samsung scx 4521 reset process

samsung scx 4521f reset process:-

1. Press the "MENU" option followed by "#" and enter the code "1934".(rapidly)
2. The screen should display the word "READY"
3. Move with the arrows until you find the option "NEW CARTDRIGE"
4. Choose "YES" by pressing "OK"
5. Press again the key "OK"
6. Turn the printer off to restart the machine.