: Not all models are supported. For some printers, such as the Pro-300, reports indicate that V5204 may not work at all. Additionally, there are models that cannot be reset even with this tool, known as "disposable" models, which include the E40x, E41x, IP28xx, MG24xx, and MG29xx series.
To verify communication, click the "EEPROM" button. If the tool can read your printer's EEPROM information, you have successfully established communication. If you receive an error (006 or 005), the printer is not properly in service mode. canon service tool v5204 upd download