There's just a paper, no paint is usually not necessary?
There is a special magazine was which paper blanks on a few dozen frames.
Plus a separate cartridge with some chemicals (now it will be difficult to find, I think, not produce already, most likely). There's something quite corrosive, I am a child of this one scratched together with a classmate, he hands a sickly burned.
Of the side effects — pictures will be always in only one size (i.e., it will not work properly to make 10x15, for example, as with conventional film). Oh and these pictures fade faster than with conventional plenochnykh. On time is not necessary — a few photos I have lying around with the 94-th year, approximately, so there is some faded at the kiss these goodbye, and some — quite think of anything.