V.3900 !!link!! Download — Canon Service Tool

For some older Canon models, it is possible to reset the ink absorber counter manually by pressing button sequences without any software. This is less common on newer printers, but if your printer is supported, the manual method is a quick alternative:

: 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

Canon programs its printers with an internal counter that estimates how much ink these pads have absorbed. When the counter reaches 100%, the printer assumes the pads are fully saturated and poses a risk of leaking ink onto your desk or damaging the internal electronics. Canon Service Tool V.3900 Download

: The most common use is selecting "Main" in the Ink Absorber Counter section and clicking "Set" to clear the full-pad error.

When a printer prints, a small amount of ink is deposited into internal absorbent pads during head cleanings. The printer estimates this usage using an internal electronic counter. Once that counter hits 100%, the printer locks down. The V.3900 software communicates with the printer firmware to reset this counter back to 0%. Key Features of V.3900 For some older Canon models, it is possible

Printers have built-in counters to track usage. Over time, parts inside the printer wear out. The software resets these internal counters so the printer can work again. Why Do You Need It?

: This software is not publicly hosted on official Canon consumer support sites; it is typically an internal technician tool. When the counter reaches 100%, the printer assumes

the printer but leave the power cable plugged into the wall.

Click to verify the reset, then turn the printer off and back on. Important Precautions and Troubleshooting