The tool will not recognize your printer unless the device is in Service Mode
It is part of Canon’s SST (Service Support Tool) family, with version representing a specific build—likely intended for legacy or mid-2010s Canon models (e.g., certain imageRUNNER, imageCLASS, or PIXMA series).
The is a specialized maintenance utility used to manage internal printer settings and clear error states on various Canon PIXMA and MAXIFY inkjet models. Its primary application is resetting the Waste Ink Absorber counter (often referred to as the "pampers" reset). Technical Overview
While powerful, the Canon Service Tool V.4906 carries significant risks if used incorrectly:
Below is a guide on what this tool does, compatibility, and how to use it safely.