Ricoh B230 Service Manual page 5

3.4.1 FRONT DOOR........................................................................... 3-14
3.4.2 LEFT COVER ............................................................................ 3-15
3.4.3 REAR COVER ........................................................................... 3-15
3.4.4 RIGHT REAR COVER ............................................................... 3-16
3.4.5 OPERATION PANEL ................................................................. 3-16
3.4.6 DUST FILTER............................................................................ 3-17
3.5 SCANNER UNIT ................................................................................. 3-18
3.5.1 EXPOSURE GLASS .................................................................. 3-18
3.5.2 ORIGINAL LENGTH/WIDTH SENSORS ................................... 3-19
3.5.3 EXPOSURE LAMP .................................................................... 3-19
3.5.4 SCANNER MOTOR ................................................................... 3-21
3.5.5 SENSOR BOARD UNIT (SBU) .................................................. 3-22
3.5.6 EXPOSURE LAMP STABILIZER............................................... 3-23
3.5.7 FRONT SCANNER WIRE.......................................................... 3-23
3.5.8 REAR SCANNER WIRE ............................................................ 3-26
3.5.9 TOUCH PANEL POSITION ADJUSTMENT .............................. 3-27
3.6 LASER OPTICS .................................................................................. 3-29
3.6.1 CAUTION DECAL LOCATION................................................... 3-29
3.6.2 LASER OPTICS HOUSING UNIT.............................................. 3-29
3.6.3 POLYGON MIRROR MOTOR ................................................... 3-34
3.7 IMAGE CREATION ............................................................................. 3-36
3.7.1 PCU ........................................................................................... 3-36
3.7.2 DRUM UNIT AND DEVELOPMENT UNIT ................................. 3-36
3.7.3 TONER COLLECTION BOTTLE................................................ 3-40
3.7.4 TONER SUPPLY TUBE FAN..................................................... 3-41
3.7.5 TONER PUMP UNIT.................................................................. 3-41
3.7.6 TONER END SENSOR.............................................................. 3-47
3.8 IMAGE TRANSFER ............................................................................ 3-48
3.8.1 IMAGE TRANSFER BELT UNIT................................................ 3-48
3.8.2 IMAGE TRANSFER BELT CLEANING UNIT............................. 3-49
3.8.3 IMAGE TRANSFER BELT ......................................................... 3-50
3.9 PAPER TRANSFER............................................................................ 3-55
3.9.1 PAPER TRANSFER ROLLER UNIT.......................................... 3-55
3.9.2 PAPER TRANSFER UNIT ......................................................... 3-55
3.9.3 ID SENSOR BOARD ................................................................. 3-57
3.10 DRIVE UNIT.................................................................................... 3-60
B230/B237/D042 SM