When your CCD gets dirty on your Phase One digital back, usually you will utilize a blower bulb to expel any minor particles. If your CCD requires a more thorough cleaning I might recommend using Digi Clean.
Note that we recommend using only the “Solution B” which is an alcohol for the vast majority of cleaning. If you use Solution A which is a soap you will have to clean with Solution B several times to remove Solution A. So Solution A should only be used when the sensor has some form of (non abrasive) guck on it rather than just some stubborn dust.