PREMIUM QULAITY OF EPSON GENUINE BLACK TONER CARTRIDGES YIELDING 350 PAGES. COMPATIBLE PRINTERS (IF ANY): EPSON WORK FORCE 3620,EPSON WORK FORCE 3640,EPSON WORK FORCE 7610,EPSON WORK FORCE 7620,EPSON WORK FORCE 7710,EPSON WORK FORCE 7720,EPSON WORK FORCE 7725