FAQs & Troubleshooting
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MFC-L3770CDW
344 Results
1.
Replace the Waste Toner Box
2.
(Video) Replace the Toner Cartridge
3.
The error message "No Supported Devices Found" appears on the Brother iPrint&Scan screen (mobile device).
4.
Setup a Brother machine on a wireless (Wi-Fi) network.
5.
Replace the Drum Unit
6.
Print on Both Sides of the Paper Automatically (Automatic 2-sided Printing)
7.
The color of your printouts is not what you expected
8.
Scan Using Secure Function Lock 3.0
9.
I updated my Windows 11 PC through Windows Update and I can no longer Print, Scan or Fax from my PC.
10.
Enable the Brother machine's network interface.
11.
Print or Scan from the Brother iPrint&Scan application using the NFC function of an Android™ mobile device.
12.
Brother iPrint&Scan cannot find my Brother machine (macOS)
13.
Easy Scan to E-mail
14.
(Video) Connect telephone line and power cords
15.
How to identify your Operating System (OS).
16.
Change the scan settings for scanning from ControlCenter4 or the SCAN key (For Windows)
17.
Set the Number of Rings Before the Machine Answers (Ring Delay)
18.
Paper is Jammed in the Back of the Machine
19.
I cannot connect to the printer via Wi-Fi Direct using the Brother Print Service Plugin (Android™ 12 or later).
20.
(Video) Update the Driver or Firmware for your Brother machine
21.
Paper is Jammed Inside the Machine
22.
I cannot use Gmail for Email functions (such as Scan-to-Email) and Internet Fax (I-Fax)
23.
Calibrate Colour Output
24.
Toner Low
25.
Shrink Page Size of an Oversized Incoming Fax
26.
Update your machine's firmware using Brother iPrint&Scan (Android/iOS)
27.
(Video) Set up your Brother machine
28.
(Video) Unpack your Brother machine
29.
Adjust color settings by using the custom setting in the printer driver
30.
I cannot repair the wired or wireless connection using the Network Connection Repair Tool (Windows)