in this video we are going to show you howto replace dr310cl drum unit in a brother hl4570cdw printer. start by opening the printercover. follow the steps of inside printer label. next, remove the drum toner unit bycarefully sliding it out until it stops. this engages the lock lever and remove the drumtoner unit by grasping the two handles, rising the final assembly and lifting it out of theprinter. next, removing the individual toner
brother color laser printer cartridges, cartridges by pushing forward on each tonercartridge and lifting it out of the drum unit. remove the new drum unit from its packaging.remove all the yellow protective coverings from the drum unit. then we place the tonercartridges one at a time by inserting them into the drum unit and clicking them backinto place. return the drum toner unit to
the printer in the reverse matter. first,positioning the unit in an open position then
engaging the locking lever. slowly slide thedrum toner unit all the way in until you hear the click. turn on the printer, if the printerdoes not recognize the new drum unit. cycle the power, this time holding down the greengo button. for more information, please visit us at www.tonerparts.com