Cleaning the machine923. Maintenance5Cleaning the insideDuring the printing process, paper, toner, and dust particles can accumulate inside the machine. This buildup can cause print quality problems, such as toner specksor smearing. Cleaning the inside of the machine clears and reduces these problems.• To prevent damage to the imaging unit, do not expose it to light for more than a few minutes. Cover it with a piece of paper, if necessary.• Do not touch the green area of the imaging unit. Use the handle on the imaging unit to avoid touching this area.• Use a dry lint free cloth when cleaning the inside of the machine, be careful not to damage the transfer roller or any other inside parts. Do not use solvents suchas benzene or thinner. Printing quality problems can occur and cause damage to the machine.• Use a dry lint-free cloth to clean the machine.• Turn the machine off and unplug the power cord. Wait for the machine to cool down. If your machine has a power switch, turn the power switch off beforecleaning the machine.• Illustrations on this user’s guide may differ from your machine depending on its options or models. Check your machine type (see "Front view" on page 21).• When opening a scan unit, hold the document feeder and scan unit together.
