FAQs & Troubleshooting
![]() |
Popular |

MFC-9840CDW
366 Results
1.
How do I install the Optional Tray Unit?
2.
Color around the edge of printing is incorrect.
3.
I installed the Full Driver & Software Package, but some applications were not installed. (For Windows 10)
4.
Replace the drum unit.
5.
How do I turn off/on the Toner Save Mode?
6.
Vertical colored streaks or bands appear on the page.
7.
I'm using Mac OS X 10.4 Tiger. I cannot scan after installing the scanner driver.
8.
My Antivirus Software gives a warning message during the installation of Web BRAdmin.
9.
Can I use voice mail on the same line as my Brother machine?
10.
Spots are printed at 75mm.
11.
Replace the drum unit.
12.
Why does my Brother machine sometimes print the Transmission Verification Report even though I've turned the report off?
13.
Unable to print or scan when using Brother iPrint&Scan from my Android™ mobile device.
14.
I cannot use Gmail for Email functions (such as Scan-to-Email) and Internet Fax (I-Fax)
15.
Download a file from the "Downloads" section and save it to Windows 8 computer.
16.
I cannot view scanned images that I saved to iCloud from iPhone / iPod touch or iPad using the Brother iPrint&Scan.
17.
The error message "IS052 InstallNetworkDriver" appears when installing the MFL-Pro Suite from the CD-ROM or the Full Driver & Software Package is downloaded from the "Download" section.
18.
The rainbow cursor keeps spinning when I click on Copy/PC-FAX in ControlCenter2 (For Mac OS X 10.7).
19.
Tips for copy/scanning and preventing document jams
20.
Duplex (two-sided) scan
21.
Adjust color settings by using the custom setting in the printer driver
22.
I print mainly black and white documents. How can I stop the life of my color toner cartridges from decreasing when I print?
23.
When I try to scan to OCR I get an error message saying "This feature is not available because there is no OCR Software installed".
24.
I just replaced the toner cartridge and the LCD continues to display the message "Toner Life End" or "Replace Toner".
25.
Which E-mail packages are compatible with ControlCenter3?
26.
How do I replace the belt unit?
27.
How do I clear the message "Jam Tray 1" or "Jam Tray 2" from the LCD display?
28.
White lines or bands or ribbing appear across the page.
29.
Can I print from DOS applications?
30.
What is the BRAdmin Professional software used for?