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‎07-26-2026 01:52 PM

HP Recommended
Product: HP Smart Tank 725 All-in-One
Operating System: Microsoft Windows 11

Hello, I bought an HP Smart Tank 725, PN 28B51A. It's out of Warranty and as it doesn't recognize inserted printheads any more (could this be a problem following few weeks of n use?) I have to buy new ones. But there is confusion about the right replacement printheads.

I ordered 6ZA18AE colour printhead as listed as an adequate substitute and it turned to be different size, smaller than 3YP17A which was originally inserted. I suppose I have to look for 3YP17A? It's a shame I threw away the money for a wrong purchase based on information from official HP product sheet.

To replace the black printhead i need the 6ZA17AE or the X4E75A? Are they the same? There is no way to get X4E75A in my country and I'd not like to make the same expensive mistake again.

Best regards, Irena

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