First, ensure all cables are securely connected. Next, check for paper jams and remove any obstructions. If print quality is poor, perform a nozzle check and clean the printhead if necessary. For connectivity issues, restart your printer and router. If it still doesn't work, reinstall the printer drivers. If documents aren't printing correctly, verify the print settings and adjust as needed. Lastly, if all else fails, consult the Canon support website or contact their customer service for further assistance.