2.3.9 Reset circuit ........................................................................................................................ 2-5
2.3.10 Panel I/O ............................................................................................................................. 2-5
2.3.11 Video I/O ............................................................................................................................. 2-5
2.3.12 Power supply....................................................................................................................... 2-5
2.3.13 Wireless LAN ...................................................................................................................... 2-5
2.4
Power Supply ................................................................................................................... 2-6
3.
MECHANICS .............................................................................................................2-7
3.1
3.2
Overview of Gear ............................................................................................................. 2-8
3.3
Paper Transfer ................................................................................................................. 2-9
3.3.1 Paper supply ....................................................................................................................... 2-9
3.3.2 Paper registration.............................................................................................................. 2-11
3.3.3 Drum unit .......................................................................................................................... 2-11
3.3.4 Developing ........................................................................................................................ 2-12
3.3.5 Fixing stage....................................................................................................................... 2-13
3.3.6 Paper eject........................................................................................................................ 2-14
3.3.9 LT tray............................................................................................................................... 2-16
3.4
Toner Cartridge .............................................................................................................. 2-17
3.4.1 Toner life end mode .......................................................................................................... 2-17
3.5
Print Process.................................................................................................................. 2-21
3.5.1 Charging ........................................................................................................................... 2-21
3.5.2 Exposure stage ................................................................................................................. 2-21
3.5.3 Transfer............................................................................................................................. 2-22
3.6
Sensors .......................................................................................................................... 2-23
3.7
1.
CONSUMABLE PARTS.............................................................................................3-1
1.1
Toner Cartridge ................................................................................................................ 3-1
1.2
Drum Unit ......................................................................................................................... 3-7
2.
2.1
Periodical Replacement Parts ....................................................................................... 3-12
2.2
HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
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Confidential