Ricoh MP C2504 Field Service Manual page 876

SC No. Type
SC665-41 D
SC No. Type
SC665-42 D
Error Name/Error Condition/Major Cause/Solution
Macaron1 Communication Error
The machine detects the communication error between CPU and
Macaron1 when starting up, or recovery from energy saver mode.
• FFC connection error
• FFC defective (disconnected, foreign object, etc.)
• The following board defects (Parts implementation defect, solder
scrap, implemented parts defect, etc.);
• BCU
• IPU
1. Turn the main power OFF/ON.
2. Replace the IPU.
3. Reconnect the FFC between BCU and IPU.
4. Replace the FFC between BCU and IPU.
5. Replace the BCU.
Error Name/Error Condition/Major Cause/Solution
Macaron2 Communication Error
The machine detects the communication error between CPU and
Macaron2 when starting up, or recovery from energy saver mode.
• FFC connection error
• FFC defective (disconnected, foreign object, etc.)
• The following board defects (Parts implementation defect, solder
scrap, implemented parts defect, etc.);
• BCU
• IPU
1. Turn the main power OFF/ON.
2. Replace the IPU.
3. Reconnect the FFC between BCU and IPU.
4. Replace the FFC between BCU and IPU.
5. Replace the BCU.
Service Call 620-687
867