Ricoh B234 Service Manual page 437

SC185 B Exposure Lamp 1 Lamp Regulator (Right) Error
The MCU detected a defect in
the lamp regulator (right) when
the 1st exposure lamp lit. .
SC186 B Exposure Lamp 2 Lamp Regulator (Left) Error
The MCU detected a defect in
the lamp regulator (left) when
the 2nd exposure lamp lit. .
SC187 B Scanner Unit Fan Error: Scanner Unit Exhaust Fan
The MCU issued a lock signal
for the the scanner unit exhaust
fan (rear, left).
SC188 B Scanner Unit Fan Error: Scanner Motor Cooling Fan
The MCU issued a lock signal
for the scanner motor cooling
fan.
SC202 B Polygon Motor Error 1: ON Timeout
The polygon mirror motor did not
reach its operating speed within
20 s after the polygon motor
switched on.
SM
SERVICE CALL CONDITIONS
• 1st exposure lamp defective
• 1st lamp FFC (flat film cable) loose or
defective
• MCU
lamp regulator (left) harness
defective
• Lamp regulator (left) is defective
• MCU defective
• SIB defective
• 2nd exposure lamp defective
• 2nd lamp FFC (flat film cable) loose or
defective
• MCU
lamp regulator (left) harness
defective
• Lamp regulator (left) is defective
• MCU defective
• SIB defective
• Scanner unit harness loose, defective
• Fan, MCU harness loose, defective
• Scanner unit exhaust fan motor defective
• MCU defective
• SIB defective
• Scanner unit harness loose, defective
• Fan, MCU harness loose, defective
• Scanner unit exhaust fan motor defective
• MCU defective
• SIB defective
• Connection between the polygon mirror
motor control board and the motor is
loose, broken, or defective
• Polygon mirror motor defective
• Polygon mirror motor control board
defective
• IPU defective
• BCU defective
4-17 B234/B235/B236/D101/D102/D103