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The HP 973X Cartridge Combo Pack is a set of ink cartridges that gives you all colors right away. Print texts in good quality, and print color photos with bright and vivid colors. These cartridges let you print up to 7,000 pages in color. The original HP cartridges are specially designed for your HP printer. Check below to see which printers this ink cartridge is suitable for: Suitable printers PageWide Pro HP PageWide Pro 452dw HP PageWide Pro 452dwt HP PageWide Pro 477dn HP PageWide Pro 477dw HP PageWide Pro 477dwt Suitable for HP Instant Ink HP Instant Ink is a print plan that lets you print a fixed number of pages per month. You can cancel this plan every month, so you¿re not tied to anything. Your HP printer sends a notification to HP when the ink is almost empty. Then you automatically receive a cartridge that¿s suitable for your HP printer.