The ACMS Has a Digital (DEC) LVP16 Plotter which is effectively a rebadged HP 7475A.
Thanks for Josh and Jefferson the unit has bene cleaned up as it was in pretty bad condition.
Adrian (myself) replaced the Geneva wheel with a 3D replacement. His own HP 7475A Geneva wheel also shattered - the plastic they were made with has become brittle and smooth.
The pens have been cleaned up, and we can modify them to work again following the following great link page.
The Rollers need new rubber gum installed and the motor which moves the paper forward and reverse is jammed and needs to be cleaned.
