Question about Brother SX-4000 Typewriter

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Need to replace print wheel

I think I need to replace the print wheel. Is this something I can do myself? Where do I find directions? The print wheel is apparently out of alignment and is very loose in the holder. Is this normal, how do I align it correctly to print the correct letter when the key is pressed?

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Re: need to replace print wheel

Make sure the hammer is snapped all the way back it takes a little pressure to get it to latch it then should find its home position on is own.

Posted on Nov 20, 2007

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Print wheels are prone to the type of failure you describe. The usual repair used to be replacement.

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When I type, the hammer does not engage the letter on the print wheel. Is this an easy fix I can do myself?

There is a spacer on the hammer solenoid that falls apart over time. It must be replaced. Any local typewriter repair facility should be able to get and install the part. This is the most common problem on the wheelwriters. The ibm part # is 20-71. It is a little difficult to to do this replacement if you are not a technician. But, it should take no more than 30 minutes to replace and clean the machine

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When I type, the hammer does not engage the letter on the print wheel. Is this an easy fix I can do myself?

You have a broken print solenoid cap. We sell them for 20.00 with instructions.

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Feb 10, 2015 | IBM Wheelwriter 6 Typewriter

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How do i change the font on my GX-6750 Typewriter

The Font or letter size is depends to your printing fonts or daisy wheel. Buy a different Font size of daisy wheel or printing wheel.

Jul 07, 2014 | Brother GX-6750 Typewriter

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If it types something in place of the letter you need a printwheel, if it dosent do anything (print or space) the key board is the problem.


Sep 22, 2010 | Typewriters

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Wrong keys printing

I have sent you the manual

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Aug 19, 2008 | Brother GX-6750 Typewriter

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Does it print something in place of the 9 or does it do nothing at all? If it prints 2 vertical lines the printwheel is bad, if nothing at all happens at the least you need the keyboard contacts cleaned.


Jul 07, 2008 | Typewriters

1 Answer

Not printing

The Brother portable typewriters are pure junk. No longer suported by Brother. Next time spend a little more money and purchase a Nakajima typewriter.

May 13, 2008 | Brother ML-100 Typewriter

1 Answer

Not typing the correct letters

The ML-300 needs to be reset each time the Daisy Wheel is removed or replaced or if the Keyboard Switch changes position. According to Brother, if this is not done the typewriter will print incorrect characters. Try these steps: 1) Open the Top Cover. There is a lever directly behind the Daisy Wheel. Pull the lever back towards you. Remove the Daisy Wheel by pulling it up and out. 2) Verify that it is the Standard Daisy Wheel that came with your machine and not a Symbol or International Daisey Wheel. Write down the Pitch (10, 12, or dual pitch 1012) printed on the wheel. 3) Reinstall the Daisy Wheel (the plastic top ear goes to your right.) Push the lever (step 1) forward. 4) Press the ALT key plus the PITCH key and the number 1 key simultaneously. Verify the Pitch setting is the same as is printed on the Daisy Wheel. 5) Press the CODE key plus the RESET key and the letter Q key simultaneously. This will reset the typewriter mechanism and align (or time, in technical terms) the carriage mechanism. Check if the typewriter prints correctly now. If still incorrect, perform these additional steps. 6) Verify the three position Keyboard Switch (inside the top cover, on the right side, at the bottom) is in the I=Standard position. The other positions are: II=International and III=Symbol. 7) If the Keyboard Switch is in the correct position, slide it to position III and then back to I. (This will clean the switch contacts in case they are dirty and not making good electrical contact. 8) Press the CODE key plus the RESET key and the letter Q key combination again to reset the typewriter mechanism. Check if the typewriter prints correctly now. If still incorrect, the only other things I can think of is that: 1) an incorrect Daisy Wheel is installed that does not work in the ML-300. Brother sell a "B type" Daisy Wheel with two plastic ridges/raised slots below the center of the Daisy Wheel (viewed with the raised top tab on your left.) The B type are incompatible with your machine. 2) the typewriter has failed and needs repair.

Sep 28, 2007 | Brother ML-300 Typewriter

1 Answer

Need to replace print wheel

the print (daisy) wheel has a lock lever on the right hand side, pull toward you to release, push forward to lock back in place.

Apr 25, 2007 | Brother GX-6750 Typewriter

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