Brother 580C - Manual (Page 114)

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by 1. However, if either of these keys are held down, the setting will continue
changing in step of 5 until the key is released.
+
The default setting of the highlighted parameter can be selected by
pressing the SPACE key or all special print settings can be returned
to their default settings by holding down the CODE key and pressing
the SPACE key.
(4) Repeat step (2) and (3) until your desired settings are displayed.
(5) Press the RETURN key. The labels are printed using the print parameter that
have been set.