Storing SuppliesStoring Print MediaUse the following guidelines for proper print media storage. These help avoid paper feeding problems and uneven printquality.For best results, store print media in an environment where the temperature is approximately 21°C (70°F) and therelative humidity is 40%.Store cartons of print media on a pallet or shelf, rather than directly on the floor.If you store individual packages of print media out of the original carton, ensure that they rest on a flat surface so theedges do not buckle or curl.Do not place anything on top of the print media packages.Storing the Toner CartridgeStore the toner cartridge in the original packaging until you are ready to install it.Do not store the toner in:Temperatures greater than 40°C (104°F).An environment with extreme changes in humidity or temperature.Direct sunlight.Dusty places.A car for a long period of time.An environment where corrosive gases are present.An environment with salty air.Replacing SuppliesReplacing the Imaging DrumYou can determine approximately how full the imaging drum is by printing the printer settings configuration sheet. This helpsyou decide when you might need to order replacement supplies.To ensure print quality and to avoid damage to the printer, the printer stops operating after the imaging drum has reached amaximum of 30,000 pages. The printer automatically notifies you before the imaging drum reaches this point.While the printer may continue to function properly after the imaging drum has reached its official end-of-life, print qualitysignificantly decreases until the imaging drum stops operating at the maximum of 30,000 pages.NOTICE: When replacing the imaging drum, do not leave it exposed to direct light for an extended period of time.