6.1M AINTAINING Y OUR P RINTERMaintaining Toner CartridgeTo get the most from the toner cartridge, keep the followingguidelines in your mind.• Do not remove the toner cartridge from its package until youare ready to use it. The shelf life of a cartridge in an unopenedpackage is approximately 2 years. The shelf life of a cartridgein an opened package is approximately 6 months.• Do not refill toner cartridges. The printer warranty does notcover damage caused by using a refilled cartridge.• Store toner cartridges in the same environment as the printer.• Do not remove a toner cartridge from the printer except toreplace it, clean it or clear a paper jam. Replace the cartridgeimmediately.• To prevent damage to the toner cartridge, do not expose it tolight for more than a few minutes.Toner cartridgestorageThe life of the toner cartridge depends on the amount of tonerthat print jobs require. When printing text at 5 % coverage, anew toner cartridge lasts an average of 8,000 pages. (But, thetoner cartridge supplied with the printer lasts an average of4,000 pages.)Toner cartridge lifeexpectancyAfter you install a new toner cartridge (see page 2.3), follow theinstructions included in the toner cartridge box to recycle the oldcartridge.Recycling tonercartridgeTo save toner, press the Toner Save button on the printercontrol panel. The button will be lit. You can also enable theToner Save Mode in your printer properties. Refer to “UsingToner Save Mode” on page 5.6. Selecting this option will expandthe life of the toner cartridge and reduce your cost per page, butwill reduce print quality.Saving toner