Brother HL-2290 Service Manual page 6

9.3 Outer chute ASSY ............................................................................................................ 3-19
9.4 Front cover ASSY / Support flap ....................................................................................... 3-20
9.5 Side cover R ..................................................................................................................... 3-23
9.6 Fuser cover ....................................................................................................................... 3-24
9.7 Inner chute ASSY ............................................................................................................. 3-25
9.8 Side cover L ...................................................................................................................... 3-26
9.9 Top cover ASSY ............................................................................................................... 3-27
9.10 Fuser unit .......................................................................................................................... 3-31
9.11 Low-voltage power supply PCB ASSY ............................................................................. 3-33
9.12 New toner sensor PCB ASSY ........................................................................................... 3-35
9.13 HVPS flat cable / High-voltage power supply PCB ASSY ................................................ 3-36
9.14 Fan ................................................................................................................................... 3-38
9.15 Relay PCB ASSY (For toner box models and MP models) /
Toner box new PCB ASSY (For models with toner box) .................................................. 3-39
9.16 Laser unit flat cable / Laser unit ........................................................................................ 3-41
9.17 Filter .................................................................................................................................. 3-43
9.18 Wireless LAN PCB (Only for wireless network models) ................................................... 3-44
9.19 Roller holder ASSY ........................................................................................................... 3-45
9.20 Main PCB ASSY ............................................................................................................... 3-46
9.21 T1 clutch / Registration clutch ........................................................................................... 3-47
9.22 Frame L unit ...................................................................................................................... 3-50
9.23 Paper feed motor / Paper feed motor flat cable ................................................................ 3-53
9.24 Fuser gear 64R/36R ......................................................................................................... 3-55
9.25 Toner sensor PCB ASSY (Only for models with Toner box) ............................................ 3-56
9.26 Front cover sensor ............................................................................................................ 3-57
9.27 Eject sensor PCB ASSY ................................................................................................... 3-58
9.28 Registration front/rear actuator holder ASSY ................................................................... 3-60
9.29 Paper feed roller ASSY / Paper feed sensor PCB ASSY ................................................. 3-63
CHAPTER 4 ADJUSTING AND UPDATING SETTINGS AS
REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB ASSY ................................................................................. 4-1
1.1 Setting by Spec .................................................................................................................... 4-2
1.2 Installing Firmware (Sub firmware and main firmware) ...................................................... 4-4
1.2.1 Checking firmware version ..................................................................................... 4-4
1.2.2 Installing firmware .................................................................................................. 4-5
1.3 Setting Serial Number and Entering Adjusted Value of Laser Unit ..................................... 4-6
2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY ................................. 4-9
2.1 Reset Irregular Power Supply Detection Counter of
the Low-voltage Power Supply PCB ................................................................................... 4-9
3. IF YOU REPLACE THE LASER UNIT ...................................................................................... 4-10
3.1 Entering Adjusted Value of Laser Unit .............................................................................. 4-11
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