Turn off the printer power switch and then unplug the printer.

Pull the paper tray completely out of the printer.

Tightly wring out a lint-free cloth soaked in lukewarm water, and then wipe the separator pad (1) of the paper tray with it to remove dust.

Wipe the two pick-up rollers (1) inside of the printer to remove dust.

Put the paper tray back in the printer.

Plug the printer back in, and then turn on the power switch.