Epson Printer Error Code 0xe4 — What It Means & How to Fix It

What Does This Error Mean?

Epson error 0xE4 indicates a problem with an ink cartridge — either it is not recognized, not seated properly, or the printer is detecting an incompatibility. The printer will pause printing and display this code until the cartridge issue is resolved.

Affected Models

Epson WorkForce WF-2850
Epson Expression XP-4100
Epson WorkForce Pro WF-4830
Epson EcoTank ET-3850
Epson XP-7100

Common Causes

An ink cartridge is not fully clicked into its slot and has a poor electrical connection with the printer
The chip on an ink cartridge is dirty, damaged, or unreadable by the printer
A third-party or refilled cartridge has a chip that the Epson printer firmware does not recognize
An ink cartridge was installed while the printer was powered off, causing initialization to fail
The printer has been updated with new firmware that now rejects previously accepted cartridges

How to Fix It

Open the printer and identify which cartridge slot is causing the problem. Most Epson printers will highlight the affected slot with a flashing indicator light.

If all lights are flashing or the printer does not specify a slot, start by removing and reseating all cartridges.
Remove the indicated cartridge. Check the copper contact strip on the bottom of the cartridge for ink, dust, or fingerprints. Clean it gently with a dry cotton swab.

Do not use alcohol or water on the cartridge chip — a dry swab is sufficient and safer.
Check the corresponding contacts inside the cartridge slot — the small pins or pads that touch the cartridge chip. Clean them gently with a cotton swab if you see ink residue.

Be careful not to bend the contact pins. Use very light pressure.
Reinstall the cartridge with the printer powered on. Push it in firmly until you feel and hear a click.

Epson cartridges must be installed while the printer is on. Installing them while the printer is off can cause error 0xE4 because the printer cannot run the initialization sequence.
If the error persists after reseating the cartridge, replace it with a new genuine Epson cartridge for your model. Confirm the cartridge part number matches your printer before purchasing.

Third-party cartridges are a common cause of 0xE4. Even if they worked before, a firmware update may have added checks that reject non-genuine chips.

When to Call a Professional

If you have replaced all cartridges with genuine Epson ones and error 0xE4 still appears, the ink bay contacts inside the printer may be damaged or corroded. An Epson service technician can clean or replace the contact assembly. This repair is practical for mid-range and high-end Epson models.

Frequently Asked Questions

Epson just updated my printer's firmware automatically and now third-party cartridges show error 0xE4 — what happened?

Epson periodically releases firmware updates that add stricter cartridge authentication checks. These updates can cause previously working third-party or refilled cartridges to be rejected. Your options are to switch to genuine Epson cartridges, roll back the firmware (if you saved the old version), or use a chip resetter tool designed for your cartridge series.

Can I override error 0xE4 and print anyway?

Sometimes yes, but only on older Epson models. On some printers, holding the ink button or pressing OK will allow you to continue despite the error — this is not recommended because it can result in poor print quality or damage the print head if the cartridge really is empty. Newer Epson models do not allow this override.

I just bought a genuine Epson cartridge and I am still getting error 0xE4 — why?

First, confirm the cartridge is the right model number for your printer — Epson makes many similar-looking cartridges that are not interchangeable. Second, check that the protective orange cap and pull-tab were removed before installation. Third, make sure the cartridge is seated all the way in — it needs to click into place, not just sit in the slot.