Brand new, unused item! Of course, it's within the expiration date. 1. Product Contents: LC412-5PK 4-color 5-piece set compatible ink cartridge, latest IC remaining ink level display chip, LC412 ink, LC412BK 2X Black / LC412C 1X Cyan / LC412M 1X Magenta / LC412Y 1X Yellow, 1 each, for a total of 5 pieces. Compatible ink cartridges, an alternative to the original LC412 LC412BK LC412C LC412M LC412Y LC412XL LC412XLBK LC412XLC LC412XLM LC412XLY ink cartridges. 2. Compatible Models: Brother J7300CDW MFC-J7300CDW, J7100CDW MFC-J7100CDW printers. Page Yield: Standard capacity, black is about 10.5ml, color is about 6.5ml. Number of printed pages: Black: about 350 pages, Color: about 350 pages, with 5% coverage, A4 paper, letter. (ISO/IEC standard). 3. Supports the latest IC remaining ink level display & all-color pigment ink: Equipped with the latest IC remaining ink level display chip, it supports the ink level display function. It maintains the vivid colors of the first print for a long time after printing. 4. Notes: If the ink cartridge does not work even after installation, the printer may display a message "Ink cartridge needs to be replaced" or an error code "X". This phenomenon indicates that the serial numbers of the cartridge chips may be duplicated. In such cases, remove the ink cartridge once and reinstall it. This will update the serial number, and the ink cartridge should work normally. 5. High-quality materials: Using high-quality ink, plastic cartridges, and data chips, ensuring clear images and sufficient page yield. Clear printing effect: Prints clear images where every word and line is clearly visible, creating a relaxing visual effect for the eyes. You can easily handle printing designs, vibrant posters, pamphlets, photos, drafts, etc., in the office or at home.