Printer keeps showing 'Replace Toner' message after installing the Cartridge - Brother TN-1030/1050
1) Switch-off the printer
2) Press and hold the on/off button
3) When all the LEDs turn on, open the cover and remove the toner cartridge + drum unit
4) Release the on/off button
5) Re-install the toner cartridge + drum unit back into the printer and close the printer cover
6) Press on/off button twice and wait for 2 seconds
7) Press on/off button 6 times
8) Now printer is ready for printing