What Ink Does the Epson EcoTank ET-3760 Use?
Last Updated:The Epson EcoTank ET-3760 wireless all-in-one supertank printer uses Epson 502 ink bottles. Each bottle delivers about 4,500 black or 7,500 color pages — equivalent to roughly 80 standard cartridges, at a fraction of the cost per page.
Ink Bottles at a Glance
| Bottle | Color | Approx. Page Yield |
|---|---|---|
| Epson 502 | Black | ~4,500 pages |
| Epson 502 | Cyan | ~7,500 pages |
| Epson 502 | Magenta | ~7,500 pages |
| Epson 502 | Yellow | ~7,500 pages |
The same Epson 502 bottles are used in the EcoTank ET-2720, ET-2750, ET-2760, ET-2850, ET-3710, ET-3750, ET-4750, and ET-4760, so a single ink set covers the entire EcoTank lineup.
Save on Epson 502 Ink
Pick up Epson 502 compatible ink bottles from Castle Ink for the same cartridge-free print quality at a fraction of OEM pricing.
How to Refill Ink in the ET-3760
- Open the ink tank cover on the front of the ET-3760 and unlock the tank cap.
- Snap off the bottle cap and place the bottle into the matching color tank port.
- Let the ink flow naturally — bottles stop automatically when the tank is full.
- Replace the bottle cap and close the tank cap firmly.
- Close the ink tank cover; the printer recognizes new ink immediately.
Troubleshooting Tips
Print quality issues: Run two or three Print Head Cleaning cycles from Setup > Maintenance and print a nozzle check.
Ink not flowing: Make sure each bottle is fully seated; the keyed bottle tip should release ink automatically.
Slow printing: Switch quality to Standard rather than Best and verify the paper type matches what's loaded.
Ink levels look low after refill: Use the LCD menu to manually reset each ink level after a refill.
Official Epson Resources
Epson ET-3760 Support Page · ET-3760 User's Guide (PDF)
Bottom Line
Stock up on Epson 502 compatible ink bottles at Castle Ink for unmatched value on your EcoTank ET-3760 — supertank refills cost a fraction of cartridge printing.
Frequently Asked Questions
How long does one set of Epson 502 bottles last? A single set yields about 4,500 black and 7,500 color pages — equivalent to 80+ standard cartridges.
Can I use 502 bottles in other EcoTank models? Yes, Epson 502 fits the ET-2720, ET-2750, ET-2760, ET-2850, ET-3710, ET-3750, ET-4750, and ET-4760.
Does the ET-3760 support automatic duplex? Yes, the ET-3760 includes automatic two-sided printing.
Will compatible ink void my warranty? No, the Magnuson-Moss Warranty Act protects your warranty when you use third-party ink.
How do I reset the ink level after refilling? Use the LCD menu to manually set each ink level back to full after a refill.
About the Author: William Elward is the founder of Castle Ink with over 20 years of experience in the printer industry.