Canon printer printing blurry refers to an issue where a Canon printer produces documents or images with unclear, smudged, or fuzzy text and graphics. This problem can result from various causes, such as misaligned print heads, dirty or clogged nozzles, low-quality paper, outdated drivers, or incorrect printer settings. Troubleshooting steps often include cleaning the print head, using the correct paper type, aligning the printer, or updating the software.