Brother HL-4200CN Service Manual page 298

CHAPTER VI DIAGRAMS .............................................................. VI-1
1.PREFACE .......................................................................................................VI-1
1.1 How to Use the BSD............................................................................................................VI-1
1.2 Explanations of Symbols .....................................................................................................VI-1
1.3 Signal Name/Other description............................................................................................VI-4
1.4 DC Voltage...........................................................................................................................VI-4
1.5 Input/Output Test .................................................................................................................VI-4
2. BSD (BLOCK SCHEMATIC DIAGRAM)
2.1 Standby Power
2.1.1 AC power on and DC distribution ..............................................................................VI-5
2.1.2 Monitoring..................................................................................................................VI-6
2.2 Mode Selection
2.2.1 Control panel .............................................................................................................VI-7
2.3 Machine Run Control
2.3.1 Machine self test........................................................................................................VI-8
2.3.2 CRUM and billing.......................................................................................................VI-9
2.3.3 Monitoring................................................................................................................VI-10
2.4 Start Print Power
2.4.1 Main drive control ....................................................................................................VI-11
2.5 OPTICS (Scanner)
2.5.1 Laser scanning image and control ..........................................................................VI-12
2.5.2 Monitoring................................................................................................................VI-13
2.6 Paper Supplying
2.6.1 Tray1 paper stacking...............................................................................................VI-14
2.6.2A Tray2 paper stacking (option feeder single tray) ..................................................VI-15
2.6.2B Tray2 paper stacking (option feeder)....................................................................VI-16
2.6.3 Tray3 paper stacking (option feeder) ......................................................................VI-17
2.6.4 Monitoring................................................................................................................VI-18
2.7 Paper Transportation
2.7.1 Tray1 paper feeding ................................................................................................VI-19
2.7.2 MSI paper feeding ...................................................................................................VI-20
2.7.3A Tray2 paper feeding (option feeder single tray)....................................................VI-21
2.7.3B Tray2 paper feeding (option feeder) .....................................................................VI-22
2.7.4 Tray3 paper feeding ................................................................................................VI-23
2.7.5A Feeder drive control (option feeder single tray) ....................................................VI-24
2.7.5B Feeder drive control (option feeder) .....................................................................VI-25
2.7.6 Registration .............................................................................................................VI-26
2.7.7 Monitoring................................................................................................................VI-27
2.8 XEROGRAPHICS
2.8.1 Charging and exposure ...........................................................................................VI-28
2.8.2 Development ...........................................................................................................VI-29
2.8.3 Toner cartridge set ..................................................................................................VI-30
2.8.4 Toner dispense control............................................................................................VI-31
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