film – How to print a very small design (35 microns)

Trying to print a very small design (the smallest side is 0.035 millimeters). Accuracy is very important, although this can not be read with the naked eyes of a person with normal vision.
I tried printing on a 2400 dpi laser printer, as well as a photographic LED printer on photo paper. But they are not clear, if not just a blob.