Release the button while keeping the Power button held down.
Disclaimer: This article is for educational purposes only. The author and site do not host or provide direct download links for copyrighted software. Use third-party downloads at your own risk and always respect Canon’s intellectual property. Canon Service Tool V.3900 Download
A genuine V.3900 tool will:
In the "Ink Absorber Counter" section, select "MAIN" and click "SET". Important Safety and Download Notes Ink absorber full - MX892 - Canon Knowledge Base Release the button while keeping the Power button held down
While the Canon Service Tool V.3900 might be a specific requirement for authorized service providers, it's essential to approach such tools with caution and only use or distribute them through official channels. For general users, focusing on user-friendly support options provided by Canon is the safest and most effective way to manage and troubleshoot your printer needs. Use third-party downloads at your own risk and
The primary reason users download V.3900 is to bypass hardware lockouts that occur when a printer's internal waste ink pads are technically full.
The green light will blink for a few moments and then stay solidly lit. Your computer may display a "Found New Hardware" wizard; simply close or ignore this notification. Your printer is now in Service Mode. Step 2: Canon Service Tool V.3900 Download and Execution