Ricoh D072 Service Manual page 16

REPLACEMENT AND ADJUSTMENT
4. REPLACEMENT & ADJUSTMENT ............................................. 4-1
4.1 PRECAUTIONS ......................................................................................... 4-1
4.1.1 GENERAL......................................................................................... 4-1
4.1.2 LITHIUM BATTERIES....................................................................... 4-1
4.1.3 HALOGEN-FREE CABLE ................................................................. 4-1
4.2 SPECIAL TOOLS AND LUBRICANTS....................................................... 4-2
4.3 EXTERIOR COVERS AND OPERATION PANEL ..................................... 4-3
4.3.1 REAR COVER .................................................................................. 4-3
4.3.2 COPY TRAY ..................................................................................... 4-4
4.3.3 SCALE PLATE (D067 ONLY) ........................................................... 4-5
4.3.4 OPERATION PANEL AND UPPER COVERS .................................. 4-5
4.3.5 RIGHT DOOR ................................................................................... 4-6
4.3.6 BYPASS TRAY ................................................................................. 4-6
4.3.7 PLATEN COVER SENSOR .............................................................. 4-7
4.4 SCANNER UNIT ........................................................................................ 4-8
4.4.1 EXPOSURE GLASS ......................................................................... 4-8
4.4.2 LENS BLOCK ................................................................................... 4-9
4.4.3 EXPOSURE LAMP, LAMP STABILIZER BOARD .......................... 4-10
4.4.4 SCANNER MOTOR ........................................................................ 4-11
4.4.5 SCANNER HP SENSOR ................................................................ 4-12
4.4.6 SCANNER ALIGNMENT ADJUSTMENT........................................ 4-13
4.5 FUSING ................................................................................................... 4-15
4.5.1 FUSING UNIT ................................................................................. 4-15
4.5.2 EXIT SENSOR................................................................................ 4-16
4.5.3 HOT ROLLER STRIPPER PAWLS................................................. 4-17
4.5.4 HOT ROLLER AND FUSING LAMP ............................................... 4-18
4.5.5 THERMOSWITCHES AND THERMISTOR .................................... 4-19
4.5.6 PRESSURE ROLLER ..................................................................... 4-20
4.5.7 CHECKING THE NIP BAND ........................................................... 4-21
4.6 PCU AND QUENCHING LAMP ............................................................... 4-22
4.6.1 PCU ................................................................................................ 4-23
4.6.2 QUENCHING LAMP ....................................................................... 4-24
4.7 EXHAUST FAN AND MAIN MOTOR ....................................................... 4-25
D067/D068/D069/D072 iv SM