E-234 To install a new toner cartridge, follow theinstructions included in the toner cartridge kit.5 Be sure to clean the LED array.! Drum and Toner are consumables and as suchare subject to a 90-day warranty onworkmanship.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, graphicsusually have higher density.• Higher print density means toner is used up faster.• At 5% print density, a toner cartridge will print anaverage of 2,000 pages. Remember, this is only anaverage. Actual results may vary.The first toner cartridge in your new printer has to fillthe drum reservoir and saturate the developing rollerwith toner. It’s normal that the first cartridge willproduce about 1,000 pages.Replacing the Image Drum CartridgeWhen the image drum reaches 90% of its life, theCHANGE DRUM message will display on your screen inthe Status Monitor if you have installed the printersoftware. Change the image drum cartridge when theprint becomes faint or begins to deteriorate. It’s a goodidea to keep a new cartridge on hand.1 You will need a new image drum cartridge (OKIPAGE10 and 12 Series Type 5 Image Drum Cartridge Kit,Part# 40433305) and a new toner cartridge(OKIPAGE 10 and 12 Series Type 5 Toner Kit, Part#52109001).2 Open the printer cover.LETTER LEGALA4OTHERENVREADYATTENTIONMAN FEEDDATA