BWAHAHAHAHAH!!
I have never had to deal with bthese people before, but I do know what I would do:
Scammer: Could I have your photocopier model number please?
Me: Why?
Scammer: So we will know which toner you would like to order.
Me: Well, our copier doesn’t use toner. It’s the latest in technology. A Toshiba Mimeograph.