Every Epson printer has a built-in counter that tracks how much ink is "wasted" during cleaning cycles. When this counter reaches its limit, the printer locks itself to prevent ink from overflowing and damaging the internal electronics.
What or message is displaying on your printer?
If you replace a failed mainboard, the new board will hold incorrect serial numbers and usage stats. The adjustment program re-programs the board to match your L6490’s hardware.
Click on the software prompt, then close the Adjustment Program. Epson L6490 Adjustment Program
Epson printers are engineered with internal waste ink pads—porous foam blocks designed to catch and absorb excess ink during initial setup, print head priming, and automatic cleaning cycles.
Some versions of this software require a "License Key" or "Activation Key" for a one-time reset.
Which (e.g., Windows 10, Windows 11) are you using to connect to the printer? Every Epson printer has a built-in counter that
Resets the printer to factory defaults. Print Head Cleaning: Executes powerful cleaning cycles.
The Adjustment Program is a maintenance utility for resetting counters and performing service tasks. A firmware update is an official update from Epson that adds features, improves performance, or fixes bugs.
Open the extracted folder, locate the AdjProg.exe file, right-click it, and select . If you replace a failed mainboard, the new
Have you already or ink pads?
When you perform a software reset, you must also do one of the following:
Using the software adjustment program resets the , but it does not physically empty the waste ink from the foam pads.
The Epson L6490 LCD screen displaying a notification.
Right-click on the AdjProg.exe file and select . Click the Select button at the top of the window. Choose L6490 from the Model Name dropdown menu.