Jeff, question: I've used the Microscale clear blank decal film and have used a copier for printing. And YES, the blacks are very good. But that's the limitation, black only. I've tried using an HP deskjet to print color decals, but the color never permanently sets to the film the way the black does from a copy machine.
But what is this white decal film? I see White Trim Film (02-01) on the Microscale web site, which sounds like a all white sheet for doing striping. I'm hoping for white lettering.
Norton, I appreciate that info. Yes, the Walthers and Champs were thick, so this doesn't sound too good. Even the Rail Graphics data set film was thicker than Microscale, but with some repeated applications of decal set fluid, you get get them hidden better than those of Champ and Walthers.
You idea for using the Evan Designs paper is a good one.
I've been experimenting with making paper decals, inspired by a Fred Dole article in one of the train mags (which I can't seem to find now), which requires a car with edges (like say, the Lionel 3-dome tank car) where the paper can be cut and set in-between the molded in detail of the car.
The BIG liability is getting the printed background color off the printer to match the paint color of the train car. I'm getting better at this, but I've learned that when I spray coat the paper with a clear spray, this changes the background color ever so slightly. So I have to make a color sample, spray it and then make adjustments.
A little time consuming, but compared to the ever decreasing numbers of available 0 scale decals, seems as though the options are this or having them custom made by someone.