The SCC Universal Toner Refill Powder provides a practical way to replenish black ink in a wide range of Brother cartridges. This 1kg supply of black powder is designed for versatility, supporting numerous models including the TN-135BK, TN-2000 series, TN-2100 series, and the TN-3000 through TN-8000 ranges, as well as the TN-6300 and TN-7600 series. Because of the generous volume, this refill kit is well-suited for users who print frequently and want to avoid the cost of replacing entire cartridge housings. By manually refilling compatible units like the TN-2210 or TN-3290, you can maintain your printer's productivity while reducing the amount of plastic waste generated by disposable cartridges.