Not typing the correct letters (by 3 users)

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.