Epson EcoTank Workforce ET-4500 Ink Bottles
Your Epson EcoTank Workforce ET-4500 uses the T664 ink bottle series, which we have actively supplied since Nov 2016. This four-colour refillable system features individual black, cyan, magenta, and yellow ink reservoirs rather than standard cartridges. Our 4.8 Google rating reflects a long-standing track record of premium cartridge performance. Because these ultra-high-capacity bottles are rarely replaced, users typically experience extended intervals between refills, making collective replenishment via bundle packs the most sensible choice to maintain complete colour readiness.
Expected page output and replacement cycles
Page yields for this continuous ink system are measured using the international ISO/IEC 24711 standard for colour inkjet systems. Because these reservoirs hold a substantial amount of fluid, standard office use will result in thousands of printed pages before any single colour runs low.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| C13T664192 | Standard | Black | 4,000 | $0.004 |
| C13T664292 | Standard | Cyan | 6,500 | $0.003 |
| C13T664392 | Standard | Magenta | 6,500 | $0.003 |
| C13T664492 | Standard | Yellow | 6,500 | $0.003 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Choosing between genuine and compatible options
Under Australian Consumer Law, using compatible cartridges does not void your printer warranty. This means you can choose our budget-friendly compatible ink bottles as an alternative to genuine supplies without compromising your printer protections. To see a detailed breakdown of how third-party refills stack up against brand-name products, read our comprehensive genuine vs compatible cartridges analysis.
Best way to stock these ink bottles
If you print mainly text documents, you will consume the black ink reservoir significantly faster than the individual colours, making individual black bottles a regular priority. If you print heavy graphics or presentation slides, purchasing full multi-pack bundles is the smartest choice to keep all colours balanced simultaneously. All compatible options are covered by a full money-back guarantee via our returns policy if you encounter any performance issues. Free delivery applies on all orders over $99 (conditions apply), with all orders shipped rapidly from our local distribution facilities in Perth, Brisbane, Sydney, Melbourne, and Adelaide. To explore the wider range of options for this brand, check out the main Epson ink bottles store page.
Pro Tip
Always wait until the ink level drops below the lower line on the physical tank window before refilling, but never let it run completely dry, as injecting new ink into an empty line can introduce air bubbles that disrupt the thermal firing nozzles.
Frequently Asked Questions
Can I mix genuine Epson T664 bottles with compatible T664 bottles in the same printer?
Yes, each ink tank is completely independent, meaning you can refill individual colours with compatible ink while keeping genuine ink in the remaining reservoirs without causing chemical reactions or print issues.
Why does my colour ink decline over time if I only print black text documents?
The printer uses small amounts of cyan, magenta, and yellow ink during regular automated printhead maintenance cycles to keep the nozzles hydrated and prevent permanent blockages in the printing lines.
How do I safely store opened T664 ink bottles if I didn't use the entire volume?
Ensure the nozzle cap is twisted tightly onto the bottle and store it upright in a cool, dark cupboard; properly sealed bottles will keep their composition stable for several months for future top-ups.
