Maintenance ScheduleEveryday Operations and Printer Care 3-41Replacement ScheduleThis item needs replacing... After... By...Cleaning roller Check fuser cleaningroller or Replacecleaning Roller displaysin the message window (after20,000 single-sided pages at5% coverage of each color).UserSee “Replacing the CleaningRoller” on page 3-25.Fuser oil bottle Check fuser oil &cleaning roller displaysin the message window (afterapproximately 12,000single-sided pages; however,fuser oil bottle life is mediadependent—coarser paperrequires more oil).UserSee “Replacing the Fuser OilBottle” on page 3-24.OPC belt cartridge Replace OPC displays in themessage window (maximumlife—120,000 planes*, usuallyoccurs with continuous use;minimum life — 60,000 planes,may occur with job sizesaveraging one page althoughother factors also affectcartridge life).UserSee “Replacing the OPC BeltCartridge” on page 3-21.Ozone filter Every 12 months. UserSee “Replacing the OzoneFilter” on page 3-28.Toner 14,000 single-sided pages—black; after 8,500 single-sidepages—yellow, magenta, cyan@ 5% coverage of each color.UserSee “Replacing a TonerCartridge” on page 3-19.Waste toner bottle Check Waste Tonerdisplays in the messagewindow (after 18,000single-sided pages.UserSee “Replacing the WasteToner Bottle” on page 3-27.Drum cleaner 240,000 single-sided pages. Authorized service provider.