FAQs & Troubleshooting
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MFC-J3940DW
141 Results
1.
The printer status is Offline or Paused.
2.
One or more of my colors are not printing (blank).
3.
Delete print jobs from the print queue.
4.
Set up your Brother machine on a wireless network (Windows/macOS)
5.
Cannot Scan XX or Unable to Scan XX
6.
Cannot Print XX or Print Unable XX
7.
I cannot repair the wired or wireless connection using the Network Connection Repair Tool (Windows)
8.
I cannot use Gmail for Email functions (such as Scan-to-Email) and Internet Fax (I-Fax)
9.
When accessing Web Based Management via HTTPS, I get a security warning that the connection is not private or that the site is not secure.
10.
Configure and use PC-FAX (CUPS) (Linux)
11.
Install the Brother Mobile Connect application (for mobile device)
12.
Paper Tray not detected / Paper Tray 1/2/3 not detected / Paper Tray #1/2/3 not detected
13.
What is the recommended paper?
14.
The scanning speed is slow when scanning from my machine. (Windows)
15.
I cannot install the fax driver (brmfcfaxdrv) in Fedora 40 or later, or in its derivatives. (Linux)
16.
I cannot install the scanner driver (brscan5) in Fedora 40 or later. (Linux)
17.
I cannot install Scan-key-tool in Ubuntu 23.10 or later, or in its derivatives. (Linux)
18.
I cannot install Brother drivers on Debian 10 or later (Linux)
19.
What driver package format is supported by my Linux distribution?
20.
Important points for specifying the scan area (Linux)
21.
Set up a Brother machine and your mobile device on a wireless (Wi-Fi) network
22.
Change the Print Options to Improve Your Print Results
23.
My Brother machine could not be found over the network when I installed drivers on my computer.
24.
Printer Jam or Paper Jam
25.
What is the default password for my Brother machine?
26.
Connect a Brother machine to a wireless (Wi-Fi) network using the Brother Mobile Connect app
27.
(Video) Print a long paper
28.
Cannot print after a Windows 10 update (June 2020)
29.
Command List of brscan. (Linux)
30.
How do I use Mopria™ Print Service (MPS) with my Brother machine?