Ricoh MP C2504 Field Service Manual page 41

SBU..................................................................................................................................................1199
LDB.................................................................................................................................................. 1200
BCU................................................................................................................................................. 1200
IPU................................................................................................................................................... 1200
MSENS1 (Proximity Sensor (Human Detection Sensor), MSENS2 (Proximity Sensor (Human
Detection Sensor) Board).............................................................................................................. 1200
IOB.................................................................................................................................................. 1200
FCU................................................................................................................................................. 1200
OPU.................................................................................................................................................1200
HVP (Composite High-Voltage Power Supply TTS/CB).............................................................1200
PSU..................................................................................................................................................1201
Anti-condensation Heater for Scanner, PCDU, and Paper Feed Tray............................................... 1201
Circuit Configuration......................................................................................................................1201
Exterior Cover/ Air Flows (Fan Control)................................................................................................... 1202
Overview................................................................................................................................................. 1202
Mechanism.............................................................................................................................................. 1205
Cooling of PSU...............................................................................................................................1205
Cooling of Toner Supply Parts...................................................................................................... 1205
Cooling of PCDU parts.................................................................................................................. 1205
Cooling of Fusing Parts.................................................................................................................. 1205
Cooling in Controller Box..............................................................................................................1205
Crisis Management When Temperature Rises in the Machine.................................................. 1206
Helmholtz Silencer......................................................................................................................... 1207
Energy Save.................................................................................................................................................1209
Energy Saver Modes..............................................................................................................................1209
Setting Items that are Related to Energy Saving.......................................................................... 1209
Recovery Time/ Reduced Electrical Consumption...................................................................... 1210
Power States of this Machine.................................................................................................................1212
Verification of Up Time for each Energy Saving State.........................................................................1215
Checking the Up Time by Device State.................................................................................................1215
Recommendation.................................................................................................................................... 1217
Proximity Sensor (Human Detection Sensor)............................................................................................ 1218
Overview................................................................................................................................................. 1218
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