4. Wipe the underside of the scanner lid and white bar until it is clean and dry.5. Close the scanner lid.Storing the Toner cartridgeToner cartridges are sensitive to light, temperature, and humidity. Follow these recommendations to ensure optimumperformance, highest quality, and longest life from your new Dell toner cartridge.Store this cartridge in the same environment as the printer it will be used in; this should be in controlled officetemperature and humidity conditions. The toner cartridge should remain in its original, unopened package untilinstallation – If original packaging is not available, cover the top opening of the cartridge with paper and store in adark cabinet.Opening the cartridge package prior to use significantly shortens its useful shelf and operating life. Do not store on thefloor. If the toner cartridge is removed from the printer, always store the cartridge:Inside the protective bag from the original package.Store lying flat (not standing on end) with the same side facing up as if they were installed in the machine.Do not store the toner inTemperature greater than 40 °C (104 °F).Humidity range less than 20% and not greater than 80%.An environment with extreme changes in humidity or temperature.Direct sunlight or room light.Dusty places.A car for a long period of time.An environment where corrosive gases are present.An environment with salty air.Handling instructionsDo not touch the surface of the photosensitive drum in the cartridge.Do not expose the cartridge to unnecessary vibrations or shock.Never manually rotate the drum, especially in the reverse direction; this can cause internal damage and tonerspillage.Use of non-Dell and refilled toner cartridgeDell does not recommend or approve the use of non-Dell brand toner cartridges in your printer including generic,store brand, refilled, or remanufactured toner cartridges.Dell’s printer warranty does not cover damage to the machine caused by the use of a refilled, remanufactured,or non-Dell brand toner cartridge.Estimated cartridge lifeEstimated cartridge life (the life of the toner cartridge yield) depends on the amount of toner that print jobs require.The actual print-out number may vary depending on the print density of the pages you print on, operatingenvironment, printing interval, media type, and/or media size. For example, if you print a lot of graphics, theconsumption of the toner is high and you may need to change the cartridge more often.Tips for moving & storing your machineWhen moving the machine, do not tilt or turn it upside down. Otherwise, the insides of the machine may becontaminated by toner, which can cause damage to the machine or bad print quality.You require at least two people to move the machine.