Ricoh MP C2504 Field Service Manual page 902

SC No. Type
SC702-01 D
Error Name/Error Condition/Major Cause/Solution
Protection Device Intercept Error
When original source 5V power supply is ON, protection device
intercept of 24V power supply system is detected.
Any of feed motor, transport motor, reverse solenoid, paper feed
solenoid, paper feed clutch and FAN motor defective, a harness short-
circuit occurs, and the protection device of the 24V power supply system
intercepts.
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, and all clutches.
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 specific part runs (OUTPUT Check), has no overloads,
and is properly driven. Replace the part if there are any defects.
4. Check if there are any signs of a short circuit. Replace the parts if
there are any defects.
Service Call 700-792
893