[GreenKeys] ASR 33 question - stop bits?

[Keith Lueck]

Hi guys - 
Brought my ASR 33 out of hibernation lately (hadn't used it in about a year).  It works fine if I manually type on it, but if I try to send it files from my pc, I find I have to use 7 bits, marking parity, and 2 stop bits (7M2) - essentially 3 stop bits; it prints perfectly with these settings.  If I use 7N2, I get occasional errors on long print runs.  
Is there something I need to re-lube?  (I don't want to just douse the thing in lube willy nilly - I lubed it pretty well after restoring it).  Should I mess with the range finder?  What else could I check?  
Obviously, the problems only occur at full speed, so, a bit difficult to troubleshoot visually.  
Thanks,
Keith
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