If your Tn2250 or TN2230 doesn’t automatically reset the toner counter on your Brother MFC-7360N or MFC-7860DW printer you may wish to try the following procedure:
Open the front panel of your Brother MFC-7360N or MFC-7860DW Multifunction printer.
Press the Clear/Back button. A display message will then show “REPLACE DRUM? 1. Yes 2. No”.
Do not type 1 or 2, this is not the command you should enter. Instead type *00 on the keypad and you should be rewarded with the word “accepted”.
Close the front door. The toner counter is then reset.
This has been tested on the MFC7360N and MFC7860DW but should also work on any other MFC multifunction printers that use the TN2250 cartridge.