When the printer shows "Replace drum"or Drum end soon",please follow this video to reset your printer.

part one:For Printer with Without Screen Display

first:Open the top cover of the machine

second:Press and hold down the Go button for about 4 seconds until all the LEDs light up.Once all the LEDs are lit,release the Go button

last:Close the front cover.

part two:For Printer with Multi-line LCD

first.Open the front cover

second:Press Clear to reset the drum counter and Press the Up arrow key or 1 to reset the drum counter,When the LCD shows Accepted, close the front cover.