Keep the boxes checked, and now click the button. A pop-up prompt will ask for confirmation. Click OK . Step 5: Completing the Process A prompt will appear saying: "Please turn off the printer."

The software will display a pop-up saying: "Please turn off the printer."

Which (e.g., Windows 10, Windows 11) are you using to connect to the printer?

The exact currently showing on your L6490 screen?

Using the Epson L6490 Adjustment Program is an effective way to extend the life of your printer, provided you handle the physical maintenance of the ink pads responsibly.

The Epson EcoTank Pro L6490 is a robust, multifunction ink tank printer designed for high-volume business printing. However, like all printers, it eventually requires maintenance that standard software utilities cannot handle. When your printer halts and displays error messages like "service required" or "parts inside the printer are at the end of their service life," the Epson L6490 Adjustment Program (also known as the Epson Adjustment Program or Resetter) becomes an essential tool.

Epson printers have a that tracks how much ink has been flushed into internal absorption pads. When the counter reaches its limit, the printer stops working and displays a “Service Required” error (often with a code like 0xF1 or similar). The adjustment program resets this counter.

The Epson L6490 uses a user-replaceable maintenance box (typically part number T04D1 ). This box houses the waste ink pads and a chip. If your model uses an independent built-in pad setup, you should physically remove the ink pads, wash them thoroughly in warm water, let them dry completely, and reinstall them.

Reads, backups, and writes the printer's core configuration data.

To prevent this ink from overflowing and leaking onto your desk or damaging the printer's internal electronics, the printer relies on a digital counter called the . Every time the printer performs a cleaning cycle, this counter increases.

The Adjustment Program only resets the digital counter software. It does physically clean the ink.