printing on HP41 magnetic cards

[Martin Hepperle]

(07-11-2016 01:37 PM)Jurgen Keller Wrote:  

(07-04-2016 10:47 AM)Martin Hepperle Wrote:  The font and looks of the cards make me believe that this was done with a pen plotter (HP 7470 or similar).

I've just tried to use my 9872C plotter to label magnetic cards. The result is disappointing (and could have been found much faster): the ink of all of my pens does not adhere on the cards, so the labels get smeared already when the letters are drawn. I should have tested a pen on the magnetic card first, before turning on the plotter. It was fun anyway ;-)

Jürgen,

there are pens for paper and there are pens for transparency film.
Maybe the latter are better suited for this purpose?

I bet that the cards in questions were plotted - the character set is characteristic.

Martin