Ensure that the printer is powered on. If the printer is not on, press the ON/OFF button.
Open the Paper Support, then pull out the Paper Support Extension.
Ensure that a number appears in the LED.
Take a sheet of A4 or Letter-sized plain paper. Fold the paper in half widthwise and then open it.
Load the folded sheet into the Rear Tray with the opened side facing up.
Press the <Menu> button eight times until [J] displays in the LED.
Press the [Black] or [Color] button. The machine starts bottom plate cleaning.
Note: Do not do other operations until bottom plate cleaning is completed.
Inspect the discharged paper. If ink can be seen on the paper, repeat the cleaning process.
If the discharged paper is still dirty after you have run this cleaning process three times, the inside of the machine is probably dirty. In this case, clean the inside of the machine using a swab.