Ricoh MP C2504 Field Service Manual page 901

6. Troubleshooting
SC No.
SC701-03
SC701-08
SC No.
SC702
892
Type Error Name/Error Condition/Major Cause/Solution
D Paper Feed Motor Driver Error
Detection of error signal from motor driver
D Paper Exit Motor Driver Error
Detection of error signal from motor driver.
• Encoder disconnection
• Encoder connector dropout
• Encoder defective
• Overload
• Motor deterioration
Check if the SC occurs by turning the main power OFF then ON,
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.
• The target parts that need to be checked are all motors, all
solenoids, all clutches, and all sensors.
1. Check if the connector of the target part is connected securely.
Reconnect the connector if it is disconnected, or loose.
2. Check the harness for the target part. Replace the harness if it is
disconnected, or damaged.
3. Check if the motor runs, sensors turn OFF/ON, 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.
Type Error Name/Error Condition/Major Cause/Solution
ARDF DF3090 (D779) Error