We have been using color 253 grey for out base sheet for years now and have had not problem. Recently, our base sheet (color 253 grey) have been plotting out with dots all over it. I thought it would be just the base sheet, but I drew a solid line in 253 and I received the same effect.
I have sent the drawings to various other plotters and printer and it ALWAYS plots and prints in dots instead of solid lines or dashed lines.
Please, help this is an ongoing problem.
What is your screening % set at for that color?