Canon printer not printing properly refers to a common issue where a Canon printer fails to produce clear, accurate, or complete prints. This problem can manifest as faded text, streaks, smudges, blank pages, or misaligned output. It may be caused by low ink levels, clogged printheads, incorrect settings, outdated drivers, or hardware malfunctions. Troubleshooting typically involves cleaning the printhead, checking ink or toner levels, updating drivers, and ensuring proper paper alignment.