Ricoh PRO C7210X - Page 110

1.SC Codes
106
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
 Replace the Pressure Roller Fusing Lamp
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC553-
00
A
Overheat detection (software): Pressure Roller NC Sensor
Pressure Roller NC Sensor detected 220 degrees or higher 1 second
consecutively.
Measurement period: 100 milliseconds
 Triac shorted.
 IOB board defective.
 Fuser Unit controller software runaway
 Replace the IOB board.
 Replace the Fuser Unit.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC554-00
A
Overheat detection (hardware): Pressure Roller NC Sensor
Pressure Roller NC Sensor detected 260 degrees or higher.
 Triac shorted.
 IOB board defective.
 Fuser Unit controller software runaway
-
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC555-
00
A
Heater lit continuously: Pressure Roller Fusing Lamp
The DUTY of Pressure Roller Fusing Lamp was equal to the maximum DUTY
(excluding 0%) for 55 seconds continuously after the heater was turned on during
Ready status/preheating/low-power and the fuser unit stopped.
Excluded time: 200 seconds
 Thermistor deformed or floating
 Heater disconnection
 Overheating prevention device worked.
 Replace the Pressure Roller NC Sensor
 Replace the Pressure Roller Fusing Lamp
 Replace the Fuser Unit.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC557-00
C
Zero Cross Error (high frequency)
The AC power supply frequency is high or unstable.