1. Introduction
This manual provides essential information for the proper use and maintenance of your EPSON 522 EcoTank Ink Bottles. These high-capacity ink bottles are designed to work seamlessly with compatible Epson EcoTank printers, offering a convenient and economical solution for your printing needs. Please read this manual thoroughly to ensure optimal performance and longevity of your ink and printer.
2. Product Overview
The EPSON 522 EcoTank Ink Color Combo Pack includes individual bottles of Cyan, Magenta, and Yellow ink. These bottles feature a unique EcoFit key system, ensuring that each color bottle fits only into its corresponding ink tank, preventing accidental misfilling.

Image: Packaging of the Epson 522 EcoTank Ink Color Combo Pack, showing three ink bottles (Cyan, Magenta, Yellow) and the EcoTank logo.

Image: Close-up of the Epson 522 ink bottles (Cyan, Magenta, Yellow) alongside the product packaging, highlighting the 'Epson Genuine Ink' seal.
3. Setup and Ink Refilling
Before refilling, ensure your printer is powered on and the ink tank unit is accessible. Refer to your printer's specific manual for detailed instructions on opening the ink tank cover.
- Identify the Correct Color: Each EcoTank ink bottle is uniquely keyed to fit only its corresponding color tank (e.g., Cyan bottle for Cyan tank). Verify the color label on the bottle matches the color label on the printer's ink tank.
- Open the Ink Tank Cap: Carefully open the cap of the ink tank you wish to refill.
- Prepare the Ink Bottle: Twist off the cap of the ink bottle. Do not squeeze the bottle.
- Insert and Fill: Align the nozzle of the ink bottle with the filling port of the correct ink tank. Insert the bottle firmly. The ink will begin to flow automatically into the tank. The flow will stop automatically when the tank is full.
- Remove and Cap: Once the ink stops flowing, carefully remove the bottle. Cap the ink tank securely and replace the ink bottle cap.

Image: A hand demonstrating the mess-free refilling process of an Epson EcoTank printer using an EcoFit ink bottle, showing the bottle inserted into the printer's ink tank.
Important Safety Note: Do not ingest ink. Keep out of reach of children. If ink gets into your eyes, flush immediately with water. If swallowed, seek medical attention.
4. Operating Considerations
These ink bottles are designed for use with Epson EcoTank printers. For optimal print quality and printer longevity, always use genuine Epson ink. The typical page yield for these ink bottles is up to 6,000 pages, though actual yields may vary based on images printed, print settings, temperature, and humidity.

Image: A graphic listing compatible Epson EcoTank printer models: ET-2400, ET-2720, ET-2800, ET-2803, ET-2840, ET-4700, ET-4800, ET-4810.
5. Maintenance
To maintain your EcoTank printer and ink system:
- Store ink bottles upright in a cool, dark place, away from direct sunlight and extreme temperatures.
- Avoid leaving ink tanks empty for prolonged periods, as this can affect print head performance.
- Regularly perform print head cleaning and nozzle checks through your printer's utility software to prevent clogging and ensure consistent print quality.

Image: A visual representation emphasizing 'Zero Cartridge Waste', depicting a large pile of traditional ink cartridges with a red cross over them, contrasted with the clean, refillable EcoTank ink bottles.
6. Troubleshooting
If you encounter issues related to ink or print quality:
- Low Ink Warning: If your printer indicates low ink, refill the corresponding tank as soon as possible to avoid print interruptions.
- Poor Print Quality (Streaks, Fading): This may indicate clogged nozzles. Perform a print head cleaning cycle using your printer's control panel or software. Refer to your printer's manual for specific steps.
- Ink Not Flowing: Ensure the ink bottle is correctly inserted and fully seated in the tank's filling port. Do not force the bottle.
- Incorrect Color Output: Verify that you have refilled each tank with the correct color ink. The EcoFit system is designed to prevent misfilling, but always double-check.
For more complex issues, consult your specific Epson EcoTank printer's user manual or the Epson support website.
7. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 4.1 x 2.8 x 7.6 inches |
| Item Weight | 11.2 ounces |
| Model Number | T522520-S |
| Brand | Epson |
| Ink Color | Color Multi-pack (CMY) |
| Page Yield | 7500 (Black), 6000 (Color) |
| Compatible Devices | Epson EcoTank Printers |
| Compatible Printer Models | ET-2400, ET-2720, ET-2800, ET-2803, ET-2840, ET-4700, ET-4800, ET-4810 |
| Ink Base | Water |
8. Warranty and Support
For warranty information regarding your Epson EcoTank Ink Bottles, please refer to the documentation provided with your Epson EcoTank printer or visit the official Epson support website. Epson provides comprehensive support for its products.
If you require technical assistance or have questions about your ink bottles or printer, please contact Epson Customer Support directly. You can typically find contact information on the Epson website or in your printer's user manual.





