How do I clean the printhead on my Canon i70 printer?First try to clean with lint-free cloth and clean water. Soak the cloth with water and wipe the print head. Leave it for 2 minutes in wet condition. Try to smear off the clogged ink. If the result is not good try cleaning similarly with isopropyl alcohol. If it's still not OK you can try with liquid ammonia. Just be careful because liquid ammonia is toxic when taken in.
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