Ensure the manufacturer's seal is present after purchasing the Canon printer. Unseal the printer box and check if it contains any printer components. Remove the Canon printer from the box and position it on a flat surface that is dust-free. Remove the printer's packaging and protective materials. Load the documents into the main tray. Plug the power cable into the appropriate port of the printer and power supply of the Canon mg3620 Setup . Turn the printer on and configure its control panel preferences. Install the ink cartridges and finish setting up the printer for the first time.