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Other problems
Your device does not respond.
• To power off your device, press and
hold the power button for 6 seconds or
more. If the device still does not respond,
remove the AC adapter.
• Your device might lock when it enters
sleep mode during a communication
operation. Disable the sleep timer when
you are working on the network.
The connected external device
does not work.
• Do not connect or disconnect any external
device cables other than USB while the
device power is on. Otherwise you might
damage your device.
• When using a high power consumption
external device such as an external USB
optical disk drive, use an external device
power adapter. Otherwise, the device may
not be recognized.
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