This is a Compatible Toshiba TK10 (TK-10) Black Laser Toner Kit designed for use with Toshiba Laser Printers. It serves as a replacement for the original Toshiba TK-10 Laser Toner Cartridge. Manufactured 100% brand new, this economical alternative provides reliable performance and high-quality printing results. The use of compatible replacement Laser Toner Cartridges does not void your printer warranty. We offer a 100% Quality Satisfaction Guarantee on our Compatible TK10 Laser Toner Cartridges.