MFC-640CW
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FAQs & Troubleshooting |

MFC-640CW
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Popular
Updated:01/08/2025
These are the most viewed FAQs, ranked by popularity.
- 1.I cannot install Brother drivers on Debian 10 or later (Linux)
- 2.I'm using Windows. When I try to Scan to E-mail I get an error saying "the command line argument is not valid. Verify the switch you are using". What should I do?
- 3.What does "NG" or "ERROR" on the Transmission Verification Report mean?
- 4.How do I store numbers on my fax machine for easy dialing? (One-Touch, Speed Dial)
- 5.Why does my machine's LCD show "NO CARTRIDGE" even though I have already installed all the ink cartridges?
Latest
These are the latest FAQs, sorted by last update date.
16/04/2025
I cannot print using my Brother machine on a wired network. (Windows/macOS)
16/04/2025
I cannot print from my computer via USB.
15/04/2025
I can print but cannot scan via network. (For Mac)
05/02/2025
Find the Wireless Security Information (e.g. SSID, Network key etc.) for Mac OS X 10.10.5 or greater
13/12/2024
How to identify your Operating System (OS).