# THE CONNECTED USB DEVICE CANNOT BE USED

Point to check | Solution
--- | ---
Is the USB device compatible with the machine? | Ask your dealer if the device is compatible with the machine. USB devices that are not compatible with the machine cannot be used.
Is the connected USB device recognized correctly? | Use [USB-Device Check] in the setting mode to check whether or not the device is recognized. "Setting mode" → [System Settings]→[USB-Device Check] If it is not recognized, connect it once again.

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