THEY ARE PRODUCED BY A DIFFERENT SUPPLIER THAN THE 'NON ECO' SERIES. 12 MONTH WARRANTY!Compatible Printers:Oki B 410 D, 410 DN, 430 DN, 440 DN, MULTIFUNCTION MB 460, MB 470, MB 480. BLACK ECO SERIES COMPATIBLE TONER B410 TONER FOR OKI B 410,430,440,460,470,480 43979102 3,500 PAGES.
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