On the Operator Control Panel or OCP, select MENU … Select>ADVANCED SETTINGS>CLEAN PRINTER>CLEAN LAM OVEN. Observe the OCP, and wait until the transfer temperature falls below 60 degrees C. Press the Laminator Cover Release Button, and open the Laminator Cover Then open the Laminator Bottom Cover. CAUTION: You may have to wait until the Heater Assembly can be handed comfortably. Remove the four thumb screws holding the Heater Assembly in place. Slide the Heater Assembly out of the Laminator. Remove the laminator Adhesive Cleaning Card from its protective cover. Press Next on the OCP. Insert the Adhesive Cleaning Card between the heater rollers. Pull the cleaning card all the way through the Heater Assembly. Turn the cleaning card over, and reinsert it between the heater rollers. Pull the cleaning card all the way through the Heater Assembly. When done, press Next. The OCP will return to the Clean Printer Menu. Slide the Heater Assembly into place. Use the Thumb Drive Tool … … to slowly rotate the lower gear until the Heater Assembly seats properly. Install and tighten the four thumb screws, and replace the Thumb Drive Tool. Close the covers.