Ricoh M281 Series - Page 11

SM vii D255/D256/M281/M282
NVRAM on the controller board .......................................................................... 4-141
4.23.3 BICU ................................................................................................................ 4-144
Replacing the NVRAM (EEPROM) on the BiCU................................................. 4-145
4.23.4 IOB ................................................................................................................... 4-147
IOB (MP 501/601)................................................................................................ 4-147
IOB (SP 5300/5310) ............................................................................................ 4-148
Replacing the NVRAM (EEPROM) on the IOB ................................................... 4-149
4.23.5 CONNECT-LEFT PCB .................................................................................... 4-150
4.23.6 FUSING THERMISTOR CONNECTION PCB ................................................ 4-152
4.23.7 POWER PACK ................................................................................................ 4-153
4.23.8 PSU ................................................................................................................. 4-154
4.23.9 HDD (MP 501/601 ONLY) ............................................................................... 4-156
Adjustment after Replacement ............................................................................ 4-157
4.24 FANS ................................................................................................................... 4-158
4.24.1 PSU FAN ......................................................................................................... 4-158
4.24.2 DIRECTION OF INSTALLING THE FANS ...................................................... 4-159
4.25 ARDF (MP 501/601 ONLY) ................................................................................. 4-160
4.25.1 ARDF UNIT ..................................................................................................... 4-160
4.25.2 ARDF PAPER FEED ROLLER, ARDF PICKUP ROLLER .............................. 4-162
4.25.3 ARDF FRICTION PAD .................................................................................... 4-163
4.25.4 ARDF INVERTER MOTOR ............................................................................. 4-163
4.25.5 ARDF PAPER FEED MOTOR, ARDF PAPER TRANSPORT MOTOR .......... 4-165
4.26 PAPER FEED UNIT (PAPER FEED UNIT PB1100) ........................................... 4-168
4.26.1 PAPER FEED ROLLER, PICKUP ROLLER ................................................... 4-168
4.26.2 SEPARATION ROLLER .................................................................................. 4-169
4.26.3 MAIN BOARD .................................................................................................. 4-171
4.26.4 DRIVE UNIT .................................................................................................... 4-172
5. SYSTEM MAINTENANCE ............................................................. 5-1
5.1 FIRMWARE UPDATE .................................................................................................... 5-1
5.1.1 OVERVIEW ......................................................................................................... 5-1
5.1.2 FIRMWARE TYPE ............................................................................................... 5-1
MP 501/601 ............................................................................................................. 5-1
SP 5300/5310 .......................................................................................................... 5-3
5.1.3 PROCEDURE...................................................................................................... 5-4
Update procedure (MP 501/601) ............................................................................. 5-5
Update procedure (SP 5300/5310) ......................................................................... 5-8
5.1.4 ERROR SCREENS DURING UPDATING .......................................................... 5-9
5.2 RFU UPDATING THE FIRMWARE.............................................................................. 5-16
5.2.1 RFU PERFORMABLE CONDITION ................................................................. 5-16