The Pentax O-ICK1 Image Sensor Cleaning Kit is great for getting rid of dust particles, oil, and other substances on the image sensor. The kit contains a cleaning stick with a special polyurethane rubber tip and special paper.
To clean the sensor just press the tip of the cleaning stick onto the low-pass filter covering the sensor. Then wipe away the dirt on the cleaning stick 's tip with the special paper.
For Pentax SLR Digital Cameras