Oki PT390 Manuel D'utilisation page 23

(4) Set the separator to a position appropriate for the width of
the roll paper, as shown below.
70 mm
80 mm
Separator setting in detail
Note : Adjust the separator to the width of the roll paper. To use roll paper with a
width of 83 mm, remove the separator.
Note : When using roll paper with a width of 58 or 60 mm, take care not to set the
separator at an angle.
Note : When replacing the separator, set a paper width appropriate to the print
area, referring to Appendix C, "Special Modes."
(See "C-3 Setting Up the Printer" in Appendix C, "Special Modes.")
60 mm
58 mm
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