You can find the utility on various community and technical repositories:
The is a specialized maintenance utility designed for Canon printer owners and technicians. It is primarily used to perform critical service tasks that standard printer drivers cannot handle, most notably resetting the waste ink absorber counter (commonly known as the "pampers" or "absorber" reset) after physical maintenance. What is Canon Service Tool V.4906? Software Canon Service Tool V.4906 Download
Sites like Remont-AUD often host validated versions for service technicians. You can find the utility on various community
Clears the absorber counter to fix 5B00 errors. Software Canon Service Tool V.4906 Download