John (@johnb), decals can be printed in a laser and in fact will be superior to those printed on an inkjet. The important thing to remember is that there are two types of decal sheets, one for laser printers and one for inkjet printers. Additionally, you have to consider how you are going to handle lighter colors. They can be somewhat translucent sometimes. Decal sheets come in clear and white backgrounds.
When you need a white area or need to improve the look of a color (for example yellow or red), you can either mask and spray the area directly underneath with white or create an exact size version on the white decal paper and lay it down first (it needs to dry before you put the second one on top). Obviously, clear sheets are for decals that need a clear backing.
Decal sheets are a single sheet when printed so you will have to cut out the decal. I would recommend a sharp set of decal scissors or a brand new X-acto blade.
Also critical, especially with inkjet decals, but I believe laser as well, and that is to get a spray decal clear film and spray the sheet before using the decals.Otherwise the ink will run when you wet the decals to apply them. With self printed decals, you open up a lot of possibilities, but it is best to test these first before applying to your model. And I would also suggest test printing on regular paper to make sure you have the sizes correct.
