Ricoh D124-17 Service Manual page 627

SC686-41 C Ink Cartridge (K): Device ID Error
SC686-42 C Ink Cartridge (K): Channel Error (Bus Disconnection, etc.)
SC686-43 C Ink Cartridge (K): Device Error (No ACK Signal)
SC686-44 C Ink Cartridge (K): Communication Error
SC686-45 C Ink Cartridge (K): Communication Timeout
SC686-46 C Ink Cartridge (K): Communication Operation Stop Error
SC686-47 C Ink Cartridge (K): Buffer Full
SC686-48 C Ink Cartridge (K): Other Parameter Error
There was an error in communication with the ID Chip on the Black ink
cartridge. Five retries were attempted and failed.
SC687 D PER command error
The main machine received no PER-command module from the GW
controller.
• Ink cartridge ID data corrupted or chip damaged
• Spurious noise
• Cycle the machine off/on
• Remove the Yellow ink cartridge and set it again
• Switch the machine on
• If the problem persists, replace the Yellow ink cartridge
• Ink cartridge ID data corrupted or chip damaged
• Spurious noise
• Cycle the machine off/on
• Remove the Black ink cartridge and set it again
• Switch the machine on
• If the problem persists, replace the Black ink cartridge
• Poor communication, cycle the machine power off/on
SC600: Communication
625