Canon Service Tool V.3900 Download- !!exclusive!! →

This article is for educational purposes only. Downloading and using proprietary service tools may void your warranty and violate Canon’s terms of service. The author assumes no responsibility for damage to your printer or computer.

: Using an incompatible version of the Service Tool (too old or too new for the specific model) can sometimes "lock" the printer's service mode, making it impossible to reset without physical chip replacement . Canon Service Tool V.3900 Download-