This is a Compatible Konica-Minolta 4174-311 Laser Drum Unit guaranteed to perform with Konica Minolta Laser Printers. It replaces the original Konica-Minolta 4174-311 Laser Drum Unit. The compatible replacement 4174-311 Laser 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 4174-311 and offer high-quality printing results. Containing new parts including OPC drums, wiper blades, and other internal parts, they are an economical alternative to expensive OEM 4174-311 Konica-Minolta Laser Drum Units and supplies, and offer big savings over brand-name 4174-311 Laser Drum Units and supplies. Our Compatible 4174-311 Laser Drum Unit is a replacement for Konica-Minolta 4174-311 Drum Cartridge. The use of compatible replacement Laser Drum Units and supplies does not void Printer Warranty. We offer a Two Year 100% Quality Satisfaction Guarantee on our Compatible 4174-311 Laser Cartridges and supplies.For use in the Konica-Minolta Fax 1600, 2600, 2800, 3600, 3800 Laser Toner Fax Machines. For use in the following printers Fax 3800, Fax 3600, Fax 2800, Fax 1600, Fax 2600.