Canon Service Tool V3400 -v 3.4 | 0.0 Download- Extra Quality ((install))
Unlike official firmware, these “extra quality” downloads are static. If your printer firmware is newer than 2019, the tool may not work — or worse, cause unpredictable behavior.
: Allows users to read and write printer information directly to the EEPROM for configuration. Canon Service Tool V3400 -v 3.4 0.0 Download- Extra Quality