Epson EcoTank ET-4850 Refill Ink Bottles
Your Epson EcoTank ET-4850 uses the T502 ink bottle series. Our 4.8 Google rating reflects a long-standing track record of premium cartridge performance. We have been supplying these reliable eco-friendly consumables since Jun 2022, catering to workplaces that require continuous daily document production without frequent user intervention. Small business operations rely heavily on the high-capacity ink replenishment workflow, ensuring that multi-user document traffic remains uninterrupted and overheads stay remarkably low.
Real-world page output and replenishment cycles
Epson measures the print capacity of these bottles using the ISO/IEC 24712 pattern for continuous colour inkjet printing. This standard provides a realistic baseline for small office documentation, where text and graphics are blended across general administration workflows.
| Cartridge Number | Type | Colour | Page Yield | Cost Per Page |
|---|---|---|---|---|
| T502 | Standard | Black | 7,500 | $0.005 |
| T502 | Standard | Cyan | 6,000 | $0.003 |
| T502 | Standard | Magenta | 6,000 | $0.003 |
| T502 | Standard | Yellow | 6,000 | $0.003 |
Cost Per Page = Total Cartridge Price ÷ Page Yield (at 5% coverage). Prices based on Genuine cartridges.
Managing replacements and delivery
Workplaces relying on continuous document creation generally see black ink deplete faster than individual colours due to high text volume. Investing in complete value multi-packs ensures no single colour bottle runs dry during critical business hours. Complete your replacement setup via the secure Epson ink bottles portal. Orders ship promptly from our national distribution points across Sydney, Melbourne, Brisbane, Perth and Adelaide. Free delivery applies on all orders over $99 (conditions apply). All genuine products come backed by the standard manufacturer warranty, and our flexible change-of-mind terms are available via our Returns policy.
Pro Tip
Avoid waiting until an ink tank is completely empty before refilling; running the internal printhead channels completely dry can pull air into the ink delivery tubes, requiring a heavy power cleaning cycle that consumes significant ink volume to clear.
Frequently Asked Questions
Can I mix different ink series numbers if the bottles look identical?
No, you cannot use any ink other than the T502 series in this printer. Epson designs the physical nozzles on the top of each bottle with a unique keyed shape that only fits the corresponding colour-coded valve on the ET-4850 ink tanks to prevent chemical mixing.
Why does my colour ink level drop when I print text documents in black?
The printer regularly runs automatic maintenance and printhead cleaning cycles to keep the micro-piezo nozzles clear of dried ink. These maintenance routines draw small amounts of ink from all reservoirs simultaneously, including cyan, magenta and yellow, regardless of what you print.
Do these ink bottles have an expiry date after being opened?
Epson bottles do not have strict built-in electronic chip expiry locks, but it is best practice to use the ink within six months of breaking the bottle seal. Over extended periods, exposure to air inside a partially filled tank can slowly alter ink viscosity and impact print clarity.
