INKMATE 1 Pack Remanufactured Print Head Replacement for HP564 5-Slot Printhead Used in HP Photosmart 5510 6510 5510-B111a B109a C5383 Printers Contents: 1* Pack 5-Slot Printhead CB326-30002 CN642A for HP564. Type: Not made by HP ( The Printing Effect as original). ATTENTION: Please make sure how many slots your old printhead has before the purchase. Compatibility List: HP 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; HP Photosmart Premium Printers & Touchsmart Web C309g C310a C410b Premium Fax C309a C309n C310b C410d Premium Fax C410a C310c. Our vows: we can provide a guarantee to every customers who purchased our products, once there are any problems, we will make all our efforts to help you and if you don't want to posses it , we can offer you the full refund.