Brother MFC-J6510DW Software User's Manual page 116

Firewall settings (For Network users)
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If you still have trouble with your network connection such as Network Scanning or Printing, check the
File and Printer Sharing box in the Exceptions tab and then click OK.
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Windows 7 users
a
Click the button, Control Panel, System and Security and then Windows Firewall.
Make sure the Windows Firewall is set to On.
b
Click Advanced settings. The Windows Firewall with Advanced Security window appears.
c
Click Inbound Rules.
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