Ricoh D131 Service Manual page 14

4.11.15 BY-PASS SEPARATION ROLLER PRESSURE ADJUSTMENT
4-118
4.11.16 REGISTRATION SENSOR ..................................................... 4-119
4.11.17 REGISTRATION AND BY-PASS UNIT REMOVAL ................ 4-120
4.12 PCBS AND HDD .............................................................................. 4-122
4.12.1 CNT BOARD (CONTROLLER BOARD) ................................... 4-122
Reinstallation of CNT Board ............................................................. 4-125
4.12.2 NVRAM ..................................................................................... 4-125
NVRAM on the BCU ......................................................................... 4-125
NVRAM on the Controller ................................................................. 4-126
4.12.3 IPU ............................................................................................ 4-127
4.12.4 HDD .......................................................................................... 4-128
Reinstallation .................................................................................... 4-129
4.12.5 CTL-PSU .................................................................................. 4-130
4.12.6 BCU .......................................................................................... 4-131
Replace the BCU.............................................................................. 4-132
4.12.7 CNB .......................................................................................... 4-132
4.12.8 PFB ........................................................................................... 4-133
4.12.9 DRB .......................................................................................... 4-134
4.12.10 PSU ........................................................................................ 4-135
Reinstallation of PSU ....................................................................... 4-135
4.13 ADF .................................................................................................. 4-136
4.13.1 ADF COVERS .......................................................................... 4-136
4.13.2 FEED UNIT ............................................................................... 4-137
4.13.3 FEED BELT AND PICK-UP ROLLER ....................................... 4-138
4.13.4 SEPARATION ROLLER ........................................................... 4-139
4.13.5 REGISTRATION SENSOR ....................................................... 4-140
4.13.6 ADF CONTROL BOARD .......................................................... 4-141
4.13.7 ORIGINAL WIDTH, INTERVAL, SEPARATION AND SKEW
CORRECTION SENSORS .................................................................... 4-142
4.13.8 ORIGINAL LENGTH SENSORS ............................................... 4-143
4.13.9 DF POSITION AND APS SENSORS ........................................ 4-144
4.13.10 OTHER ADF SENSORS......................................................... 4-145
4.13.11 BOTTOM PLATE LIFT MOTOR ............................................. 4-146
4.13.12 FEED MOTOR ........................................................................ 4-146
4.13.13 EXIT MOTOR AND TRANSPORT MOTOR............................ 4-147
4.13.14 PICK-UP ROLLER MOTOR AND HP SENSOR ..................... 4-148
4.13.15 CIS UNIT ................................................................................ 4-149
D131/D132/D133 x SM