Epson EcoTank ET-8550 Ink Bottles
Your Epson EcoTank ET-8550 uses the T552 cartridge series, a six-colour continuous ink tank system designed to produce high-end creative and photographic output. Utilising both standard dye inks and specialized pigment black ink, this system allows for an incredibly wide colour gamut and exceptional contrast. Because it relies on high-capacity pourable ink bottles, you can replace individual colours as they run low. Keeping a complete set of replacements on hand ensures your colour-critical photo printing remains uninterrupted.
How long these T552 bottles last in real use
Yield consistency across colours is critical for this photo system. Epson determines the page output of these ink bottles using the ISO/IEC 29103 and 24712 standards, which are specifically designed to measure photo and graphic printing rather than simple text documents. The generous volume ensures a very low cost per print while maintaining continuous tone and gradient stability.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| C13T06V192 | Standard | Black | 6,700 | $0.004 |
| C13T06W192 | Standard | Photo Black | 6,700 | $0.004 |
| C13T06W292 | Standard | Cyan | 6,200 | $0.005 |
| C13T06W392 | Standard | Magenta | 6,200 | $0.005 |
| C13T06W492 | Standard | Yellow | 6,200 | $0.005 |
| C13T06W592 | Standard | Grey | 6,200 | $0.005 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage)
Choosing the right ink setup
For photographers and creative professionals who print high-volume, continuous graphic projects, keeping multi-pack bundles in the studio prevents sudden workflow interruptions. Free delivery applies on all orders over $99 (conditions apply). We ship orders from our local warehouses in Perth, Brisbane, Sydney, Melbourne, and Adelaide to ensure your studio does not run dry. You can find more options on the Epson Ink Cartridges page.
Pro Tip
When filling the ink tanks, be sure to match each bottle to its corresponding colour slot and nozzle type. Avoid overfilling the tanks past the upper limit line, as this can cause internal pressure issues and ink spills on your machine.
Frequently Asked Questions
Why does the photo printer use a grey ink bottle alongside standard colours? The addition of grey ink helps to reduce graininess in monochromatic prints and improves the smoothness of tonal gradations in black-and-white photography, preventing colour casts.
Does this printer use the pigment black and dye black simultaneously? No. The pigment black is used for plain paper text printing, while the photo black dye is reserved exclusively for glossy and matte photo papers. The machine switches automatically depending on the selected media type.
Can I mix T552 bottles with standard third-party liquids? No. Using unverified liquids will alter the viscosity of the ink, which can clog the internal printhead and void your hardware warranty.

