Ricoh M065 Service Manual page 18

4.12.7 BY-PASS PAPER END SENSOR ........................................ 4-128
4.12.8 BY-PASS FEED ROLLER, FRICTION PAD ........................ 4-129
4.12.9 HVPS: D .............................................................................. 4-132
4.12.10 FUSING FAN ..................................................................... 4-133
When installing the fusing fan ...................................................... 4-133
4.13 ELECTRICAL COMPONENTS .................................................... 4-134
4.13.1 BOARDS .............................................................................. 4-134
4.13.2 HDD ..................................................................................... 4-136
Disposal of HDD Units ................................................................. 4-137
Reinstallation ............................................................................... 4-137
4.13.3 CONTROLLER FAN ............................................................ 4-138
When installing the controller fan ................................................ 4-138
4.13.4 CONTROLLER BOARD ....................................................... 4-139
When installing the new controller board ..................................... 4-140
When installing a new HDD unit .................................................. 4-140
4.13.5 BRIDGE BOARD ................................................................. 4-141
4.13.6 PSU ..................................................................................... 4-141
4.13.7 CONTROLLER BOX ............................................................ 4-143
4.13.8 BCU ..................................................................................... 4-145
When installing the new BCU ...................................................... 4-146
Removing the BCU with bracket .................................................. 4-147
4.13.9 HVPS: T1T2 BOARD ........................................................... 4-148
4.13.10 HVPS: CB BOARD ............................................................ 4-148
4.13.11 NVRAM REPLACEMENT PROCEDURE .......................... 4-150
NVRAM on the BCU .................................................................... 4-150
NVRAM on the Controller ............................................................ 4-150
4.14 ADJUSTMENTS .......................................................................... 4-152
4.14.1 GAMMA ADJUSTMENT ...................................................... 4-152
Summary ..................................................................................... 4-152
Adjustment Procedure ................................................................. 4-154
SYSTEM MAINTENANCE REFERENCE
5. SYSTEM MAINTENANCE REFERENCE ................................ 5-1
5.1 SERVICE PROGRAM MODE ............................................................... 5-1
5.1.1 SP TABLES ................................................................................. 5-1
5.1.2 SERVICE MODE OPERATION ................................................... 5-1
Accessing the Required Program .................................................... 5-1
Inputting a Value or Setting for a Service Program ......................... 5-1
M065/M066 vi SM