Brother MFC-L9570CDW
Troubleshooting. Problem of USB direct interface
User Check
- Wait for one minute while connecting the USB flash memory and check if it works normally.
- Connect the USB flash memory again.
- Replace the USB flash memory.
- Check that the extension of data in the USB flash memory is correct.
- Check that the USB device out of specification is not connected.
- Check that the multiple USB devices are not connected to the machine.
Step | Cause | Remedy |
---|---|---|
1 | Connection failure of the USB host harness | Reconnect the USB host harness. |
2 | USB host PCB failure | Replace the USB host PCB ASSY. |
3 | Main PCB failure | Replace the main PCB ASSY. |