EnglishUser’s Guide17TonerWhen to replace toner cartridgeReplace the toner cartridge after TONER LOW dis-plays in the control panel LCD. After TONER LOWdisplays, the printer prints about 100 more pages, thendisplays TONER EMPTY and stops printing. Printingresumes after a new toner cartridge has been installed.CAUTION:The use of original toner or toner cartridges is highlyrecommended. Using compatible or counterfeit toner ortoner cartridges can seriously damage the printer.Toner cartridge lifeHow long your toner cartridge lasts depends on theprint density; the percentage of the page that printsblack. A typical letter has 3% to 5% print density;graphics usually have higher density. Higher print den-sity means toner is used up faster. At 5% print density,a toner cartridge will print an average of 4000 pages.Remember, this is only an average: actual results mayvary.The first toner cartridge installed in a new printer has tofill the image drum reservoir and saturate the develop-ing roller with toner. This filling of the image drum res-ervoir reduces the number of pages produced from thefirst toner cartridge.Replacing toner cartridgeWARNINGBe careful when handling the toner cartridge. Do not lettoner spill on your clothing or other porous materials.1. Open the cover and remove the used toner car-tridge.2. Shake the new toner cartridge to evenly distributetoner.3. Unwrap the new toner cartridge and carefullypeel off the sealing tape.