Printer ink is, by volume, one of the most expensive liquids on earth. This is not an exaggeration — genuine HP ink works out to somewhere around £13,000 per litre when you do the maths on a small cartridge. It's a business model the manufacturers perfected long ago: sell the printer cheaply (or at a loss), then lock you into buying their cartridges forever.
The obvious question is whether you have to play along. Third-party and compatible ink cartridges have been around for years, sold for a fraction of the genuine price, and the quality has improved significantly over the past decade. But there are also genuine horror stories — ink that corroded print heads, cartridges that refused to be recognised, printouts that smeared within a week.
I decided to find out where the truth actually sits. Over six months, I tested eight different brands of compatible cartridges in three different printers: an HP DeskJet, an Epson EcoTank (using refill ink, not cartridges), and a Canon PIXMA. The tests covered print quality on both text and photos, page yield compared to the stated figures, and long-term reliability.
What "compatible" and "remanufactured" actually mean
Before getting into the results, it's worth being clear on terminology, because not all third-party cartridges are the same. A compatible cartridge is a brand-new cartridge built by a third-party manufacturer, designed to the same specifications as the original. These are made from scratch, not from recycled parts.
A remanufactured cartridge is an original cartridge that has been collected, cleaned, refilled with new ink, and resold. The quality of remanufactured cartridges varies enormously — it depends entirely on how carefully the refurbishing was done and how many times the cartridge has already been through this cycle.
Then there's refill ink, which is separate entirely — bottles of ink you use to manually fill empty original cartridges using a syringe. This is the most cost-effective option by far, but also the messiest and most likely to go wrong if you use the wrong ink formulation.
Print quality: generally fine for text, mixed for photos
For everyday text printing — letters, invoices, reports — the honest answer is that good compatible cartridges are indistinguishable from genuine ones in daily use. Text was sharp, blacks were deep, and the output held up well over time. Six out of the eight brands I tested performed acceptably for text.
Photo printing is a different story. The gap between genuine ink and even good compatible ink becomes visible when you're printing photos, particularly in skin tone accuracy and shadow detail. Two of the brands I tested produced photos that looked noticeably flat — duller colours and less defined shadows than the same image printed with genuine cartridges. One brand, despite being mid-priced, actually came closest to the genuine ink output on photos and was only clearly inferior when prints were examined side by side under good light.
If you print photos seriously — for framing, for clients, for anything where quality actually matters — I'd stick with genuine ink or invest in a dedicated photo printer. For casual photo printing, a good compatible cartridge is probably fine.
Page yield: the stated figures are optimistic
Every cartridge — genuine or compatible — comes with a stated page yield, typically something like "up to 300 pages". These figures are based on printing pages that are 5% covered (the ISO standard for these measurements), which is about what a page of mostly-blank business letter looks like. Nobody prints like that.
In my tests, with normal mixed-use printing (documents with some headers and charts), genuine cartridges typically got to about 65-70% of their stated yield before running low. The compatible cartridges I tested ranged from about 50% to 80% of their stated figures. Two brands significantly overstated their yields, running out much earlier than claimed. One brand actually outperformed its stated figures, which was a genuine surprise.
The brands I tested and what happened
| Brand Type | Text Quality | Photo Quality | Yield Accuracy | Overall |
|---|---|---|---|---|
| Budget compatible (unnamed) | Poor | Poor | 50% of stated | Avoid |
| Mid-range compatible A | Good | Acceptable | 65% of stated | Decent |
| Mid-range compatible B | Good | Good | 75% of stated | Recommended |
| Premium compatible | Very good | Acceptable | 80% of stated | Good value |
| Remanufactured (set 1) | Acceptable | Poor | 55% of stated | Not recommended |
| Remanufactured (set 2) | Good | Acceptable | 68% of stated | Adequate |
The one that caused real damage
I want to be direct about this because it matters. One of the budget compatible cartridges I tested — bought from an online marketplace for a fraction of the genuine price — caused a noticeable deterioration in print quality that persisted even after I switched back to genuine cartridges. After running several cleaning cycles, the print quality partially recovered, but the right-hand edge of prints retained a slight streak for several weeks.
I can't say with certainty that the cartridge caused physical damage to the print head, but the timing was clear. This is a real risk with the cheapest possible compatible ink — some of it uses inferior ink formulations that can clog or partially corrode print heads. Print heads on inkjet printers are expensive to replace and are sometimes not available as user-replaceable parts.
What the manufacturers say — and what's actually legally true
HP, Epson and Canon all warn, with varying degrees of drama, that using non-genuine ink will void your warranty or damage your printer. This is a common concern, and it's worth being clear about what the legal reality is in the UK and Europe.
Under EU and UK competition law, manufacturers cannot void your printer warranty simply because you used a compatible cartridge or third-party ink. They can refuse warranty service if they can prove the third-party ink caused specific damage — but the burden is on them to prove that. Simply using compatible cartridges is not grounds for warranty refusal.
In the US, the Magnuson-Moss Warranty Act works similarly — manufacturers cannot make warranties conditional on using their own consumables unless they provide those consumables for free.
The honest verdict
Bottom line on third-party ink
Good compatible cartridges from reputable brands are genuinely worth using for everyday text and document printing — you'll save real money with minimal quality difference. For photos or anything where output quality really matters, stick with genuine ink. And whatever you do, don't buy the cheapest possible option you can find — the small saving isn't worth the risk of damaging your print head.
One more thing worth knowing: if your printer uses individual colour cartridges (one each for cyan, magenta, yellow, and black, rather than a single combined colour cartridge), you can save money on just the colours you use most. Many people find they burn through black ink far faster than the colours, so replacing only the black with a compatible cartridge while keeping the colour cartridges genuine is a reasonable middle-ground approach.
The printer ink market is designed to extract maximum money from you over the lifetime of your printer. With a little knowledge, you can navigate it more sensibly — without gambling your hardware on the cheapest cartridge you can find.