Release the buttons. The internal memory will reset to factory default, which can sometimes clear temporary "toner exhausted" blocks if the chip still has minor life left.
Many users search for "firmware reset" to bypass the toner chip (allowing the use of cheap refills). Be cautious: firmware reset samsung m2020w free
Note: While many sites charge for these, some forums and communities occasionally share free "generics" or older versions. Proceed with caution when downloading from non-official sources. 2. Enter Download Mode (Forced Mode) Turn off the printer. Press and hold the . While holding WPS, press and hold the Power button . Release the buttons