Some time ago I was greeted by this message from my Canon Pixma MP640 ink jet printer, just when I needed it the most (Murphy’s law etc.).
After scouring the web for solutions I eventually found out that the issue likely was the printer head. Annoyingly enough, the B200 error code is one of the few manual entries which provide no additional information. Anyway, some suggested solutions on the web included turning the device off and wait for a couple of hours, and if that didn’t do the trick, then the recommendation was to remove the entire printer head, wash it off, let it dry and then try again.
One of the most annoying aspects of this was the fact that I had to use the scanner, but apparently, according to Canon practice: if a single part of the printer doesn’t work, then no feature works. This is sometimes even true for trivial things such as low ink levels in a cartridge.
After effectively ruining my day trying to solve this I finally just said “screw it” and put it aside. I didn’t want to wash the printer head with water, and waiting a few hours (or even days) didn’t solve the problem.
I just tried starting it the other day, a month after the incident, and lo and behold: the printer is working again. I did a quick maintenance run on it (nozzle cleaning, etc.) and did some test prints. Everything works fine.
So if you happen to run across this problem, if it’s anything like mine, the problem will solve itself (I both hate and love when this happens).
Next time though…