My printer, all of a sudden, is printing teeny, tiny letters. I have searched through my online manual, checked troubleshooting but can find nothing pertaining to the size of the letters or any way to adjust printing size. I can't even find anything that indicates this printer can print different size fonts.

Can someone help me, please?
Thank you!Does this happen if you print different documents?

I'm guessing you've turned off the printer, and turned it on again? I would turn off the printer, unplug it for about 30 seconds, PLUG it in again, and try printing a short document, again.

Are you printing a document, or from SOMETHING on line?

What MODEL Canon printer do you have?

(Welcome to the forum!)We don't know the model of Canon printer. We don't know what program you are using for the created document you are trying to print. We don't know what your monitor resolution is set to. So without all that it is difficult to know where the problem lies. However here is a general response that may assist you to zero in on where to look for a solution.
http://answers.yahoo.com/question/index?qid=20090301061712AAo2R56
good luck,truenorthIn my CASE, my printer is not printing the desired output. It seems that there are lined up printing activities. And I cant also locate the printer file in control panel.. a lot of ink was wasted.tonerzone, If your post is solely to demonstrate empathy for the original poster by sharing your own current printer problem it may be of some comfort to the O/P. If however your post is to elicit assistance from members of the CH forums you NEED to create your own post for help to occur. Piggybacking on another's post is not good forum etiquette.truenorth