What Ink Does the Epson WorkForce WF-3720 Use?
Last Updated:The Epson WorkForce WF-3720 uses Epson 220 DURABrite Ultra ink cartridges (Black, Cyan, Magenta, Yellow). The high-yield 220XL cartridges are also compatible and recommended for any moderate-volume user.
Ink Cartridges at a Glance
| Cartridge | Color | Yield |
|---|---|---|
| T220120 (220 BK) | Black | ~175 pages |
| T220XL120 (220XL BK) | Black (XL) | ~500 pages |
| T220XL220 | Cyan (XL) | ~450 pages |
| T220XL320 | Magenta (XL) | ~450 pages |
| T220XL420 | Yellow (XL) | ~450 pages |
The Epson 220/220XL cartridge family fits the WorkForce WF-2630, WF-2650, WF-2660, WF-2750, WF-2760, WF-2830, WF-2850, WF-2860, WF-3720, WF-3730 and Expression Home XP-320, XP-330, XP-420, XP-424, XP-430.
Save on Epson 220XL Ink
Compatible Epson 220XL cartridges work in the WF-3720 at a fraction of OEM pricing. Shop Epson 220 cartridges at Castle Ink.
How to Replace Ink in the Epson WorkForce WF-3720
- Power on the printer and open the front ink cover.
- Pinch the tab on the empty cartridge and lift it out.
- Unbox the new Epson 220XL cartridge and peel off the yellow tape.
- Insert the cartridge into the matching color slot until it clicks firmly.
- Close the cover and follow the on-screen prompts to charge the ink.
Troubleshooting Tips
Cartridge not recognized: Remove and reseat firmly until it clicks.
Streaks or missing colors: Run Setup > Maintenance > Print Head Cleaning.
Yellow tape warning: Confirm the yellow protective tape was removed.
Low ink warning persists: Compatibles show estimated levels — judge by output.
Official Epson Resources
Epson WF-3720 support · Epson home
Bottom Line
The Epson WorkForce WF-3720 uses Epson 220 (or 220XL) DURABrite Ultra ink. 220XL is the best value — shop Epson 220 at Castle Ink.
Frequently Asked Questions
220 or 220XL? Both fit; 220XL prints about 2.5x more pages.
Pages per cartridge? About 500 black / 450 color per 220XL.
Can I mix yields? Yes — any combination works.
Will compatible 220XL cartridges work? Yes — quality compatibles fit the WF-3720.
Why isn't my cartridge recognized? Remove and firmly reseat.
— William Elward