Use Silvermaster Paper Plates for medium resolution but less costs, made in a copy camera with built-in chemical developer baths. Very cheap, costing about a quarter as much as the combined metal and film negatives. Made in a fancy copy machine from a paper positive. Not too many in use these days. Not good for more than 500 impressions.
Most copiers use a fair amount of electricity.
Each printer is different, so it is good to check with them first before you run out your film or paper positives. I don't know how an ink jet works. Except it squirts liquid plastic ink onto the paper direct from a computer disc. Not good for long runs. I left a docutech copy out in the rain, and it held up pretty well, the ink didn't bleed or fade in the sun.