How can I resolve a Canon Pixma printer showing error 5100?

To resolve error 5100, first, turn off the printer and unplug it. Open the printer cover and manually move the print head carriage to the center. Check for any obstructions like paper fragments or foreign objects. Ensure the carriage moves smoothly. If clear, close the cover, plug it back in, and turn it on. If the error persists, the print head might need cleaning or replacement.