HP Envy 7640 printer ink products are available to buy today from Cartridge Shop complete with a 100% Satisfaction Guarantee. NFC technology means you can print from compatible devices via a single touch and there are mobile printing options available so you can access the HP Envy 7640 from anywhere in the home or office. The HP Envy 7640 possesses an 8.89cm colour touchscreen so you can work your way through the various settings whilst there's the added bonus of a 25-page Automatic Document Feeder. Below is the Cartridge Shop range of HP Envy 7640 e-All-in-One Ink Cartridges and Printer Ink. HP Instant Ink are ink and toner monthly subscriptions where you can get ink or toner, plus hassle-free delivery and cartridge recycling, all starting at. The XL ink cartridges available on this page from Cartridge Shop will also help your printing go further. Ink for HP Envy 7640 e-All-in-One LD Remanufactured Black & Color Ink Cartridges for HP 62XL LD Remanufactured C2P05AN / 62XL HY Black Ink for HP LD. HP Envy 7640 e-All-in-One Ink Cartridges and Printer Ink. This can be handy if you regularly print documents in relatively high volumes. This auto duplexing feature will help you minimise the amount of paper you waste by utilising both sides of the page. Used in the home to produce photo prints and text documents, the HP Envy 7640 is a high quality device which can print double-sided.