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If the printed paper comes out with white lines or text is blurred, clean the LED head with an LED lens cleaner. An LED lens cleaner comes with the machine and with new drum units.
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Do not use chemical cleaners or organic solvents such as thinners or benzine.
Turn off the main power switch and unplug the power cord.
Pull out the plug from the socket. Remove all the cables from the machine.
Push the button on the right side of the machine, and then open the front cover with both hands carefully.
Hold the toner cartridge's front handle to lift and pull it out.
While pressing the lever with one hand as far as it goes, wipe the lens on the bottom of the LED head softly with an LED lens cleaner.
When you press the lever all the way in, the LED head comes down.
When cleaning the LED lens, be careful of protruding objects around it.
Touching the surface of the LED lens may result in abnormal images. Do not touch it.
Hold the handle of the cartridge, and then insert it into the machine until it stops.
Close the front cover with both hands carefully.
Securely insert the plug of the power cord into the wall socket securely. Connect all the interface cables that were removed.
Turn the main power switch on.
