This is a compatible black ink cartridge for Sharp printers, specifically the AJ-T20B model. Manufactured to meet ISO-9001 specifications, it ensures reliable performance comparable to the original Sharp AJ-T20B ink cartridge. Designed as a 'double sized' cartridge, it provides a cost-effective solution for high-volume printing. While the exact page yield is not specified, it is built for standard yield usage, making it an economical choice for your printing needs.