1. Overview The Canon Service Tool V5204 (often labeled as ST-V5204.exe ) is a proprietary, Windows-based software utility designed for service technicians to perform low-level maintenance and reset operations on Canon inkjet printers. Unlike standard printer drivers or maintenance software available to end-users, this tool interacts directly with the printer’s EEPROM and firmware.
The waste ink counter is stored in a specific EEPROM address. When reset, the tool writes zeros to that address and increments a separate “absorber replacement count” field. Using V5204 incorrectly can permanently damage the printer or void any remaining warranty. Canon Service Tool V5204
It is primarily used to reset waste ink counters, clear service errors, and change regional or hardware settings that are not accessible via the printer’s control panel or Canon’s consumer utilities. When connected to a compatible printer via USB, V5204 enables the following operations: The waste ink counter is stored in a specific EEPROM address