Jim
Sorry, cannot help you there.
We all have to live with typists errors. Hopefully those back then were a bit more trained on their 'pet' machines.
Back in the early 70's when I started to work as an apprentice I was given the worst typewriter anyone could imagine. The number of faults were numerous mostly due to the fact I always felt I needed a hammer to make the darn thing work...
Cheers
Stig