Carrot's compatible ink cartridges and supplies for Canon PIXMA iP4820 are designed to offer the best print performance, dependability and consistent yields that meet or surpass Canon OEM (Original Equipment Manufacturer) specifications for the Canon PIXMA iP4820 and offer high-quality output. These compatible ink cartridges are brand new and are a smart alternative to high-cost OEM Canon ink cartridges and supplies, offering substantial savings over the brand-name inkjet cartridges and supplies. Using compatible replacement ink cartridges and supplies for your Canon PIXMA iP4820 will not void your printer warranty. Carrot Ink guarantees 100% satisfaction on quality PIXMA iP4820 ink cartridges and printing supplies.