The central office printer example is one that I'm not sure about. Where I work, personal printers are banned on the basis of a "sustainability" policy that views them as energy- and resource-wasting. There is one shared printer that I admit is fantastic. Beautiful color, also scans to email or fax, it's fast, and it never seems to jam or break down (though it is nearly new). I don't print much, and I suspect many devs are the same. About the only time I print anything is when it's something needing a signature. In the past I would often print web articles that I wanted to read in depth but Readability has really helped me do that a lot less often.

So I really don't see a central printer per se as an example of an artificial scarcity. There would need to be some other shortcoming: it's old, slow, prints are full of artifacts, it jams a lot, wasting time, etc.

If I had a need to print dozens of documents a day and had to walk across the floor to get them, maybe I would see this differently.