Like the old school photographers with negatives in the darkroom, you have to remove the dust from the recoding media before enlarging or printing.
You can get a rocket blower or there are wet cleaning techniques.
Moose Peterson cleans his camera bodies,blows out the inside of the camera, and cleans the lens mount with each battery charge. He does not seem to have the problem that so many complain about. It may be oxide from the lens mount accumulates and Moose Peterson's cleaning procedure limits the accumulation.
Zoom lenses that move in and out may blow dust into the camera. so clean the barrels of your lenses.