Re: Weak 9872CT Plotter Platen

Martin Hepperle
 

Kuba,

thank you for the many hints and the good explanation of the theory of operation.
I'll check what happens when I place some aluminum foil on the platen.
Next week i will talk with my colleagues in the electronics lab whether they have suitable test equipment - I only have a cheap DVM and some HP 3456 and 3478 voltmeters.

BTW: I still have my Roland DXF-990 flatbed plotter which I bought in the early 1990s - HP plotters were too expensive for me and the Roland has a nice X-Y-coordinate display.

Martin

Join VintHPcom@groups.io to automatically receive all group messages.