We offer LD remanufactured cartridges as well as original Hewlett Packard cartridges for your HP LaserJet 4 Plus printer. LD remanufactured replacement laser toner cartridges and supplies for your HP LaserJet 4 Plus are specially engineered to meet the highest standards of quality and reliability. Using our LD laser toners for your HP LaserJet 4 Plus printer will not void the printer warranty. All of our products come with a Two Year 100% Quality Satisfaction Guarantee. We also carry original Hewlett Packard laser cartridges which offer the quality that you can expect from HP and are backed by the standard HP warranty.