[Brother Toner Trouble Shooting] Compatible TN-660 / TN-630 Not Recognized Problem
After installed Brother TN-660 / TN-630 toner cartridges, the printer keeps showing error message such as "Replace Toner", "Toner Low" or "Toner Ended".
a. Make sure the printer is turned on.
b. Open the front cover.
c. Perform the following steps to reset the rotation count for the TN660:
i. With the front cover open the LCD should display "Cover is Open".
ii. Hold the MENU button down for 5 seconds until Reset Menu is displayed.
iii. Press the UP ARROW until TNR-HC is displayed.
iv. Press the OK button.
v. Press the UP ARROW to reset. The LCD will briefly display "Accepted".
vi. Close the front cover.
If the printer still doesn't work, try to reset the drum on the printer.