MFC-9840CDW
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FAQs & Troubleshooting |

MFC-9840CDW
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How To / Troubleshooting
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Consumables & Accessories / Routine Maintenance
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Popular
Updated:01/08/2025
These are the most viewed FAQs, ranked by popularity.
- 1.I installed the Full Driver & Software Package, but some applications were not installed. (For Windows 10)
- 2.Can I use voice mail on the same line as my Brother machine?
- 3.Duplex (two-sided) scan
- 4.Can I connect a telephone on the same line as the Brother machine in Fax/Tel Mode?
- 5.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?
Latest
These are the latest FAQs, sorted by last update date.
30/07/2025
I am having a problem receiving faxes.
30/07/2025
Why doesn't the machine answer when receiving a call?
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)