The Victor Inkjet Calculator offers a dynamic ink delivery system, ideal for handling business on the go. Each Genuine and Remanufactured HP Inkjet cartridge has a space saving design which easily installs, to reduce downtime normally spent on complicated replacement procedures. The Remanufactured and OEM/ Genuine HP 51604A black thermal inkjet cartridges, the Genuine HP 51605B blue inkjet cartridges, and the Genuine HP 51605R red inkjet cartridges have the power and durability to tackle the most demanding print tasks. The Victor Inkjet calculator printer also contains thermal pigments, which minimize smudging and blurring. We guarantee excellent print quality with our Genuine and Remanufactured HP inkjet cartridges or we will refund your money within 90 days of purchase. And all of our HP ink cartridges for your Victor Calculator have up to a 2 year shelf-life for definitive performance and convenience.