Oki Microline Ml184T+ Handbook page 110

Graphics. Bi-directional or Uni-directional (factory default). Bi-directional
graphics print faster than uni-directional graphics, but uni-directional graphics
have better print registration. Bi-directional graphics printing can be optimized
by adjusting the Print Registration setting in the Menu.
Impact Mode.
I-Prime. Buffer Print (factory default), Buffer Clear, or Invalid. Determines
how the printer will react to the I-Prime signal from your software. With
the factory default engaged, when the printer receives the I-Prime signal,
it will print out the contents of the buffer before resetting. Change the
setting to Buffer Clear if you wish the printer to dump the contents of its
buffer immediately upon receiving the I-Prime signal. Change to Invalid
if you want the printer to ignore your software's I-Prime signal. This will
permit you to enter settings through the printer's control panel which will
not be automatically overridden by the software's settings when the I-Prime
signal is sent.
Language Set. American (factory default), French, German, British, Danish
I, Swedish, Italian, Spanish I, Japanese, Norwegian, Danish II, Spanish II,
Latin American, French Canadian, Dutch, or Publisher. Replaces certain
symbols with special characters used in the respective foreign languages.
Line Spacing. 6 lpi (factory default) or 8 lpi. Choose 8 lines per inch for
tighter line spacing, to get more lines per page.
Operator Panel Function. Full Operation or Semi Operation (factory default)
or Limited Operation. Change to Limited Operation to deactivate the TOF
SET, PRINT QUARITY and CHARACTER PITCH buttons on the control
panel. Then you can control these features only through your software.
This can be useful when several people are using the printer and you don't
want its settings changed.
D -- 8 Appendix D: Menu Selections
Selects a print mode.
Normal (factory default):Normal printing
Quiet :Quiet printing