HP-19C Printer

[teenix]

Thanks for the reply Jonas, your assumptions were correct.

It is interesting that the 19C code has a paper out test instruction although this appears to correspond to the Power OK flag.

Maybe this is a clue to look for as this flag produces the same error when it is intentionally held in a faulty state.

I also just noticed that the Paper Out instruction is not a PICK instruction as I thought, it is internal to the ACT.

I thought there might of been a broken print head drive pin, but maybe the spring you mention (and/or maybe the pin) went AWOL if it was repaired before.

cheers

Tony