: Ensure the printer is in a steady green-light state before running the .exe to avoid "Error 006" (communication failure).

Technicians and advanced users who need to:

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

To download the Canon Service Tool V.3900, follow these steps:

Canon Service Tool V.3900 can help to troubleshoot common issues with your Canon printer or multifunction device. Here are some examples of common issues and how to resolve them using the tool:

: Reach out to Canon's support or your regional Canon service center. They can provide you with the necessary tools and information.

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