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| Problem | Solution | |---------|----------| | | Ensure you selected the exact model: TR6640 (not TR6600 series). | | Wireless not connecting | Use the Canon Print Inkjet/SELPHY app on your phone to set up Wi-Fi. | | Scanner not detected | Install IJ Scan Utility or ScanGear MP separately. | | Print quality poor | Run nozzle check & head cleaning from printer maintenance menu. |
Below is a guide on where to find the driver, which version you need, and how to install it. canon 66400 driver