ESTON 5-Slot Print Head Replacement for HP 564 Printhead CB326-30002 CN642A (1 Pack) What's in box :1 Pack 564 Printhead (5 slot) (CB326-30002 CN642A) Attention: This printhead is 5-Slot printhead, please ensure that you use 5 color 564 ink cartridges in your printer. Compatible printer list:HP Photosmart 7510 /7515/C5324 /C5370 /C5373 /C5380 /C5383 /C5388 /C5390 /C5393 /C5540/C5550 /C5570 /C5580 /C6324 /C6340 /C6350 /C6375 /C6380 /C6383 /C6388/C309/C410/C510 Customer service:1-Year Warranty and 100% Satisfaction Guarantee. We aims at the pursuit of optimal quality at affordable price. Guarantee::All product are manufactured with ISO9001 certified /Each ink cartridges process 100% printing test to ensure vivid and clear color image result