If you are printing black and white documents, we recommend that you select the option for monochrome mode in the printer driver. The machine will print using color toner if the print job is sent in color mode. Even if the document looks black and white, your software program may send commands to print using a combination of black and color toners.
If you want to print using only the black toner, configure the print job to monochrome in the printer driver settings.
Also if one or more of the color cartridges are empty, you can still print in black by configuring the print job to monochrome in the printer driver settings. (* except MFC-9420CN)
Brother strongly recommends that customers use only genuine Brother drum units and/or toner cartridges. Each Brother laser printer is designed to work at pre-set temperatures that are matched exactly to each of our individual toner formulations. Each individual component is designed to work with the other to ensure quality and reliability. Using non-Brother supplies may affect the hardware performance, print quality and machine reliability. The Brother limited warranty does not apply to any problem that is caused by the use of third party drum units, toner cartridges, or toner.
NOTE: Illustrations shown below are from a representative product and operating system, and may differ from your Brother machine and operating system.
How to configure the print job to monochrome in the printer driver settings
For Windows® printer driver:
- Open Printing Preferences. (Click here to see the details of how to open Printing Preferences.)
- Choose Mono in Color/Mono.

- Click Apply and OK.
For Windows® BR-Script3 printer driver:
- Open Printing Preferences. (Click here to see the details of how to open Printing Preferences.)
- Click Advanced....
- Choose Mono for Color/Mono in Printer Features, and click OK.

For Mac OS X CUPS printer driver:
- Open Print dialog. (Click here to see the details of how to open Print dialog.)
- Choose Print Settings from the pane pop-up menu.
- Choose Mono in Color/Mono, and click Print.

For Mac OS X BR-Script3 printer driver:
- Open Print dialog. (Click here to see the details of how to open Print dialog.)
- Choose Printer Features from the pane pop-up menu, and choose General 1 (Set 1 for Mac OSX 10.4, available for certain models) for Feature Sets.
- Choose Mono in Color/Mono, and click Print.
