The Brother LC223 BK Black Ink Cartridge for MFCJ4420DW/MFCJ4620DW/J5620DW printers (550 pages) is an original Brother ink cartridge with water-based ink specifically formulated for Brother inkjet printheads, guaranteeing true colors and crisp text in both documents and photos printed at home or in the office. It comes in a sealed package ready to install, requiring no shaking or preparation before use, and has a built-in chip that allows the printer to monitor the ink level and provide advance warning when it is running low. It is suitable for replacing the original cartridge as soon as the printer indicates a need for refilling, maintaining print quality over time. This black version has an estimated yield of 550 pages according to ISO/IEC 24711 standards and is compatible with Brother MFC-J4420DW, MFC-J4620DW, and MFC-J5620DW multifunction printers. It is suitable for regular printing of text and documents in black and white on these models.