MFC-640CW
FAQs & Troubleshooting |

MFC-640CW
Categorized
How To / Troubleshooting
Setup / Settings
Consumables & Accessories / Routine Maintenance
Others
Popular
Updated:28/04/2026
These are the most viewed FAQs, ranked by popularity.
- 1.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?
- 2.What kind of Media Adapter can I use?
- 3.What driver package format is supported by my Linux distribution?
- 4.The error message "No Supported Devices Found" appears on the Brother iPrint&Scan (mobile device).
- 5.I'm using Mac OS X 10.2 - 10.4 and I'm getting error messages when I try to print.
Latest
These are the latest FAQs, sorted by last update date.
13/04/2026
How to identify your Operating System (OS).
05/02/2026
I cannot find a file downloaded from the Brother support website (For Windows)
19/01/2026
I can print but cannot scan via network. (For Mac)
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.