HL-4570CDW
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常见问题解答与故障排除 |
Unusable Device
An incompatible or defective device has been connected to the USB direct interface(1).
Remove the USB flash memory drive from the USB Direct Interface(1). If prompted, turn off your Brother machine and then turn it on again.
NOTE: Illustrations shown below are from the representative product and may differ from your Brother machine.
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