Some artists use the term "monotype" to describe the technique, whereas others refer to it as a "monoprint"

What is a "monotype"?

A monotype is an image made by the transfer of ink from a surface onto paper. No printing plate is used.

A monoprint is a one off print (or impression) from some kind of printing plate (or matrix) made by the artist. For example, a linocut can be inked, worked on and printed in such a way that only one copy will exist, instead of a series of identical prints (or edition)

Monotype is a simple and direct method for making one off prints. There are a few different techniques but all of them involve using pressure (een if it is just hand pressure) to transfer ink from a surface onto paper. 

The artwork below by Nick Christie was made using a plastic plate and had drawn marks, printed with a press for added detail.

Here, Alfons  Bytautas makes use of trace monotype and paper collage in his one off impressions.

Pictured below, art student Leah Coxon experimented with mono printing as part of her portfolio development. Mono printing allows the artist with the freedom to play and test out ideas quickly, whilst also exploring mark making.