Thanks Maryheff. I too have a Cannon printer "ip7200" and when I set it to "auto turn off after 15 minutes" I noticed each time it would start up to print a page, it would first go through a cleaning of the ink, and then proceed to print the page. Providing there was any ink left after the cleaning.
I'm getting ticked off with all these printer manufacturers just about giving their printers away and then making them eat ink so they can overcharge us on the ink cartridges. It's all one big scam. It's so bad that you can just about buy a new printer with ink cartridges, cheaper then buying the cartridges alone.
Not to mention that the reason for the high cost of the cartridges is the electronic chip and design that prevents the cartridge from being reused thus forcing a user to buy the overpriced ink cartridge.