Guide

Does your Epson need a reset or a new maintenance box?

Updated 2026-09-26·4 min read
Short answer

Printers with fixed waste ink pads can have their counter reset in software. Printers with a replaceable maintenance box, such as those using C9345 or T04D1 boxes, cannot. The box is replaced instead and the message clears.

Two designs

Compared Fixed waste ink pads Maintenance box
Where the waste ink goes Pads inside the printer’s body A removable box with a chip
What stops the printer A counter reaches its limit The box’s chip reports it is full
The fix Reset the counter, then check the pads Fit a new box
Can VNIT Reset Tool help? Yes No

How to tell which one you have

  1. Look it up. Type your model into the supported printers table. It shows either Software reset or Replace box with the box code.
  2. Check the manual. If it lists a maintenance box as a part you can buy, your printer has one. The part number is often C9344, C9345 or T04D1.
  3. Read the counter. If you are still unsure, download the tool and press Check. Reading is free, and the tool tells you when a model uses a box.

Why we say so before you pay

A reset key cannot help a maintenance-box printer, so we will not sell you one for it. If you are unsure, send us your model on WhatsApp and we will check for free.

Replacing a maintenance box

Buy the box with the same code as the one in your printer, from an Epson reseller or a printer supply shop. Swap it as your manual shows. A new box starts empty, the printer recognises it, and the message clears.

Sources

  1. Epson regional product pages (maintenance box part numbers per model)
  2. VNIT Reset Tool model database