Supricolor Brand top quality ink cartridges compatible for hp 62xl
Use for Inkjet Printers :
compatible For HP Envy 5640 7640 5740
20ml for BK, 18ml for color
All the inkjet cartridge are 100% double post tested sternly one by one, and the second testings are conducted at least 7 days laterto ensure the stable superior quality.
Aging test:check the chemical stability, and make sure the storage can endure more than 2 years
Erosive test:check the PH value of the ink, and make sure the ink will not be harmful to the print head
Environmental test:test the functional stability under extreme conditions during shipping for acute temperature drop or increase, air pressure flotation, exposure to strong sun light in order to have the best effectiveness of printing
Waterproof test:test ink permeation to make sure there be no diffusion, no color deviation and no teeth like shape for printouts.
Adhesiveness test:Test the adhesiveness of the ink, and guarantee the durability of printouts
Printing test: check the normal function of an inkjet cartridge for no break line, no queer, no mixed color, no leakage and no color deviation in use.