MFC-L3780CDW
FAQs & Troubleshooting |

MFC-L3780CDW
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Popular
Updated:05/01/2026
These are the most viewed FAQs, ranked by popularity.
- 1.What is the default password for my Brother machine?
- 2.No Paper / No Paper Tray1/Tray2/MP Tray
- 3.The message "Retry Updating by USB", "Retry by USB" or "Try updating by Firmware Update tool." appears on the machine's LCD when the machine is turned on.
- 4.The color of your printouts is not what you expected
- 5.The printer status is Offline or Paused.
Latest
These are the latest FAQs, sorted by last update date.
04/13/2026
How to identify your Operating System (OS).
04/02/2026
Uninstall the Brother Software and Drivers (Windows)
03/18/2026
I cannot print a test page after installing the printer driver. (Windows)
03/09/2026
I cannot install the printer driver or print in Windows 11.
02/05/2026
I cannot find a file downloaded from the Brother support website (For Windows)
