Brother HL-2250DN - Page 6

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Confidential
9.16 Laser Unit ......................................................................................................................... 3-45
9.17 Wireless LAN PCB ASSY (Wireless network model only) ................................................ 3-47
9.18 Pick-up Roller Holder ASSY ............................................................................................. 3-48
9.19 Rubber Foot ...................................................................................................................... 3-49
9.20 Main PCB ASSY ............................................................................................................... 3-50
9.21 T1 Clutch ASSY, REG Clutch ASSY ................................................................................ 3-51
9.22 Main Frame L ASSY ......................................................................................................... 3-53
9.23 Develop Drive Sub ASSY, Develop Gear Joint/52 ........................................................... 3-55
9.24 Motor Drive Sub ASSY, Main Motor ................................................................................. 3-57
9.25 Paper Eject Sensor PCB ASSY ........................................................................................ 3-59
9.26 Fuser Gear 28/34 .............................................................................................................. 3-61
CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS,
REQUIRED AFTER PARTS REPLACEMENT .............................. 4-1
1. IF YOU REPLACE THE MAIN PCB ASSY ................................................................................. 4-1
1.1 Rewriting the Firmware (Main Program) ............................................................................. 4-2
1.1.1 Checking firmware version ..................................................................................... 4-2
1.1.2 Rewriting the firmware ............................................................................................ 4-2
1.2 Setting the default paper size ............................................................................................. 4-3
1.3 Setting the serial number .................................................................................................... 4-4
1.4 Inputting the adjusted value of the laser unit ...................................................................... 4-6
2. IF YOU REPLACE THE LASER UNIT ...................................................................................... 4-10
2.1 Inputting the adjusted value of the laser unit .................................................................... 4-10
3. IF YOU REPLACE THE LOW VOLTAGE POWER SUPPLY PCB ASSY ............................... 4-14
3.1 Reset of Irregular Power Supply Detection Counter ......................................................... 4-14
CHAPTER 5 SERVICE FUNCTIONS .................................................................. 5-1
1. MAINTENANCE MODE ............................................................................................................... 5-2
1.1 How to Enter the End User-accessible Maintenance Mode ............................................... 5-2
1.2 How to Enter the Service Personnel-accessible Maintenance Mode ................................. 5-2
1.3 List of Maintenance Mode Functions .................................................................................. 5-3
1.4 Detailed Description of Maintenance-mode Functions ....................................................... 5-5
2. PRINTER SETTINGS ................................................................................................................ 5-13
2.1 Printout of Printer Settings ................................................................................................ 5-13
3. OTHER SERVICE FUNCTIONS ................................................................................................ 5-20
3.1 Reprint Function ............................................................................................................... 5-20
3.2 Job Cancel Function ......................................................................................................... 5-20
3.3 Wireless LAN setting (Wireless Network Model only) ....................................................... 5-21
3.4 Wireless Connecting Diagnostic Report Print (Wireless Network Model only) ................. 5-21
3.5 Continue Mode/Stop Mode settings of Toner Cartridge ................................................... 5-22
3.6 Drum Cleaning Function ................................................................................................... 5-22