If you have installed the driver but the device still shows up as "Unknown Device" or "Canon FU78783" with a yellow exclamation mark:
Also download the User Manual and Scan Utility if available for your model. canon fu78783 driver download install
By using this guide, you avoid malicious third-party drivers, ensure full print and scan functionality, and keep your Canon printer running reliably for years to come. If you have installed the driver but the