OEM original inks allow LiqueColor to make the ease of transition from the factory cartridge to ours an easy one. True plug and play is possible with most of the products we sell. The color gamut is so precise that our customers can replace one cartridge at a time in their equipment and not notice a significant difference in the output color on their machines. Liquecolor Inkjet is a so confident in the result that we offer a full replacement or a 100% money back guarantee on all of our products from manufacturing defect.Whether it be HP, Canon, Roland, Okidata, Seiko, or Mimaki cartridges the Liquecolor chip controlling dispensing and volume of ink produces outstanding results. From the thousands of actual customer used cartridges, we have achieved a defect rate of only 2 per 1000. This rate is much lower than the OEM cartridges sold to these comparable printers. In addition we offer a money back guarantee for any cartridge not functioning because of manufacturing defect. No OEM of any kind offers this guarantee.