This professionally remanufactured Epson Yellow (T078420) inkjet cartridge is an original Epson T0784/T078420 ink-jet cartridge which has been through one cycle of service and has been recharged. This Epson Yellow T078420 ink cartridge has been thoroughly cleaned along with the printhead nozzles. Then the Epson T078420 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 T078420 is the original chip which has been reset to provide accurate ink monitoring. If the T0784 Yellow inkjet cartridge passes our rigid standards, it has been remanufactured for your Epson printer! We offer a 100% Quality Satisfaction Guarantee on our remanufactured T078420 ink cartridge.