The ink level information is not displayed in when the printer driver is upgraded to v10.67.1.0.
The following problem has been rectified: OS X Mavericks v10.9 has been added as a supported OS. The internal modules have been updated. OS X Yosemite (v10.10) has been added as a supported OS. OS X El Capitan (v10.11) has been added as a supported OS. macOS Sierra (v10.12) has been added as a supported OS. macOS High Sierra (10.13) has been added as a supported OS. macOS Mojave (10.14) has been added as a supported OS. macOS Catalina (10.15) has been added as a supported OS. Modified the failure occurred by combining with Canon application. macOS Big Sur (11) has been added as a supported OS.