[GreenKeys] Model 33 ribbon advance constantly on

Troy Peterson troy at codemaven.me
Mon May 30 08:16:59 EDT 2022


Hi All,

I've finished completely cleaning and re-oiling my model 33 ASR, and 
after checking everything over as best as I could I decided it was time 
to get things moving again so I've put the motor back in and put the 
belt on. Here's a short video of it:
https://youtube.com/shorts/dcXCMkHSOyU

This is just the printer section motor running directly from AC off of a 
variac. It's only running at around 90v and drawing between 1 and 1.5 
amp.  One thing that seems odd to me is the ribbon ratchet seems to 
continuously feed forward. Is this normal?  The hammer is moving, but 
not actually striking the printhead and I believe that to be normal in 
this state but it seems strange that the ribbon would always spool when 
it's not printing...  Does the ribbon always continue to feed (and 
autoreverse) on these machines when it's running?

However, comparing with this video it looks to me light it might be 
normal, but I can't see the far end on that video to be sure it's the 
same as mine.
https://www.youtube.com/watch?v=mZ8XH-jopP4&t=420s



Thanky-You,
Troy




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