Update: As TMJB mentioned, cleaning the print head is the solution, but since I didn't see it in the user manual, I was unsure how to do it. Fortunately, I found a video on-line that showed how to remove the print head. Once I did, I put it in a bow...
I seem to have the same problem: I have a Canon PRO-10S printer I haven't used in a while. I replaced all of the ink cartridges -- with Canon originals. At first, four colors would not print. I ran Deep Cleaning process a few times, waited at lea...
