Question about Brother SX-4000 Typewriter

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Margin release on SX-4000 Typewritter

I am unable to release the magins on the right or left. Thank you, danna

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  • Anonymous Nov 09, 2007

    i need the instruction manual for this typewriter

  • whalerumo Nov 15, 2007

    need to set margins help

  • Anonymous Nov 28, 2007

    I am having a problem with releasing the margin. I have tried holding the code key and pressing the M rel key. I do not even hear a beep

  • Anonymous Dec 14, 2007

    i have the same problem



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Actually this is incorrect. Move to the Left [Backspace] or Right [Spacebar] depending on which margin you wish to change until it beeps. You hold down [ALT] and press [3] M REL, then move left or right again until you get where you want, then Hold [ALT] and press either [4] L MAR or [5] R MAR.

As a side note the Manual for this Typewriter IS available at Brother's website at

Hope this helps!

Posted on Jan 04, 2008

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Hold down code key, then press rel.M key after it beeps.

Posted on May 01, 2007


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How do you release the right margin on a brother sx-4000 typewriter

by using the MR key or on some machines it is called M REL

Dec 14, 2010 | Brother SX-4000 Typewriter

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How do i release the margins to extend them out on the brothers sx-4000


Most of these small portable typewriters had a lot of "dual function keys".
What this means is some of the keys on the keyboard will have writing on the top and on the front of the keys. The color of the writing on the keys is usually different on the front then it is on the top. So if you need to use a dual function key you have to find the "mode" or "code" key to use in conjunction with these dual function keys. For example: the left and right margin keys could be on the same key. to access the one on the front of the key you have to hold down the "code" or "mode" key while pressing the dual function key. What you should be looking for is something that says MAR REL (margin release) > If it is on the top of the key then all you need to do is press it once and then backspace through your present left margin and then reset the left margin at that point. For the right margin just space over to it and press the margin release key again and then space over to where you want the right margin and reset it there by pressing the right margin key.

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May 22, 2010 | Brother SX-4000 Typewriter

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How do I do a left or right margin release??


You need to release both the margins before being able to set them again or to get rid of them all together.

To release the margins, you need to press the "alt" button and the number 3.

This should release both the left and the right margins, so if you only wanted 1 reset, you will need to set the one you wanted to keep over again.



Apr 09, 2010 | Brother SX-4000 Typewriter

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Margine release ?

Go to, click on support you will find downloadable manual there.


Mar 28, 2010 | Brother SX-4000 Typewriter

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Changing margins

To change or reset margins, the keys involved are the ALT key to the left of the spacebar, the #keys 3,4, & 5.

The ALT & '3' keys are used to bypass the set margins.

To bypass the left margin, move the carrier to the left margin. Press the ALT & '3' keys at the same time. Release them then backspace the carrier to the point the new margin is wanted. Press the ALT and '4' keys at the same time to set the new left margin.

To bypass the right margin, move the carrier to the right margin. Press the ALT & '3' keys at the same time. Release them and spacebar to the point where the new right margin is wanted. Press the ALT & '5' keys to set the new right margin.
The main thing to remember is to move the carrier to the point where the new margin is needed. ALT + 3 bypasses old margins, ALT + 4 sets the left margin, & ALT + 5 sets the right margin.

Feb 24, 2010 | Brother SX-4000 Typewriter

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I lost the manual for my sx-4000. How do I release the margins.

  1. Press "return" key to left margin.
  2. Press "margin release" key once.
  3. Backspace to where you want the left margin
  4. Press "Margin left" key.
For right margin, space bar to where it is, press margin release, space bar to where you want it, press "margin right" key.

Dec 10, 2009 | Office Equipment & Supplies

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