Part number / PN#: RK-4300 * HP LaserJet 4200/4300 Roller Kit w/ Instructions - Transfer Roller, Tray 1 Pickup Roller and 6 Feed/Separation Rollers. * This part is Genuine & Works in the hp 4200/4300 printer. * Parts are thoroughly tested, inspected for damage & defects and guaranteed 100% fully functional. * Standard shipping will go either UPS or Fed-Ex. Express Shipping Available