MFC-9420CN
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FAQs & Troubleshooting |

MFC-9420CN
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Popular
Updated:29/08/2025
These are the most viewed FAQs, ranked by popularity.
- 1.When I try to dial a One Touch or Speed Dial number, my Brother machine's LCD reads "Not Registered."
- 2.How can I activate/deactivate the Toner Save Mode?
- 3.I'm using Windows Vista or Windows 7 and trying to use a Brother machine connected to the network, but the machine stays offline and I cannot print.
- 4.How do I reset the printer to the default settings?
- 5.Can I use non-Brother or third party supplies with the Brother machine?
Latest
These are the latest FAQs, sorted by last update date.
18/12/2024
How to identify your Operating System (OS).
14/12/2023
Discover the MAC address of the Brother network card
13/09/2023
Can I use my Brother printer with a 64 bit Linux distribution? (Linux)
12/07/2023
Uninstall the drivers. (Mac OS X 10.6 - macOS 12)
21/06/2023
Delete print jobs from the print queue.