What Ink Does the Epson WorkForce Pro WF-4740 Use?
Last Updated:The Epson WorkForce Pro WF-4740 all-in-one inkjet printer uses Epson 902 and Epson 902XL DURABrite Ultra ink cartridges. The 902 standard cartridges yield about 350 black and 300 color pages, and the 902XL high-yield cartridges deliver around 1,100 black and 825 color pages each.
Ink Cartridges at a Glance
| Cartridge | Color | Approx. Page Yield |
|---|---|---|
| Epson 902 | Black | ~350 pages |
| Epson 902 | Cyan / Magenta / Yellow | ~300 pages each |
| Epson 902XL | Black | ~1,100 pages |
| Epson 902XL | Cyan / Magenta / Yellow | ~825 pages each |
The Epson 902/902XL cartridges are shared across the WorkForce Pro WF-4720, WF-4730, and WF-4734 — so you can stock a single ink set for a multi-printer office.
Save on Epson 902 Ink
Order Epson 902 compatible cartridges from Castle Ink for the same DURABrite Ultra pigment-based quality at a fraction of OEM prices.
How to Replace Ink in the WF-4740
- Turn the WF-4740 on and lift the scanner unit until it locks in place.
- Wait for the cartridge carriage to slide to the replacement position.
- Squeeze the release tab and lift the empty cartridge straight out.
- Gently shake the new cartridge, peel off the yellow tape, and snap it into the correct slot.
- Close the scanner unit; the printer primes the new ink for about 90 seconds.
Troubleshooting Tips
Cartridge not recognized: Remove the cartridge, wipe the gold chip clean with a lint-free cloth, and reinstall it firmly until it clicks.
Faded or banded output: Run two or three Head Cleaning cycles from Setup > Maintenance and then print a nozzle check.
Slow printing: Set print quality to Standard rather than Best and verify the paper type matches what's loaded.
Ink levels stuck: Power-cycle the printer for one minute and reseat each cartridge to refresh the chip handshake.
Official Epson Resources
Epson WF-4740 Support Page · WF-4740 User's Guide (PDF)
Bottom Line
Stock up on Epson 902XL compatible cartridges at Castle Ink to keep your WorkForce Pro WF-4740 running at the lowest cost per page.
Frequently Asked Questions
What's the difference between Epson 902 and 902XL? Both fit the WF-4740; 902XL holds roughly 3x more ink for big per-page savings.
Can I mix standard and XL cartridges? Yes, any mix of 902 black and color cartridges works together.
Does the WF-4740 print double-sided automatically? Yes, automatic duplex printing is supported with all 902 cartridges.
Will compatible cartridges void my warranty? No, the Magnuson-Moss Warranty Act protects your warranty when you use third-party ink.
How do I reset the ink monitor? Install the new cartridge, close the scanner unit, and the WF-4740 resets the ink level automatically.
About the Author: William Elward is the founder of Castle Ink with over 20 years of experience in the printer industry.