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Easy · 3 minSetup & driversBrother

Adjust or disable sleep mode

The printer goes to sleep and then won't wake over Wi-Fi. Either lengthen the sleep timer or turn off deep sleep so it stays reachable.

01 · Identify — does this match what you see?

  • First print after idle fails or is slow
  • Printer shows “Sleep” and won't respond
  • Wi-Fi drops after long idle

02 · Resolve — follow in order

  1. 1

    On the panel, go to Menu → General Setup → Ecology → Sleep Time.

  2. 2

    Increase the timer (e.g. to 30 or 60 minutes) if the printer sleeps too fast.

  3. 3

    To keep it always reachable, set “Auto Power Off” to Off and reduce deep-sleep depth if offered.

  4. 4

    If Wi-Fi still drops, set a static IP reservation in your router so reconnects are instant.

  5. 5

    Test by letting it idle 10 minutes, then print from your phone.

Pro tip

Deep sleep (vs light sleep) is what kills Wi-Fi reachability. If your model has a “Power Save” vs “Deep Sleep” toggle, choose Power Save to stay on the network.

03 · Applies to

HL-L2350DWMFC-L2710DWMFC-J1010DW

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