Was trying to reset the toner of a Brother HL-4570CDW Paper Printer. Here's the step you can follow.

  1. Open the front cover of your Brother HL-4570CDW printer where you can access toner cartridges.
  2. Press the two buttons named Cancel and Secure on the printer panel simultaneously.
  • You will see K.TNR-STD on the printer screen)
  1. Press the + or - to select the toner colour you want to reset.
    • You will see <COLOR>.TNR-<CAPACITY> options.
      • K=Black, C=Cyan, M=Magenta, Y=Yellow.
      • STD=Standard, HC=High Capacity, S.HC=Super High Capacity
  2. Repeat as needed. Close cover when done.