Brother MFC-9420CN Service Manual page 88

5.1.19 Center Cover ......................................................................................................5-40
5.1.20 Right Side Cover PU ..........................................................................................5-40
5.1.21 Side Cover LF ....................................................................................................5-41
5.1.22 Interlock Switch PU (Front) ................................................................................5-41
5.1.23 Waste Toner Auger PU ......................................................................................5-42
5.1.24 Waste Toner Agitator PU ...................................................................................5-42
5.1.25 Erase Lamp PU ..................................................................................................5-43
5.1.26 Marker Sensor....................................................................................................5-44
5.1.27 Toner Density Sensor PU ..................................................................................5-44
5.1.28 Cleaning Roller Clutch PU .................................................................................5-45
5.1.29 Main Motor PU ...................................................................................................5-45
5.1.30 Fuser Clutch PU .................................................................................................5-46
5.1.31 TR Cam Clutch...................................................................................................5-47
5.1.32 Registration Clutch PU.......................................................................................5-47
5.1.33 Paper Feed Clutch PU .......................................................................................5-48
5.1.34 Developer Motor PU...........................................................................................5-48
5.1.35 Waste Toner Holder ASSY PU ..........................................................................5-49
5.1.36 Developer Clutch PU (DCLY/DCLM/DCLC/DCLK)............................................5-49
5.1.37 Developer Gear PU / Developer Drive ASSY PU ..............................................5-50
5.1.38 OPC Drive Gear ASSY PU ................................................................................5-50
5.1.39 Main Drive Gear ASSY PU ................................................................................5-51
5.1.40 Waste Toner Feeder PU ....................................................................................5-52
5.1.41 Toner Sensor PU (TPD).....................................................................................5-53
5.1.42 Right Toner Guide PU........................................................................................5-54
5.1.43 Laser ASSY PU / Laser Unit Fan ASSY PU ......................................................5-54
5.1.44 Inner Front Cover PU / Front Cover PU .............................................................5-56
5.1.45 Right Tray Guide PU ..........................................................................................5-56
5.1.46 Engine Control Board PU...................................................................................5-57
5.1.47 Power Supply Fan PU / Interlock Switch PU (Top, Paper Exit) /
Power Supply Fan Duct PU...............................................................................5-58
5.1.48 Speaker ..............................................................................................................5-59
5.1.49 Scanner Door Sensor.........................................................................................5-59
Confidential