-compatitable,stable quanlity,100% test -long time durabling,favourable price -warranty for 3 month -original ... spare parts,fuser gear,presure roller,idler roller,roller tray,ink tube system,traling cable,registration assembly,swing plate,dulexer, ... clutch gear,fuser cover,transfer roller,laser scanner,hard disk,ink supply staton and so on.Models asHP1000sseries,2100series,3000series,4000series ...