Epson EcoTank Expression Premium ET-7700 ET-7750 Ink Bottles
Your EcoTank Expression Premium ET-7700 ET-7750 uses the T512 ink bottles, featuring a dedicated five-colour setup with both pigment and dye inks. We have been supplying replacement ink bottles for this printer since Nov 2017, helping creative users maintain balance across individual colour channels during heavy photo production. Our 4.8 Google Star rating shows that our customers consistently receive high-quality cartridges backed by reliable performance.
How long these ink bottles last in real use
Epson determines page yield metrics for the T512 series using the international ISO/IEC 24711 standard for continuous colour printing. Photo and creative printing tasks will see varying depletion rates depending on colour density, though the independent bottle system ensures individual colours can be replenished as they run out.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| T512 | Standard | Black | 8,000 | $0.005 |
| T512 | Standard | Photo Black | 11,500 | $0.002 |
| T512 | Standard | Cyan | 5,000 | $0.006 |
| T512 | Standard | Magenta | 5,000 | $0.006 |
| T512 | Standard | Yellow | 5,000 | $0.006 |
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. Third-party T512 refill options provide an alternative for high-volume document generation or drafting without altering the physical ink delivery mechanisms. You can read our detailed breakdown on genuine vs compatible cartridges to see which matches your creative workflow.
Best way to stock these ink bottles
Document workloads heavy in text will deplete the black ink bottle rapidly, while graphic production uses the cyan, magenta, and yellow channels concurrently. Bundles provide an efficient way to hold complete spares, and our compatible replacements come backed by a money-back guarantee. Free delivery applies on all orders over $99 (conditions apply), with goods dispatched directly from regional distribution facilities located across Sydney, Melbourne, Brisbane, Adelaide, and Perth. Discover our full inventory of Epson ink bottles online. Refer to our returns policy for further information.
Pro Tip
To maintain the precise ink distribution required for high-grade photo output, avoid letting ink levels drop below the lower line on the printer reservoirs before topping up with fresh T512 liquid.
Frequently Asked Questions
Why does this system use two different types of black ink bottles?
The T512 series employs a pigment black for crisp text formatting alongside a dye-based photo black. This ensures document prints remain smudge-resistant while photo media receives the deep contrast and gloss finish typical of premium creative printing.
Can I mix a compatible T512 ink bottle with genuine bottles already in use?
Yes, each reservoir functions independently within this printer. You can top up an individual depleted colour with a compatible T512 bottle while the remaining colour channels continue running their existing genuine ink.
How do the nozzles on these replacement bottles prevent incorrect filling?
Each T512 ink bottle features a uniquely keyed interlocking tip configuration that only aligns with its corresponding colour port on the printer, physically preventing accidental colour mixing during refills.
