Ricoh SP 8400DN Field Service Manual page 759

SC No. Type
SC727-71 B 2nd Fold Motor Error
Encoder error
This is reported as a jam error when detected for the first time. If it occurs again in a row, its
SC code appears.
•
Motor defective
•
Motor harness entrapped (short circuit or breaking of wire)
•
Connector disconnected
•
Controller board defective
Remove the jammed paper or slip of paper from the tray, and check if the SC occurs by
turning the main power OFF then ON, submitting a job, feeding paper, opening/closing
covers, and input/output check. If the SC occurs again, do the following steps. Check if the
SC reoccurs by cycling the power after each step.
1. Check if all connectors between the controller board and the motors are connected
securely. Reconnect the connectors if they are disconnected, or loose.
2. Replace the harness if it is disconnected, or damaged.
3. Check if the motor runs, has no overloads, and is properly driven. Replace the parts if
there are any defects.
4. Check if there are any signs of a short circuit. Replace the parts if there are any defects.
SC727-72 B The power supply for the sensor is defective.
The power supply for the sensor (5V_SN) is defective.
This is displayed as an SC code from its initial detection.
•
Sensor harness entrapped (short circuit or breaking of wire)
•
Sensor defective
•
Controller board defective
Turn the main power OFF then ON after checking whether there are no foreign objects (such
as remaining paper) in the tray. If the SC occurs again, do the following steps. Check if the SC
reoccurs by cycling the power after each step.
1. Check if the harness is connected to the wrong sensor. Reconnect the connector if there
are any defects.
2. Replace the harness if it is disconnected, or damaged.
3. Check if the sensor turns OFF/ON. Replace the parts if there are any defects.
4. Check if the motor runs, has no overloads, and is properly driven. Replace the parts if
there are any defects.
5. Check if there are any signs of a short circuit. Replace the parts if there are any defects.
SC No. Type
SC745 Mail Box CS3010 Error
SC745-03 D Protection Device Intercept Error 1
Error Name/Error Condition/Major Cause/Solution
Error Name/Error Condition/Major Cause/Solution
SC Tables: SC7xx (Peripherals)
577