This is a Compatible Konica Minolta 4053-601 / TN310M Magenta Laser Toner Cartridge guaranteed to perform with Konica Minolta Bizhub C350, C351, and C450 Color Copiers. It Replaces the original Konica Minolta 4053-601 Laser Toner Cartridge. The compatible replacement 4053-601 Laser Toner Cartridges and supplies (also known as generic) are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM (Original Equipment Manufacturer) standards for the 4053601 Konica Minolta Laser Cartridge and offer high-quality printing results. Manufactured brand new, they are an economical alternative to expensive OEM 4053-601 Konica Minolta Laser Toner Cartridges and supplies, and offer big savings over brand-name 4053-601 Laser Toner Cartridges and supplies. The use of compatible replacement Laser Toner Cartridges and supplies does not void Printer Warranty. We offer a 100% Quality Satisfaction Guarantee on our Compatible 4053-601 Laser Toner Cartridges and supplies.