Sharp drum unit yield 18000 pages for al12171457 and 1555
Drum cartridge yields approx 18 000 pages for models al 1000 al 1010 al 1020 al 1041 al1200 al 1215 al1220 al1250 al 1340 al 1451 al 1551 al 1530cs al 1540cs al 1551cs al 1631 al 1641cs al 1642cs al 1651cs and al 1661cs replacement