The printer was not placed into Service Mode correctly, or the software was opened before the printer was ready. Restart the process.
If you have a newer printer, you may need a higher version, such as v4720 or v5204. canon service tool v 4502 free download install
This report provides an overview of the Canon Service Tool V4502, a utility software used for maintenance and resetting Canon printers. While the tool is essential for specific repair tasks, obtaining it via "free download" links from unofficial sources poses significant security risks and legal implications. This report details the tool's function, installation risks, and safe alternatives. The printer was not placed into Service Mode
The Service Tool version you are using is too old for your printer model. This report provides an overview of the Canon
Many printer repair forums, such as PrinterKnowledge , often discuss or provide safe links to older versions of service tools.