Removing ink stains can be tricky as unfortunately lino does tend to stain easily. However, I do have some suggestions which will, hopefully, work.
- The first thing to try is hairspray. I know it sounds crazy, but it does work.
- Pure alcohol is another good one too - try to use vodka as there is no colour to it and very little smell. Rubbing alcohol will work too.
- WD40 is another recommendation; it works for so many things and I have heard that ink stains on lino is amongst them.
- If the above don't work, you may have to try a medium scrubbing pad or some wire wool, but please be as gentle as possible.
If you do have to resort to the scouring idea, you will need to apply wax to the area afterwards to protect it.
Also, please make sure that you test a small area that is unlikely to be seen before using any of the above. They should all be fine, but it is best to be safe - good luck!