Canon Service Tool V.3900 Download -

  • Version v.3900 refers to a particular release; functionality may vary by printer model and region.

    • | Error Message | Likely Cause | Solution | |---------------|--------------|----------| | "Error 005" | USB connection lost | Re-enter service mode, use a different USB port/cable. | | "Error 002" | Wrong printer model | V3900 does not support your model. Find a newer tool. | | "Timeout" | Printer not in service mode | Repeat the button sequence precisely. | | Antivirus blocks .exe | False positive | Temporarily disable real-time protection, or run in a virtual machine. |

    Using unofficial service tools may void warranty and could be against Canon’s terms. Do not share or distribute copyrighted installers. Canon Service Tool V.3900 Download