Since this is a specialized utility, your Windows Defender or Antivirus may flag it as a "False Positive." You may need to temporarily disable your real-time protection to run the executable. How to Fix: Putting Your Printer into Service Mode
Right-click the downloaded .zip file and extract it using WinRAR or 7-Zip. canon service tool v5306 free download windows 10 fix link
Service Tool v5306 is older software designed for 32-bit versions of Windows (like Windows XP or Windows 7). Modern Windows 10 and Windows 11 systems run on 64-bit architecture and have stricter security protocols (Driver Signature Enforcement) that block the tool from communicating with the printer. Since this is a specialized utility, your Windows
using Windows Defender or a reputable antivirus like Malwarebytes before extracting it. Modern Windows 10 and Windows 11 systems run
Download the Canon Service Tool V5306 ZIP archive from a reputable printer repair blog or software archive.