There is no official download from Canon. Any source is third-party. Many websites offering “free download” bundle the tool with malware, adware, or trojans. Proceed with extreme caution.

Canon Service Tool 5306: Complete Download & Usage Guide If your Canon printer has suddenly stopped working and is flashing lights or displaying an error code like or 1700 , you likely need to reset the waste ink absorber counter . The Canon Service Tool 5306 is a maintenance utility specifically designed to address these system-level issues that standard printer drivers cannot fix. What is Canon Service Tool 5306?

Then the printer died. Completely. No lights, no response.