My Canon printer is showing an error, but the paper isn't jammed. What could be the problem?

If there's no paper jam, the issue could be related to the print head. The print head might be clogged with dried ink, preventing proper printing. You can usually resolve this by running the printer's built-in print head cleaning utility. Some printers also have a deep cleaning option for more stubborn clogs. Another possibility is a firmware issue requiring a printer update.