Ricoh B230 Service Manual page 22

3.13 Duplex Unit ..................................................................................... 3-95
3.13.1 Duplex Unit .............................................................................. 3-95
3.13.2 Duplex Transport Motor ........................................................... 3-95
3.14 Electrical Components .................................................................... 3-97
3.14.1 Controller Unit .......................................................................... 3-97
3.14.2 Controller Box Cover................................................................ 3-97
3.14.3 Controller Box .......................................................................... 3-98
3.14.4 BICU ...................................................................................... 3-100
3.14.5 IOB......................................................................................... 3-101
3.14.6 PSU ....................................................................................... 3-101
3.14.7 SIO (Scanner In/Out) Board................................................... 3-102
3.14.8 High Voltage Supply Board .................................................... 3-103
3.14.9 High Voltage Supply Board Bracket ....................................... 3-104
3.14.10 Controller Board ................................................................. 3-105
3.14.11 HDD ................................................................................... 3-106
3.14.12 NVRAM Replacement Procedure....................................... 3-107
TROUBLESHOOTING
4. Troubleshooting .................................................................... 4-1
4.1 Process Control Error Conditions...................................................... 4-1
4.1.1 Developer Initialization Result ....................................................... 4-1
4.1.2 Process Control Self-Check Result ............................................... 4-2
4.1.3 Line Position Adjustment Result .................................................... 4-6
4.2 Scanner Test Mode ........................................................................... 4-7
4.2.1 VPU Test Mode.............................................................................. 4-7
4.2.2 BICU (IPU) Test Mode ................................................................... 4-7
4.3 Service Call Conditions ..................................................................... 4-9
4.3.1 Summary ....................................................................................... 4-9
4.4 SC Table.......................................................................................... 4-13
4.5 Troubleshooting Guide .................................................................... 4-97
4.5.1 Image Quality .............................................................................. 4-97
4.5.2 Line Position Adjustment ........................................................... 4-100
4.6 Jam Detection ............................................................................... 4-109
4.6.1 Paper Jam Display .................................................................... 4-109
4.6.2 Jam Codes and Display Codes ................................................. 4-109
B230/B237 vi SM