Adjprog L4150 L4160exe Instant
: Turn the printer off and back on when prompted to complete the reset. Important Safety Warning
Some operations performed by adjprog l4150 l4160.exe might require a certain level of technical knowledge. Incorrect use of the software could potentially lead to printer malfunction.
: The primary reason users search for this tool. It resets the internal software counters back to 0%.
to confirm the current usage percentage (usually 100% when locked). Check the boxes again and click Initialization : When prompted, turn off the printer adjprog l4150 l4160exe
: Some versions of this software require a license key generated from your computer's unique Hardware ID. You may need to run a HWID.exe utility to get this code before the program will activate.
Click on the button on the right side.
| Problem | Likely Solution | | :--- | :--- | | | Your antivirus may have partially blocked or corrupted the file. Disable real-time protection, delete the folder, and extract the archive again. | | "Printer does not respond" or Communication Error | You likely used "Auto selection" for the printer port. Return to the SELECT menu and manually choose the specific USB port your printer is on. | | "Unknown Exception" error when opening AdjProg | This is almost always caused by an antivirus or Windows Defender blocking the program. Ensure you have disabled all security software and are running the program as an administrator. | | Program opens but shows license/key error again | Your license key was not correctly applied. Make sure the files from the newly generated key folder were copied into the same directory as the AdjProg.exe file. | : Turn the printer off and back on
The Adjustment Program for the Epson L4150 and L4160 is a powerful diagnostic tool that bridges the gap between hardware and firmware. While it provides an effective software solution for the "Service Required" error, it functions effectively as a "lie" to the printer's logic board, telling it the waste pads are empty when they may physically be full. Therefore, responsible usage requires that software resets be accompanied by physical maintenance—either the replacement of waste ink pads or the installation of an external waste ink kit—to ensure the longevity and safety of the device.
The adjustment program runs exclusively on Windows (Windows 7, 8, 10, or 11).
During normal operations—such as printhead cleaning cycles or borderless printing border-trimming—Epson EcoTank printers flush excess ink into a physical storage block containing absorbent felt sheets. This component is known as the (or "diaper"). : The primary reason users search for this tool
Epson has introduced cloud-based service authentication (Epson Service Link) for newer models, making leaked adjprog ineffective. For L4150/L4160, firmware updates from 2024 onward also block unofficial adjustment programs by requiring cryptographic handshakes. Thus, the window for using adjprog l4150 l4160exe is closing rapidly.
Run the (often labeled WLGen ) and use the License Manager to "Add License". Paste your Hardware ID, save, and click Create License Key .
The Adjustment Program is a .exe file built strictly for Windows operating systems (Windows 7, 8, 10, and 11). It will not run on macOS.
Follow these exact steps to use the resetter utility safely: Step 1: Initialize the Software