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Refilling Hewlett Packard HP 304XL (N9K08AE) Black Ink Cartridges

Refilling Hewlett Packard HP 304XL (N9K08AE) Black Ink Cartridges

Refilling the high capacity HP 304XL black ink cartridge at home is very easy and can offer you great results, with very little equipment. All you need is a syringe, plus some universal black ink. Simply remove the label, widen the fill holes (if necessary) and fill the relevant chambers of the HP 304XL ink cartridge with the amount of ink mentioned below.

When refilling the Hewlett Packard ink cartridge below, we recommend injecting the following amount of black ink into the hole closest to the cartridges’ printhead:

HP 304XL/N9K08AE: 8ml

This guide is intended purely to show where to inject the ink into these cartridges and how much we recommend using. For full refill instructions for these cartridges please click here.

HP 304XL Black Video Refill Guide


If you are looking to refill the ever popular HP 304XL black ink, these cartridges can be used in the HP Deskjet 2620, 2630, 2632, 2633, 2634, 3700, 3720, 3730, 3732, 3733 All-in-One, 3735, HP Envy 5020, 5030 and 5032 All-in-One inkjet printers.

Any further questions or comments, please get in touch via any of our social media platforms.

About the author

I have been involved in the printer industry since I was 18 and have been an employee of Refresh Cartridges since early 2009. I am a dedicated family man, gamer, music fan and friend to all. I write the majority of the content here on Igloo and am responsible for its upkeep.

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