KINGJET 304XL Combo Pack (304 XL) Ink Cartridges for HP 304 — Black & Colour Replacement
Product description
The essentials
If your HP 304 cartridges are getting expensive (or you simply print often enough that the cost adds up), this KINGJET 304XL combo pack is aimed at the home-office, student, and family crowd who want higher-yield replacements. It’s a black and colour two-pack built for HP printers that take the HP 304 range, and it’s positioned as a like-for-like swap designed to keep your printer running without the usual hassle.
On paper, the “XL” part matters because it’s meant to stretch printing time between changes. The listing claims up to 750 pages for black and up to 450 pages for colour at 5% A4 coverage, and frames this as a cheaper cost per page versus standard cartridges.
Key features that matter in day-to-day printing

The biggest selling point here is straightforward: it’s a compatible replacement for HP 304 ink cartridges, supplied as a combo pack (black + colour) rather than one cartridge at a time. That usually suits households and small desks where you want fewer order cycles.
A second detail worth noting is the mention of updated smart chips for instant printer recognition. In real life, that’s often what separates a smooth replacement from an afternoon spent troubleshooting “cartridge not recognised” alerts.
The brand also points to anti-clog and anti-smudge/anti-fade performance. You can’t verify those outcomes without your own usage, but if you regularly pause printing for a while (students who print in bursts, or seasonal home admin), this is the sort of feature set that tends to be requested.
There’s also a stated direct replacement angle: it’s intended to match the original 304 cartridges, with the expectation that it won’t cause issues like warranty voiding (the listing explicitly mentions not voiding your printer warranty).



Tech specs
- Name: 304XL Printer Ink 304 XL Ink Cartridges Combo Pack (Black and Colour)
- Type: Replacement ink cartridges (combo pack)
- Capacity: Black up to 750 pages, Colour up to 450 pages (5% A4 coverage)
- Compatible cartridges listed: 3JB05AE, N9K07AE, N9K08AE, N9K06AE, N9K05AE
Where it shines (and what to double-check)
This pack is at its best if you print regularly and prefer buying a combo upfront, rather than changing cartridges one by one. It also makes sense if you want higher page yield to reduce how frequently you restock ink.

That said, there are a couple of realistic caveats. First, compatibility is listed for specific HP Envy and DeskJet model ranges, so if your printer model isn’t in that list, it’s safer to double-check before buying. Second, while the listing claims instant recognition thanks to smart chips, “cartridge recognition” can still be affected by printer firmware and how the printer behaves with non-genuine cartridges—so it’s worth being prepared for the possibility that you may need to reseat cartridges if your printer is picky.
As for print quality, the description leans on crisp text and vibrant colours, plus anti-clog technology for consistent flow after non-use. In most home-office scenarios that’s what people want, but if you’re doing colour-critical work (e.g., production-level photo prints), you may want to manage expectations compared with higher-end ink setups.
Best use cases vs. who should avoid it
It makes sense if you’re printing: - everyday documents in black (letters, school work, forms) - colour material occasionally (presentations, family photos at home, simple school projects) - enough overall volume that cartridge swaps are a recurring chore



It might not be the best match if you: - only print rarely and need ink that sits happily for long periods (anti-clog helps, but no cartridge is “set and forget” indefinitely) - need absolute certainty that your printer will recognise third-party chips perfectly every time - are unsure your printer really uses HP 304 / 304XL cartridges listed on the product
Getting the most from it
A simple way to get good results is to swap both cartridges when you’re switching over from low ink or inconsistent prints—this combo pack is designed to be used together. After fitting, run a test print so you can spot any nozzle issues early. If your household printers sometimes go weeks without use, a quick test page before you need important output can save you from discovering problems at the worst moment.
Also, check the cartridge codes (the listing includes several compatible cartridge part numbers). Matching the cartridge code is usually more reliable than matching only the printer model.

Mini FAQ
Is this a black and colour combo pack?
Yes. The pack is described as including a black cartridge and a colour cartridge together.
Will it work with my HP Envy or DeskJet?



The listing names several supported model series (HP Envy 5010/5020/5030/5032/5000 series and DeskJet 2600/2620/2630/3720/3750/3760/3762 series). If your exact model isn’t listed, it’s worth double-checking compatibility.
Does it help with cartridge recognition errors?
The product description specifically mentions updated smart chips for instant printer recognition and reducing “cartridge not recognised” errors.
How long should the ink last?
The listing claims page yields of up to 750 pages for black and up to 450 pages for colour, based on 5% A4 coverage for colour.
Final verdict
It’s worth considering if you’ve got an HP printer that takes the 304/304XL cartridges listed here and you want a higher-yield black and colour combo to cut down on replacement frequency. The “smart chip” and anti-clog claims are practical angles for home use, especially where printing happens in bursts.
However, don’t buy on autopilot: if your printer model or cartridge codes don’t match the ones in the listing, you may end up with recognition problems or a wasted purchase. For most people printing documents and occasional colour at home, this looks like a sensible value-for-money approach rather than a bargain-risk gamble.
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