Question about Brother ML-100 Typewriter

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Striker Sticking When Erasing. Brother ML100 Typewriter

Originally, on this Brothers ML100 Typewriter, the striker simply would not move. You told me about trash in gears, cam and solenoid. After I cleaned and checked everything, the carriage would travel left, jam, and beep alarm. Second, you told me about the limit reference switch on keyboard, which fixed the travel problem. And now, the striker works fine (versus originally, not moving, at all), till I hit the erase key. Striker goes, and stays forward, jammed into the daisy wheel.

Several times, it typed fine, till I hit the erase key. The only way I can get the striker to move back to its resting place is to take top off, exposing the cam and gears, roll them some until the pressure comes off the striker and it moves freely again. Can you give me any help on this? Thank you

Posted by eddie27970 on

  • eddie27970 Sep 18, 2008

    Upstateos. sorry it has been a while getting back to you. ML100 still messing up, ...sometimes. Works a couple day, then striker stays stuck forward.

    But, found the problem! The spring was not in the right place. Took the top cover off (holding erase ribbon), tricked the return switch, and then watched the gears. Noticed, when hitting erase, it pushed the ribbons upwards, and held everything down the rest of the time. So, kept playing with spring, till I realized you put spring on "after" everything back in place. I was trying to put long tab of spring under erase ribbon cover when reassembling. This time I put all the pieces back, first, and then put on spring, and noticed it fit nicely under the adjusting tab. Now ribbon assembly jumps up and down like it is supposed to, and the striker is actually moving faster. The way I had it before, aparently had the gears in a bind, slowing the striker up, and causing it to not reset after every stroke. Thanks again for all your help. (Secretaries think it was me, not you, that figured it out. ha ha)

    You know, it would have been good to find a detailed picture of how all those parts went back together.



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Jim Keysor

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Sounds like the gears you cleaned may be dry and sticking, spray a little WD40. or that gear on the right side is still out of time. I think there is a spring clutch in the gear train which may be bad. One secret to repairs is to perform the same actions that you want the typewriter to do by hand and watch closely. You may see something not movving, or moving slow that under power you won't see.

Posted on Aug 28, 2008


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