Most applications that allow you to compose documents don't require you to save before printing. Simply locating and clicking on the "Print" command will open up a dialogue box letting you finalize your print settings, whereupon your document should begin printing.
Not all applications function the same way, however, and so for the Community to be able to help you better, we will need to know exactly which applications you're trying to print your documents from. That, and any other details you'd like to give will help the Community better understand your issue!
If this is a time-sensitive matter, our US-based technical support team is standing by, ready to help 24/7 via Email at http://bit.ly/EmailCanon or by phone at 1-800-OK-CANON (1-800-652-2666) weekdays between 10 AM and 10 PM ET (7 AM to 7 PM PT).
Thanks and have a great day!