When to Replace the Cartridge 8-5Maintenance83 Reinstall the cartridge in the machine.4 Make a few test copies.● If the copies appear normal:You can keep using the cartridge. However, a new one will be needed soon.● If white streaks or light bands are still present:❑ Replace the cartridge with a new one.For details on how to replace the cartridge, see "Replacing the Cartridge," on p.8-14.Print YieldThis section describes the approximate number of printouts that can be made percartridge.Approximate Print YieldCanon Cartridge X25: Approx. 2,500 printouts (A4 at 4% dot coverage*).* The term "A4 at 4% dot coverage" denotes a document on which the area coveredwith toner is 4% of the total area of an A4-size sheet.• The actual number of printouts that can be made per cartridge depends in part onthe exposure setting, room temperature, and humidity.• If you print a large number of documents which contain heavy print or manyphotographs, toner consumption will increase, and white streaks will appear onprintouts sooner than indicated above. Toner consumption will also increase if youprint with the ADF left open.• If you print small size documents or documents with less dot coverage, you maybe able to print more sheets of paper than indicated above. However, dark bandsmight appear on printouts if you keep using the same cartridge for an extendedperiod of time.
