Let's perform a test of your PIXMA MX470:
1. Load letter-sized, plain paper in the rear Tray.
2. Press the SETUP button.
3. Press the left or right button until [MAINTENANCE] is displayed in the LCD, and then press OK.
4. Press the left or right button until [Nozzle check] is displayed in the LCD, and then press OK.
Does the test page print? Is the black grid at the top of the page complete? Does your test page match the example at the bottom of this post?
What version of Windows are you using?
If you are using a Mac, what version of OSX is installed?
Are you using your PIXMA MX470 wirelessly?
Or with a USB cable?