If you are installing a driver via a USB connection, the manual for some devices recommends not connecting the printer to your computer until after the driver installation process prompts you to do so.
If you are unable to find a driver or resolve an error, here are a few more resources: canon f91 5800 driver
For older Windows systems, follow these steps to install the driver: Connect the Device If you are installing a driver via a
If you are struggling with drivers on a modern PC, you might consider an upgrade to the CanoScan LiDE 300 canon f91 5800 driver
What and version (e.g., Windows 11, macOS Sequoia) are you installing this on?
Complete Guide to Downloading and Installing the Canon F91 5800 Driver
Follow the on-screen prompts to extract and install the ScanGear files.