As a (fairly) new owner of a thermofax machine, I've found that making a good screen is a little more challenging than I expected. There are several variables that must be taken into account - the density of the design, whether it is fine-lined or has large areas of black (or both), speed of processing through the machine, and whether or not you use a carrier. My friend Elizabeth and I spent some time over the last week trying to find the right combination - of course, it may be slightly different for each design. At any rate, we were quite thrilled to have success at improving on screens that didn't print as clearly as we wanted them to. Here are a few examples of test prints.