... parts,fuser gear,presure roller,idler roller,roller tray,ink tube system,traling cable,registration assembly,swing plate,dulexer,maintance kit ... clutch gear,fuser cover,transfer roller,laser scanner,hard disk,ink supply staton and so on. Models as1000sseries,2100series,3000series,4000series, ... . Our purposeCustomers gain best products, best price . Transfer Roller for HP RM1-4279-000 printer cartridge