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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

Ricoh M281 Series User Manual

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