What Ink Does the Epson WorkForce Pro WF-4730 Use?
Last Updated:The Epson WorkForce Pro WF-4730 all-in-one inkjet printer uses Epson 902 and Epson 902XL DURABrite Ultra ink cartridges. Standard 902 cartridges deliver around 350 black and 300 color pages, and the high-yield 902XL cartridges produce approximately 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 same Epson 902/902XL cartridges fit the WorkForce Pro WF-4720, WF-4734, and WF-4740, so multi-printer offices can standardize on a single ink set.
Save on Epson 902 Ink
Order Epson 902 compatible cartridges from Castle Ink to slash your cost per page while keeping the DURABrite Ultra pigment-based print quality the WF-4730 was engineered for.
How to Replace Ink in the WF-4730
- Turn on the WF-4730 and lift the scanner unit until it locks open.
- Wait for the cartridge carriage to slide to the access position.
- Squeeze the release tab and pull the empty cartridge straight up.
- Shake the new cartridge gently, peel off the yellow tape, and click 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 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, then print a nozzle check.
Slow print speed: Lower print quality to Standard rather than Best and verify the paper type setting matches the loaded paper.
Ink levels stuck: Power-cycle the printer for one minute, then reseat each cartridge to refresh the chip handshake.
Official Epson Resources
Epson WF-4730 Support Page · WF-4730 User's Guide (PDF)
Bottom Line
Pick up Epson 902XL compatible cartridges at Castle Ink to keep your WorkForce Pro WF-4730 productive at a fraction of OEM pricing — the XL versions give you the lowest cost per page.
Frequently Asked Questions
What's the difference between Epson 902 and 902XL? Both fit the WF-4730; 902XL holds about 3x more ink for substantial savings per page.
Can I mix standard and XL cartridges? Yes, any mix of 902 black and color cartridges will work together.
Does the WF-4730 print double-sided automatically? Yes, automatic duplex printing is supported with all 902 ink cartridges.
Will compatible cartridges void my warranty? No, the Magnuson-Moss Warranty Act protects your warranty when using third-party ink.
How do I reset the ink monitor? Install the new cartridge, close the scanner unit, and the WF-4730 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.