: Many "free" versions hosted on third-party sites are flagged as Trojans or viruses that exploit software vulnerabilities (like WinRAR).
: Simply resetting the counter does not remove the physical waste ink. Over time, the internal ink absorbers may overflow, so they should eventually be cleaned or replaced. canon service tool v 3900 free download better
For everyone else: You will save hours of frustration and protect your personal data. : Many "free" versions hosted on third-party sites
: It requires a direct USB connection ; it will not work over Wi-Fi. How to Use the Tool Safely the internal ink absorbers may overflow
Release both buttons. If the power light stays solid green, you are in Service Mode. :