HP 97: Disable printer?

[Paul Berger (Canada)]

Another problem is the the 97 uses the PIK chip to scan the keyboard but the 67 does not. It can be done I used a 97 to test the chips from a non-working 67 that turned out to have a bad ACT chip. The differences in keyboard layout made it very difficult to do anything with it and I had to wire up some extra keys because the 67s layout has more rows that the 97.