What troubleshooting steps should I take if my Canon E510 is not printing at all?

If your printer isn't printing, check if the power is on. Ensure the printer is connected to the computer (USB or Wi-Fi). Verify that the correct paper type is loaded and that there are no paper jams. Check the ink levels. Try printing a test page from the printer's control panel or the printer driver on your computer. Also, check for any recent software updates that might be causing the problem.