[GreenKeys] Model 33 Progress

[Jones, Douglas W]

From:Brad via GreenKeys [greenkeys at mailman.qth.net] Friday, December 2, 2016 5:54 PM

> So I think we are about 95% of the way there with the printing unit on this 33, many thanks again to Wayne.  I have two characters that are persistent issues – L almost always comes out as H unless you hold the repeat key.  O very often comes out as a / right at the left most side then gets normal.  M sometimes is an I.  I think that’s just sticky codebars.

We've just gone through a related issue on the 33 I am working on.  If any characters start misprinting toward one margin, that means that the rear carriage rail is probably not level.  You need to go through the alignment procedure for that rail, with requires a set of feeler gauges and to reach the points in question, you need to remove the platten.  See this writeup, which contains hyperlinks to the applicable maintenance manual pages:
-- http://homepage.divms.uiowa.edu/~jones/pdp8/UI-8/log.shtml#2016-12-01

        Doug Jones
        jones at cs.uiowa.edu