-14
4.4 If the Printer Will Not Be Used for a Long Time ................................................................ 5-15
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