I have the nikon d100, I also have the eclipse and pec-pad swabs. A step by step for the nikon for me, from my reading cause I had dust from day 1, and not happy.
first thing is to open the shutter, on the d100 this can be done with the power cord attached and in menu, open shutter. I would then use an air bulb first. With the battery the sensor would remain charged and the dust would not move. With the cord the sensor loses the static charge and sometimes the dust can be dislodged with the bulb. This is my first and preferable thing to try because no one likes to mess with the sensor.
That don't work..oh boy..ok...what i did was optain a smallish spatula and I cut it down to the width of the sensor. I also cut a bit off the end so it wasn't as flexible but not enough to make it overly stiff. I cover it with the pec-pad and apply eclipse solution to the pad, Don't put to much, you want enough to make the pad glide easily over the sensor with out any scratching. Shouldn't scratch with a pec-pad anyway but the dust could be abrasive. As I move the pad across the sensor, I start at an angle and gradually roll up toward the tip. This way if I do pick up dust, I am moving it up and away from the sensor, not toward it or dragging it along.
Never reuse the pad.
Before closing the shutter, make sure it is dry. Lightly blow with the air bulb to creat some flow.
Another thing, how I do this is on the tripod with the tripod as high as it goes and the camera tilted downward. I figure if any more dust is in the air, why let it drift into the camera.
Later...hope this helps
by Robear, out of the shadows and back again...