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In this video we are going to show you how to clean the Corona Wires on a brother HL4570CW
or similar model printer. Start by opening the printer cover. Next, remove the drum toner
unit by carefully sliding it out until it stops. This engage the lever lock and remove
the drum toner unit by grasping the two handles raising the from of the assembly and lifting
it out of the printer. Next, remove all the toner cartridges by pushing forward on each
toner cartridge and lifting out of the drum unit. Under each toner cartridge, there is
a cover plate. One at a time, remove the cover plate to reveal the Corona Wire and the green
tab to the right. Press down on the green tab and slide it back and forth across the
unit. Repeat this 5-10 times to clean the Corona Wire. Return the tap back to its original
position. Be sure to slide the tab all the way to right until you hear the click. Snap
the cover back into place and repeat the process for the each of the remaining Corona Wire.
Last position can be a little tight but make sure the cover is properly snapped back its
place. Reinsert the toner cartridges one at a time into the drum unit by clicking them
back into place. Return the drum toner unit to the printer in a reverse matter. First,
position the unit in the open position then engaging locking lever. Slowly slide the drum
toner unit all the way in until you hear the click. Close the cover and the printer is
ready to use. For more information please visit us at www.tonerparts.com