General InformationXerox Internal Use Only Phaser 3330 and WorkCentre 3335/3345Service Manual1-35Maintenance ItemsRoutine maintenance items are parts or assemblies that require periodic replacement. These items aretypically customer replaceable (CRU).The listed items have limited life and require periodic replacement.Print life is based on “typical” office printing and 5% coverage per color on 24 lb. paper. Print lifefigures are not guaranteed and varies depending on usage habits. Imaging Unit print life is based on 3-page jobs using letter-size paper. Less than 3 page average run length has an adverse effect on yield.ConsumablesConsumables consist of a Toner Cartridge and a Drum Cartridge. The machine ships with a startertoner and drum cartridge.The system has a CRUM (Customer Replaceable Unit Monitor) to record regional and toner usageinformation. The CRUM maintains a count of the amount of toner consumed. When the count reachesset values, warning and error messages appear to notify the user when near and end of life status isreached.Note: Life ratings are based on A4 or A-size sheets at 5% coverage.Note: Starter capacity cartridges are packaged with the printer when shipped from the factory.These starter cartridges are not available for order.Standard, high-capacity, and extra high-capacity Toner Cartridges are available for ordering.Additional Drum Cartridges are also avaiable for ordering. See Consumables and Maintenance Itemsfor a Toner Cartridge and Drum Cartridge life and ordering information.Item Print LifePick Up Roller (Tray 1) Up to 60,000 pagesPick Up Roller (Optional Tray 2) Up to 100,000 pagesRetard Roller (Tray 1) Up to 60,000 pagesRetard Roller (Optional Tray 2) Up to 100,000 pagesTransfer Roller Up to 100,000 pagesADF Separator Pad Assembly Approximately 20,000 sheetsDADF Feed Roller Assembly Approximately 20,000 sheets