[GreenKeys] Model 33 print issues

[Wayne Durkee]

Doug,

You ask all the hard questions......

Does the 33 ever make the #4 bit error in Local?

Is the computer sending 1 or 2 stop bits?

In Local the 33 always generates 2 stop bits due to the distributor faceplate.  

If you have an adjustment manual check the codebar reset procedure.  You can see the reset by observing the extensions that go to the tape punch.  When you type a character watch and see the slight movement of the codebars that werent marking.  They should move a few thousands to the right on reset.  Of course all the codebars move but the space codebars is where you can see the amount of reset. 

I have a 33 on the bench right now and it had a problem with one of the blocking levers sticking.  I removed the safety stop that keeps the blocking levers from moving too far up (one screw and it slides out).  There is neoprene on the bottom of the metal bar.  The blocking lever was bent badly.  I dont see how this could happen unless someone was messing around with the blocking levers.  I bent it straight and it worked perfectly.  This blocking lever was not intermittent but failed all the time.  You might check your #4 blocking lever to see if it is slightly bent or if the guide it sits in has been pinched a little bit squeezing it.

See pic with the safety stop marked with a star, the one screw to take out with a red arrow and a white circle with a crude arrow pointing to the place to see the over travel if you do the book adjustment. 

Another codebar area to check is the guide comb.  the second pic shows the guide comb and the one screw to loosen to adjust the guide.  The codebars should be in the guide with some play right and left, not biased either way.  Dont try to over tighten the one screw or it will mess up the adjustment.   

Wayne
KB1FDW
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