You are likely searching for “Epson Adjustment Program L3156” because you see one of these error indicators:

When these appear after you’ve already refilled ink tanks, the Adjustment Program is often the only free or low-cost fix.

The Epson Adjustment Program L3156 is a powerful service tool intended for technicians and experienced users. When used carefully and ethically—preferably by authorized personnel—it can extend printer life and resolve service-blocking errors. However, misuse can lead to hardware damage, ink spills, and voided warranties, so prioritize official support and proper physical servicing (especially of waste ink pads) before performing resets.

If you want, I can provide a concise, step-by-step walkthrough for a common task (waste ink pad counter reset) assuming you accept the risks and confirm you’ll service the pads first.

The primary feature of the Epson Adjustment Program (AdjProg) for the L3156 is the Waste Ink Pad Counter Reset

This utility is specifically designed for technical servicing to address the "Service Required" error that occurs when the printer's internal waste ink sponges are theoretically full. Key Features & Capabilities: Waste Ink Pad Reset

: This is the most common use; it resets the internal counter to 0%, allowing the printer to resume operation after it has locked itself due to ink overflow protection. Particular Adjustment Mode

: Provides access to advanced maintenance tools not found in standard driver settings, such as: EEPROM Operations

: Reading, writing, or initializing the printer's internal memory. Print Head ID Input

: Essential when replacing a physical print head to ensure the logic board recognizes the new hardware. Initial Ink Charge

: Forces the printer to prime the ink tubes, typically used during first-time setup or after a long period of inactivity. Cleaning Cycles

: Includes "Strong Cleaning" or "Power Cleaning" modes that are more intensive than the standard "Head Cleaning" in the Windows maintenance tab. Important Considerations: Hardware Maintenance

: Resetting the counter via software does not physically clean the waste pads. If you reset the software without replacing or cleaning the physical sponges, ink may eventually leak from the bottom of the printer.

: This is often considered unofficial "service-only" software. Using it may void your official warranty in certain regions. Connection : The program usually requires a USB connection

; it generally cannot perform these deep adjustments over Wi-Fi. Are you currently seeing a "Service Required" error message, or are you trying to perform a Print Head ID

How to Download Epson Adjustment Program? #911488 - Ask Extension

Before resorting to the resetter, consider these safer options:

Right-click AdjProg.exe → Run as administrator. The interface will open.