YATUNINK 5 Pack Remanufactured 564XL Ink Cartridge And Printhead Replacement Photosmart 6510 6520 7510 7520 Printer ATTENTION: this is a 5 SLOT print head, please make sure how many slots your old printhead has before the purchase. Page yield (Black) : 550 pages per cartridge, at 5% coverage; Page yield (Color) : 750 pages per cartridge, at 5% coverage Condition: Cartridges are sold in individually sealed packages - Volume of ink is equal to OEM - ISO 9001 certified manufacturer Work with Photosmart Printers 7510 C5324 C6324 D5400 eStation C510a 7515 C5370 C6340 D5445 Plus-B210b 7520 C5373 C6350 D5460 7525 C5380 C6375 D5463 7510-C311a C5383 C6380 D5468 7515-C311a C5388 D7560 B110c C5390 B8550 C5391 C5392 C5393; Photosmart Premium Printers & Touchsmart Web C309g C310a C410b Premium Fax C309a C309n C310b C410d Premium Fax C410a C310c (The items that you are buying is(are) compatible with the above printer models. If you do not see your printer model in the list or you are not sure if your printer works with the ink cartridge(s) or not, please email us to ask)