FAQs & Troubleshooting
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MFC-L3770CDW
344 Results
1.
(Video) Replace the Toner Cartridge
2.
Replace the Drum Unit
3.
I updated my Windows 11 PC through Windows Update and I can no longer Print, Scan or Fax from my PC.
4.
Document Jam
5.
Paper is Jammed in the Back of the Machine
6.
Toner Low
7.
Replace the Waste Toner Box
8.
Print on Both Sides of the Paper Automatically (Automatic 2-sided Printing)
9.
Setup a Brother machine on a wireless (Wi-Fi) network.
10.
Drum !
11.
I cannot repair the wired or wireless connection using the Network Connection Repair Tool (Windows)
12.
Replace Fuser
13.
The color of your printouts is not what you expected
14.
Brother iPrint&Scan cannot find my Brother machine (macOS)
15.
I still receive the error message "Replace Drum", "Drum End Soon" or "Drum Stop" after I replace the drum unit with a new one.
16.
The scanned data is attached to an E-mail application which I do not use regularly, or the error message indicating no default E-mail application is registered on my computer (CC4-121-[error code]) when trying to scan a document directly into my E-mail application using ControlCenter4 or the SCAN key on my Brother machine.
17.
The error message "No Supported Devices Found" appears on the Brother iPrint&Scan screen (mobile device).
18.
Toner scatter or toner stain
19.
Easy Scan to E-mail
20.
Colors are light or faint on the whole page
21.
Set Telephone Line Compatibility for Interference and VoIP Systems
22.
Curled or wavy
23.
What is the default password for my Brother network card, BRAdmin, Remote Setup or Web Based Management?
24.
Calibrate Color Output
25.
My Brother machine could not be found over the network when I installed drivers on my computer.
26.
Replace the Belt Unit
27.
Cover is Open
28.
Paper is Jammed underneath the Paper Tray
29.
(Video) Unpack your Brother machine
30.
Uneven color density across the page