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 four 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.