iRAC5535i= Bk Drum: 458000 pages, CMY Drum: 373000 pages iRAC5540i= Bk Drum: 458000 pages, CMY Drum: 373000 pages iRAC5550i= Bk Drum: 485000 pages, CMY Drum: 393000 pages iRAC5560i= Bk Drum: 494000 pages, CMY Drum: 400000 pages
