Open the front cover of the printer.
Pull out the drum unit and toner cartridge assembly.
After you have just used the printer, some internal parts of the printer are
extremely hot! Wait for the printer to cool down before you touch the internal
parts of the printer.
Wipe the scanner window with a dry, lint-free cloth.
Put the drum unit and toner cartridge assembly back in
Close the front cover.
Plug the printer back in and turn on the printer power
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