THEY ARE PRODUCED BY A DIFFERENT SUPPLIER THAN THE "NON ECO" SERIES. 12 MONTH WARRANTY! Compatible Printers: RicohAFICIO SP 3400N, 3400SF, 3410N, 3410SF, 3410DN. BLACK ECO SERIES COMPATIBLE SP3400 TONER FOR RICOH AFICIO SP 3400N,3400SF,3410N,3410SF Type SP3400HE CAPACITY 5,000 PAGES.
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