How do I clean the print head 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 Iso Propyle alcohol. If still not OK you can try with liquid ammonia. However liquid ammonia is dangerous material to keep at home as it looks like water and by drinking it accidentally may kill a person.