If you answered

"Artists seek out printers who can use this method because they charge less money."

Sorry, that's the wrong response.

The roller you see in this picture
has a very soft surface, the kind
you would need to use viscosity
printing method.

 If anything, they'd charge more money.

Viscosity printing is not a common printing process. Very few art schools that have printmaking classes teach it. That's because, to get the full benefit of viscosity printing, you need at least two specially-designed hand printing rollers - one that is harder than the other on its surface.

Try another choice.

- GM