You know it's time to take action when your L6170 displays one of these messages:

Click (Note: Most software tools require purchasing a reset key to complete this action). Benefits of Using a Maintenance Box Resetter

Line up the pins of the resetter with the gold contacts on the box's chip. Initiate Reset:

If a user replaces the box strictly based on the counter, perfectly functional hardware is discarded. While Epson encourages recycling, a significant percentage of these units end up in landfills. By using a resetter, the user extends the life of the maintenance box, potentially resetting it two or three times before the pad is genuinely physically saturated. This creates a delay between purchase cycles, reducing the volume of non-biodegradable plastic and electronic waste generated over the printer's lifespan.

Locate the green circuit board (chip) on the maintenance box.