Ricoh PRO C7200X - Page 108

1.SC Codes
104
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
06
The AC power supply frequency is low or unstable.
 Unstable commercial power supply frequency
Check if the SC occurs by turning the power OFF then ON. If the SC occurs again,
do the following steps. Check if the SC reoccurs by cycling the power after each
step.
1. Change the frequency of the commercial power supply line to 50 Hz or 60 Hz.
2. Replace the AC drive board.
3. Replace the IOB.
4. Check the connectivity from CN419 on the AC drive board to CN322 on the
IOB.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC548-
00
A
Software High Temperature Detection: Heating Roller Thermistor
Heating Roller Thermistor detected 250 degrees or higher 6 seconds
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
SC549-00
A
Hardware High Temperature Detection: Heating Roller Thermistor
Heating Roller Thermistor detected 230 degrees or higher.
 Triac shorted.
 IOB board defective.
 Fuser Unit controller software runaway
-
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC550-
01
D
Fuser Belt Smoothing Roller Motor Error
 Error at motor startup
A lock signal was not detected for 2 second or longer after 1 second has
passed from the motor START signal switching ON.
 Error during motor running normally
A Lock signal was not detected for 2 second or longer during the motor