Brother MFC-J460DW Online User's Manual page 558

You can also adjust the speaker volume using the Hook button.
a. Press
[Fax]
b. Press [Hook].
c. Press or
d. Press or
e. When finished, press [Hook] again.
Related Information
• General Settings
MFC-J880DW/MFC-J885DW only: When [Fax Preview] is set to [On], press [Sending Faxes].
1
MFC-J880DW/MFC-J885DW only: When [Fax Preview] is set to [On], press this icon twice.
2
1
.
2
.
on the Touchscreen. Each press decreases or increases the volume.
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