If the tool crashes upon opening, you likely have a compatibility issue.
The printer must be put into Service Mode (usually by a specific sequence of the Power and Stop buttons) before the tool can communicate with it. Canon Service Tool V.4718 Download UPD
The tool hummed. The printer jolted. Lights flashed. Then — silence. If the tool crashes upon opening, you likely
Perform deep cleanings and nozzle checks directly from your PC. Compatible Models If the tool crashes upon opening