Brother LC30309BKS Ultra High Yield Black Ink Cartridge

Replace depleted black ink in compatible Brother INKvestment Tank inkjet printers with a dedicated ultra high yield cartridge. Black ink handles text, forms, invoices, reports, and other monochrome output produced by the printer's black channel. Keeping black separate from color supplies allows replacement of the consumed color without changing cyan, magenta, or yellow cartridges. This cartridge is rated for up to 6,000 pages under ISO/IEC 24711 measurement conditions. Its ultra high yield capacity is intended for environments that print recurring business documents, internal records, correspondence, and text-heavy reports. A higher-capacity black supply can reduce the frequency of cartridge replacement compared with standard-capacity consumables, while preserving the ink system required by supported INKvestment Tank printers. Brother LC30309BKS supplies black ink only, rather than combining multiple colors in one cartridge. That distinction matters when black text and grayscale documents make up most of the print volume, or when color cartridges are replaced on a different schedule. Install it in the black-cartridge position specified by the printer. The cartridge works within the Brother INKvestment Tank consumables system and is suited to offices, home offices, and small workgroups that need sustained black-document printing.