How do you clean the sensor on a DSLR Camera?

Check out this link, it is on Micro-Tools website which stocks lots of repair and cleaning tools.

http://www.cleaningdigitalcameras.com/index.html

Cleaning the sensor is not for the faint of heart - if you screw it up, your camera is junk. Having said that, it's not very complicated, and thousands upon thousands of people do it.

Before you start, make sure you NEED to get in there - it could be dead/ hot pixels you're looking at in your prints.

And when you do start, take it in steps. Begin with a rocket blower. If that doesn't work, use a dry brush. As a last resort use swabs/ a spatula, etc.

Also, don't improrvise your cleaning gear - buy a kit. Sure fire ways to wreck your camera include using compressed air, paint brushes, home made solvents, etc.

There are many kits on the market, but the one that keeps popping up as easy to use, effective, and 'cheap', is the one from Copperhill: http://www.copperhillimages.com/