Adjusting Ring & Cylinder on a Brother JP-1

Weapon of Choice: 1978 Brother Charger 11 #K83712885
Typewriter Club LIVE: 2022-01-23

Time to make some notes in your JP-1 Repair Bible. You make notes in your Bible, right?

The following pages are from the Silver-Seiko 700 Series Repair Bible, and they have a clearer explanation of the process of Ring & Cylinder/Platen Parallel and On-Feet & Motion adjustments. Note that the SS700 has a different adjustment from the JP-1 for R&C, but the adjustment process is the same, except for the part at the end about adjusting the linespacing detent. You won’t need to do that on a JP-1 because the R&C adjustment moves the whole carriage, not the cylinder assembly itself.

If you have a Silver-Seiko 700 (Royal Mercury/Mustang/Sprite/Swinger, etc and a couple dozen other badgings) then I really recommend getting a copy of its Repair Bible, just to read through for the very clear explanations of the various adjustments. You’ll learn a great deal about basic typewriter mechanisms and adjustments from it. (:

Updated: January 23, 2022 — 4:48 pm

6 Comments

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  1. Oh! Thank you for this, Ted. Carlos will be delighted. I will message him the link on Type Pals. The adjustment seems much easier on this typer with the sliding adjustment. On the Royal FPE wide carriage I had, it basically sounded like a nightmare.

  2. Yay, I knew you’d know! I believe you talked about this on another TCL meeting. Thanks for posting the supplemental adjusting instructions. I’m going to print it and add it to the JP-1 bible. P.S. That Charger 11 sure does make a nice looking print! I like mine too.

    1. Now I have to get another Brother Charger 11! I gifted mine to my niece.

  3. Very useful! Thank you.

  4. Hey Reverend,

    Long-time fan, first poster. This is supremely helpful. I am trying to address what is just a general lightness of imprint on my Olympia Socialite, and this site seems to make a case both that ring & cylinder are in play and that this would be the correct way to go about it on that machine. Do you concur re: which screws and how?

    https://ber10thal.com/blog/repairing-a-1961-olympia-sf/

    The machine is nearly flawless other than this issue, and I don’t want to mess something else up trying to get it all the way too 100%…such a familiar feeling…

    I also love the Brother Charger 11–I gifted mine to my son and am always on the lookout for another!

    Thanks for all your fine service to the community!

    1. yep, that looks right, you’re moving the rails (and thus the platen) closer to the ring. Couldn’t say for sure, as I don’t have any SFs. (:

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