V.3900 runs natively on Windows 11, 10, 8, and 7. It is incompatible with macOS or Linux operating systems.

Resets the ink absorber counter back to 0%.

: While some older versions like V3400 might be found for free, V3900 and newer versions (V5103, V6000) are typically paid or require a specific activation key based on your PC ID. How to Use Service Tool V3900

: This is a service technician tool. Using an incorrect version for your model can cause "Error Code 002" or "005," and improper use could potentially brick the printer’s logic board.

Turn off the printer (but leave it plugged into power and connected to your PC via USB). Press and hold the button (red triangle). Press and hold the Power button.

Resetting the software counter does not empty the physical ink. The waste ink pads inside the base of the printer are genuinely saturated with discarded ink. If you reset the software counter multiple times without replacing or washing out the physical felt pads, ink will eventually overflow out of the bottom of the printer machine, damaging your desk or the printer's internal electrical boards. To ensure I give you the correct advice, tell me: What exact do you own?

Before you hit "download," you must understand three major risks associated with the Canon Service Tool V3900.

The use of this tool brings several critical points to the forefront: Hardware Risk

If successful, a small dialog box will appear saying "A function was finished." Click . Next, navigate to the Ink Absorber Counter section below.

Look at the top of the program window. If the buttons are clickable, the software has successfully detected your printer. If options are greyed out, your printer is not in Service Mode or the USB cable is faulty.

The utility is built exclusively for Windows environments (Windows 7, 8, 10, and 11). It will not run natively on macOS or Linux. Step-by-Step: How to Use V.3900 to Reset Your Printer