INKMATE make your life colorful ! Package contents: ? 65XL | Ink Cartridge | Black | N9K04AN 1pack ? 65XL | Ink Cartridge | Tri-color | N9K03AN 1pack Compatible Printer Models: ? DeskJet Series ?DeskJet 2622 / 3755 / 3720 / 3752 / 3721 / 2624 / 3722 3758 / 3723 / 2652 / 3730 / 2655 / 3732 ? Envy Series ?ENVY 5055 / 5058 / 5052 / 5010 / 5012 / 5020 / 5030 ? AMP Series ?100 / 120 / 125 Tips£º ?Remove the black cover outside. ?Remove scotch tape. (Do not touch copper contacts and nozzles.)What if the 65XL ink cartridge doesn't print as well? ? Realign the printheads and activate the printhead cleaning function.What should I do if the printer receives "out of ink / almost out of ink / ink cartridges are not recognized"? ? Remove the affected 65 XL ink cartridge, carefully wipe the chip with an eraser / alcohol swab and reinsert it.How to contact us: ? PC: Go directly to the "INKMATE" store.> Click on "Question".> Log into your Amazon account ?Mobile: Log in to your Amazon account.> Find "INKMATE Orders" and click "Contact Seller". Or go straight to the INKMATE shop> Search and click About Seller> Contact Seller