Epson EcoTank ET-4810 Ink Bottles
Your Epson EcoTank ET-4810 uses the T522 ink bottle series. We have been supplying consumables for this printer since Jul 2023, supporting its high-capacity refillable reservoir system. Instead of traditional plastic cartridges, this model relies on vacuum-sealed bottles designed with a unique keyed nozzle for mess-free refilling. Users typically observe that while the black ink is replenished more frequently for document work, the three colour bottles provide a massive volume of prints before needing attention. This refill behaviour significantly reduces waste and the frequency of ordering compared to traditional ink systems.
Page output and replenishment cycles
The T522 ink bottles are designed for the high-volume nature of the EcoTank system. Page yields are calculated by Epson using the ISO/IEC 24712 test suite, which reflects a standard document mix. Because these bottles contain significantly more liquid ink than a standard cartridge, the time between refills is vastly extended. For a home office environment, this means the cost per page remains exceptionally low, provided the printer is used frequently enough to keep the ink flowing through the internal tubes.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| C13T00M192 | Standard | Black | 4,500 | $0.004 |
| C13T00M292 | Standard | Cyan | 7,500 | $0.003 |
| C13T00M392 | Standard | Magenta | 7,500 | $0.003 |
| C13T00M492 | Standard | Yellow | 7,500 | $0.003 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Maintenance and system health
In addition to the T522 ink bottles, your Epson EcoTank ET-4810 features an internal delivery system that requires occasional monitoring. Since the ink sits in large reservoirs, maintaining a consistent seal at the refill caps is vital to prevent the ink from drying out. If you notice gaps in your printouts, it is often related to air in the lines rather than a lack of ink.
Experience Tip: When refilling, ensure you insert the bottle completely into the keyed tank opening and let it gravity-feed; never squeeze the bottles, as this can introduce air bubbles into the print head.
Choosing your refill setup
For users focusing on administrative documents and text, keeping spare T522 Black bottles on hand is the most efficient strategy. If you print marketing materials or colourful school projects, the T522 Value Packs are the best way to maintain a full set of Cyan, Magenta, and Yellow. While we stock genuine Epson bottles for this system, all our products are backed by a money-back guarantee. View our full Returns policy for more information.
Free delivery applies on all orders over $99 (conditions apply). We dispatch daily from our distribution centres in Brisbane, Sydney, Melbourne, Perth, and Adelaide to ensure your Epson ink bottles reach you promptly.
Pro Tip
Do not wait until the tanks are completely empty to refill them. Running a thermal inkjet print head without ink can cause permanent damage. We recommend refilling as soon as the ink level hits the lower line on the physical tank window.
Frequently Asked Questions
Can I use T542 or other EcoTank bottles in my ET-4810?
No, you must stick to the T522 series. Epson "keys" the top of each bottle differently. The T522 bottles have a specific physical shape that acts like a key to open the valve on your ET-4810 tanks. Other series will not fit the slot, preventing the ink from flowing and protecting you from accidentally mixing incompatible ink types.
Why is my black ink lasting less time than the colour bottles?
The T522 Black bottle contains a different ink volume and is used more heavily in standard "Auto" or "Grayscale" printing modes for text. Furthermore, the printer performs periodic maintenance cycles that consume a small amount of ink from all tanks to keep the nozzles primed. Because black is the primary base for almost all documents, its depletion rate is naturally higher.
How long can I leave the ink in the tanks if I am not printing?
While the T522 ink bottles are shelf-stable for a long time when sealed, the ink inside the printer tanks should ideally be used within six to twelve months. If the printer sits idle for too long, the pigment can settle or the ink in the narrow delivery tubes can thicken. We suggest printing a nozzle check at least once a fortnight to keep the system healthy.
