RICOH 2238 C ERROR CODE SC680
SC 680 BCU/ MUSIC communication error
After the engine CPU sends a message, the Music CPU does not respond within five seconds three consecutive times.
• Toner cartridge memory chip loose connection
• Memory chip problem
• Memory chip cable wiring problem
1. Turn the main switch off and on.
2. Check if the toner cartridge is installed correctly.
3. Replace the toner cartridge.
4. Check if the harnesses are not damaged.
5. Replace the BCU.
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