User Manual
Table Of Contents
- Product Safety Guide
- How to use this guide:
 - Symbols and conventions used in the documentation
 - Compilation and Publication Notice
 - Choose a safe location for your product
 - General precautions
 - Connecting the product safely
 - Servicing the product
 - Product Warranty & Liability
- Approval Information
 - Declaration of Conformity (Europe only)
 - Declaration of Conformity for R&TTE Directive 1999/5/EC (Europe only) (Applicable to models with radio interfaces)
 - Wireless LAN
 - NFC (Models with NFC function only)
 - LAN connection (Models with Wired LAN function only)
 - Recycling information in accordance with the WEEE and Battery Directives
 - Imaging Equipment Voluntary Agreement
 
 - Trademarks
 - Open Source Licensing Remarks
 - Copyright and License
 - Other Information
 - Brother Customer Service
 - Unlawful use of copying equipment
 - Information for compliance with Commission Regulation 801/2013
 - brother CEE-ENG
 
 
2
Symbols and conventions used in the 
documentation
1
The following symbols and conventions are used throughout the documentation.
Follow all warnings and instructions marked on the product.
NOTE
The illustrations in this guide show the 
MFC-J3930DW.
WARNING
WARNING indicates a potentially 
hazardous situation which, if not avoided, 
could result in death or serious injuries.
CAUTION
CAUTION indicates a potentially hazardous 
situation which, if not avoided, may result in 
minor or moderate injuries.
IMPORTANT
IMPORTANT indicates a potentially 
hazardous situation which, if not avoided, 
may result in damage to property or loss of 
product functionality.
NOTE
NOTE specifies the operating environment, 
conditions for installation, or special 
conditions of use.
Prohibition icons indicate actions 
that must not be performed.
This icon indicates that flammable 
sprays must not be used.
This icon indicates that organic 
solvents such as alcohol and liquids 
must not be used.
Electrical Hazard icons alert you to 
possible electrical shocks.
Fire Hazard icons alert you to the 
possibility of a fire.
Bold Bold typeface identifies specific 
keys on the product’s control 
panel or on the computer 
screen.
Italics Italicized typeface emphasizes 
an important point or refers you 
to a related topic.
Courier 
New
Text in the Courier New font 
identifies messages on the 
LCD of the product.










