This professionally remanufactured Epson Black (T043120) inkjet cartridge is an original Epson T0431/T043120 ink-jet cartridge which has been through one cycle of service and has been recharged. This Epson Black T043120 ink cartridge has been thoroughly cleaned along with the printhead nozzles. Then the Epson T043120 was filled with the same ink formula, the internal back pressure was insured and then it was inspected for any possible shell leakage, tested the operation of all electrical circuitry and finally run through an actual print test. The ink monitoring chip on this remanufactured Epson T043120 is the original chip which has been reset to provide accurate ink monitoring. If the T0431 Black inkjet cartridge passes our rigid standards, it has been remanufactured for your Epson printer! We offer a 100% Quality Satisfaction Guarantee on our Remanufactured T043120 Black ink cartridge.