To keep your printer working at its best, you should clean it several times a year.
Caution: Don't clean or remove the grease from the guide rails shown below.
Caution: Don't touch any gears inside the printer.
Never use a hard or abrasive brush, or alcohol or thinner for cleaning; they can damage the printer components and case.
Don't get water on the printer components and don't spray lubricants or oils inside the printer.
Don't use any cleaning sheets included with special paper; they may jam inside the printer.