The tool will only function if the printer is in . Using it in normal operation will lead to "Error 006". Step 1: Enter Service Mode
Service tools intended for authorized technicians should be used responsibly. Some jurisdictions or vendors restrict distribution/use of manufacturer service utilities. canon service tool v.4718
Service Tool v. 4718 can/could reset the waste ink counter on the MG3500 printers. PrinterKnowledge The tool will only function if the printer is in