: The primary function is to clear the "ink absorber full" error, which typically prevents the printer from operating. Maintenance Operations

To use the tool, the printer must first be placed into via a specific sequence of button presses. Furthermore, the tool generally requires a USB connection to communicate with the printer; it typically cannot perform these deep maintenance tasks over a Wi-Fi or LAN connection. While some older versions were free, many newer or verified versions are now sold through third-party sites like ORPYS . Canon Service Tool instructions !... - PrinterKnowledge