This is a professionally remanufactured Epson S020108 black ink cartridge, originally an Epson S189108 inkjet cartridge. It has undergone a thorough cleaning process, inspection, and refilling with the same ink formula. The cartridge features a reset ink monitoring chip for accurate ink levels and has passed rigorous testing standards. We offer a 100% Quality Satisfaction Guarantee on this remanufactured S020108 black ink cartridge.