M052/M053/M054 iv SM
4.4.7 TOUCH PANEL POSITION ADJUSTMENT ................................... 4-20
4.4.8 OUTPUT TRAY (M052/M053 MODELS ONLY) ............................. 4-21
4.5SCANNER UNIT ...................................................................................... 4-22
4.5.1 SCANNER FRONT COVER ........................................................... 4-22
4.5.2 SCANNER RIGHT AND LEFT COVERS ........................................ 4-23
Scanner Right Cover .......................................................................... 4-23
Scanner Left Cover ............................................................................ 4-23
4.5.3 SCANNER REAR COVER .............................................................. 4-24
4.5.4 EXPOSURE GLASS ....................................................................... 4-25
When reassembling the ARDF exposure glass .................................. 4-25
4.5.5 LED BOARD ................................................................................... 4-26
4.5.6 SCANNER MOTOR ........................................................................ 4-29
4.5.7 SENSOR BOARD UNIT (SBU) ....................................................... 4-30
When reassembling ........................................................................... 4-30
4.5.8 LED DRIVE BOARD ....................................................................... 4-31
4.5.9 SCANNER HP SENSOR ................................................................ 4-32
4.5.10 COVER SENSOR ....................................................................... 4-33
4.5.11 FRONT SCANNER WIRE........................................................... 4-34
Reinstalling the Front Scanner Wire ................................................... 4-35
4.5.12 REAR SCANNER WIRE ............................................................. 4-38
Reinstalling the Rear Scanner Wire ................................................... 4-39
4.6LASER OPTICS ....................................................................................... 4-40
4.6.1 CAUTION DECAL LOCATIONS ..................................................... 4-40
4.6.2 SAFETY SWITCHES FOR LASER UNIT ....................................... 4-41
4.6.3 LASER UNIT ................................................................................... 4-41
Preparation before Removing the Laser Unit ..................................... 4-41
Removing the Laser Unit for All Models ............................................. 4-42
4.6.4 POLYGON MOTOR ........................................................................ 4-43
4.6.5 LASER SYNCHRONIZATION DETECTOR .................................... 4-44
4.7PAPER TRANSFER ................................................................................ 4-45
4.7.1 TRANSFER ROLLER ..................................................................... 4-45
4.8DRIVE SECTION ..................................................................................... 4-46
4.8.1 GEARBOX ...................................................................................... 4-46
4.8.2 MAIN MOTOR ................................................................................ 4-47
4.8.3 DUPLEX MOTOR ........................................................................... 4-48
4.8.4 BY-PASS FEED CLUTCH .............................................................. 4-49
4.8.5 RELAY CLUTCH ............................................................................ 4-49
4.8.6 PAPER FEED CLUTCH .................................................................. 4-50
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