William Sommerwerck wrote in message
...
I'm thinking of removing the lower 7 pins from the head
and then trying to work 8 and 9 free. I wonder how difficult
reassembly will be. Does anyone have a clever solution?

WD-40?

Seriously...

They could very well be "welded" in place.




WD40 was for bringing back dried out ribbons, a squirt inside the cartridge,


When I visited Bletchley Park someone had just resuscitated/converted one of
those programs that made impact printers play a tune percussively , great
way to annoy IT staff in the batch-processing days