Canon Printer Prints Blank Pages

All of a sudden my Canon (S820) printer has been sending out blank pages - it sounds like it is printing (sounds normal) but the pages come out blank. I check the ink cartridge (just put a new one in). Downloaded updated drivers from Canon and also reset to default as well as reset printing system. And also ran deep cleaning. Turn it off, left it off for awhile, turned it back on. Also turned off my computer and restarted. Won't even print a test page - it sounds like it is printing, but only blank pages come out. Any other suggestions?

It printed fine yesterday but today, blank pages. Any help would be appreciated! Thanks.