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3. Troubleshooting
SC Code Errors
SC950 USB chip ID read error
Description: An illegal number was detected for the USB chip ID at power on.
Probable Cause: USB chip defective
Location: Control board
3
Procedure:
1.
Cycle printer on/off, check result.
2.
Replace control board.
SC951 No definition allocated to USB
Description: An unrecognizable interrupt signal was detected for the USB chip.
Probable Cause: USB chip defective
Location: Control board
Procedure:
1.
Cycle printer on/off, check result.
2.
Replace control board.
SC970 Flash ROM erase error
Description: Occurs during data write to an IC card. The data on the Flash ROM failed to erase during a
write operation to an IC card for firmware update. This SC is logged (it does not appear on the printer
operation panel).
Probable Cause: NVRAM (Flash ROM) defective
Location: Control board
Procedure:
1.
Replace control board.
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