v1.0.0 — first release

Waste Ink Maintenance Counter Utility — v1.0.0

First public release. An open-source, maintenance-focused utility for selected
compatible inkjet printers (Windows, USB).

What it does

• Reads approximate waste-ink maintenance counters and usage counters
  (printed pages, scans, cleaning cycles) over USB.
• Creates an automatic EEPROM backup before every reset (with restore).
• Resets the maintenance counters only after you confirm the physical
  waste-ink pad/tank has been inspected, cleaned, replaced, or redirected.

What it does not do

• It does not clean, empty, repair, or replace the waste-ink pad/tank.
• It is not a way to avoid service requirements, and it is not an
  official Epson product.

Supported models

• Verified on hardware (June 2026): L3250 / L3251 / L3253 / L3255.
• Experimental (EUPL-derived, unverified): all other models — use extra
  caution. See SUPPORTED_MODELS.md and DATA_PROVENANCE.md.

Install

1. Download MaintenanceCounterUtility-v1.0.0.zip, unzip, run the .exe.
2. Accept the Terms on first run. Connect the printer by USB and use the app.
3. After a reset, power-cycle the printer to commit the change.

Verify the download

Compare the SHA-256 of the files against SHA256SUMS.txt:

Get-FileHash .\MaintenanceCounterUtility.exe -Algorithm SHA256

Notes

• The .exe is unsigned: Windows SmartScreen may warn → More info → Run anyway.
• Licensed under EUPL-1.2; full source is in this repository.
• Resetting clears only the software counter — the physical pad is still
  full and must be serviced separately, or ink can overflow.
• Anti-circumvention, repair, warranty, consumer-protection, and trademark laws
  vary by jurisdiction. This is not legal advice; paid/ad-supported
  distribution requires legal review before paid distribution.

Not affiliated with, endorsed by, sponsored by, or approved by Epson. Epson
is a trademark of its respective owner; product names indicate compatibility only.