Using the adjustment program yourself (if still applicable).
Let’s break it down.
Your L3156 is a reliable printer when maintained properly. A small service fee now is cheaper than buying a new printer because of a failed reset attempt. Have you used the adjustment program on your L3156? Share your experience in the comments — but remember, every printer is different. epson adjustment program l3156
Epson L3156 Adjustment Program: What It Is, When to Use It, and Critical Warnings Using the adjustment program yourself (if still applicable)