Ricoh Aficio MP171 Field Service Manual page 11

PSU................................................................................................................................................................93
Controller Board.......................................................................................................................................... 95
BCU...............................................................................................................................................................96
EEPROM on the BCU.................................................................................................................................. 97
Toner End Sensor......................................................................................................................................... 97
HVPS............................................................................................................................................................. 98
HVPS with Bracket....................................................................................................................................... 98
Fusing Fan.....................................................................................................................................................99
PCDU Cooling Fan...................................................................................................................................... 99
PSU Cooling Fan....................................................................................................................................... 100
DC Switch.................................................................................................................................................. 100
Front Door Interlock Switch...................................................................................................................... 101
Rear Door Interlock Switch....................................................................................................................... 102
Temp Humid Sensor.................................................................................................................................. 102
Rear Cover Switch.....................................................................................................................................102
5. System Maintenance
Service Program Mode................................................................................................................................. 105
SP Tables....................................................................................................................................................105
Enabling and Disabling Service Program Mode....................................................................................105
Entering SP Mode.............................................................................................................................105
Exiting SP Mode............................................................................................................................... 106
Types of SP Modes....................................................................................................................................106
Updating the Firmware..................................................................................................................................107
Overview....................................................................................................................................................107
Environmental Requirements............................................................................................................107
Update Precautions.......................................................................................................................... 107
Items Required for Updating the Firmware.....................................................................................108
Update Procedure............................................................................................................................ 108
Update Error (Recovery Mode)...................................................................................................... 112
Debug Log......................................................................................................................................................115
Overview....................................................................................................................................................115
Operational procedure (USB connection)..............................................................................................116
Operational procedure (TCP/IP connection)......................................................................................... 117
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