Re: Cursed Card Reader Message #2 Posted by Raymond Del Tondo on 22 Nov 2011, 4:41 p.m., in response to message #1 by Fouad M. Kaadou
Hello,
the first things that come into mind are contact foil/spring problems, and/or battery/energy problems.
Maybe one or more of the contact springs of your card reader has a slightly different (out of line) resting position,
which may still make good contact to the foil of your 41C, but not necessarily in other HP-41 units.
Or the energy side: Did you try with the same battery pack in both calcs when using the card reader?
HTH
Ray
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