It uses pens and can be used as a plotter.
It prints/plots on till-roll like paper.
It was working when I put it away in its box about 20 years ago. I can't test it to see if it still works.
I tried to sell it ($1 reserve) on TradeMe but noboday bid for it.
I am offering for the cost of postage only to the first person who PMs me about it.
Here is a picture of an MCP-40, cobranded for use with the Oric home computer:
If you want it, just let me know and it's yours!