Enter the Canon Pixma MG2522 all-in-one, currently on sale at Walmart for just $29. You'd be hard-pressed to buy a single ink cartridge for $29, let alone an entire printer.

A class action lawsuit has been filed against Canon USA alleging the company engaged in deceptive marketing and unjust enrichment practices.

Canon USA is being sued for not allowing owners of certain printers to use the scanner or faxing functions if they run out of ink.