TonerStore.com started in 1990 and manufactures most of its products right here in the USA. Rather than just replacing the most common components inside the cartridge, we rebuild the entire laser toner with the highest grade replacement toner, photoconductor drum, wiper blade and other materials. All cartridges are tested and sample prints inspected. A proven 15-step process is used to produce identical or superior quality to the original equipment manufacturer. Our customer service department is ready to take your call with any questions or to assist with placing an order. Your satisfaction is Guaranteed 100%.