SM vii D117/D118
4.15.1 CONTROLLER BOX ................................................................. 4-124
4.15.2 CONTROLLER BOARD............................................................ 4-127
4.15.3 CONTROLLER BOARD DIMM ................................................. 4-129
4.15.4 BICU ......................................................................................... 4-130
4.15.5 PSU .......................................................................................... 4-131
4.15.6 TONER BOTTLE ID CONTACT SENSOR ............................... 4-133
4.15.7 ACVB ........................................................................................ 4-134
4.15.8 HVPS (C, B).............................................................................. 4-135
4.15.9 HVPS (T1, T2) .......................................................................... 4-137
4.15.10 PSU FAN ................................................................................ 4-137
4.15.11 PCDU DUCT FAN .................................................................. 4-140
4.15.12 EXHAUST FAN ....................................................................... 4-142
4.15.13 TEMPERATURE / HUMIDITY SENSOR ................................ 4-143
4.16 ARDF ............................................................................................... 4-144
4.16.1 ARDF UNIT............................................................................... 4-144
When installing the ARDF ................................................................ 4-145
4.16.2 ARDF REAR COVER ............................................................... 4-146
4.16.3 ORIGINAL FEED UNIT ............................................................. 4-146
4.16.4 PICK-UP ROLLER .................................................................... 4-147
4.16.5 FEED ROLLER ......................................................................... 4-148
4.16.6 FRICTION PAD ........................................................................ 4-149
4.16.7 DFRB ........................................................................................ 4-149
4.16.8 ARDF TOP COVER SENSOR/ ORIGINAL SET SENSOR ....... 4-150
4.16.9 ARDF DRIVE MOTOR .............................................................. 4-150
4.16.10 WHITE PLATE ........................................................................ 4-152
When installing the white plate ......................................................... 4-153
4.16.11 REGISTRATION SENSOR ..................................................... 4-153
5. SYSTEM MAINTENANCE ............................................................. 5-1
5.1 SERVICE PROGRAM MODE .................................................................... 5-1
5.1.1 SP TABLES ...................................................................................... 5-1
5.1.2 ENABLING AND DISABLING SERVICE PROGRAM MODE ........... 5-1
Entering SP Mode ................................................................................ 5-1
Exiting SP Mode ................................................................................... 5-1
5.1.3 TYPES OF SP MODES .................................................................... 5-1
SP Mode Button Summary ................................................................... 5-2
Switching Between SP Mode and Copy Mode for Test Printing ........... 5-2
Selecting the Program Number ............................................................ 5-3
Exiting Service Mode............................................................................ 5-3
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