Oki Microline Ml184T+ Handbook page 112

Print Suppress Effective. Yes (factory default) or No. Enables/disables
print suppress command. The factory default enables the print suppress
command: the printer will ignore all data it receives after it accepts the
print suppress command. Change to No to cause your printer to ignore the
print suppress command.
Proportional Spacing. No (factory default) or Yes. Change to Yes to engage
proportional spacing of characters.
Receive Buffer Size. 64K (factory default), 1 Line, 32K, or 128K. Selects
the amount of memory devoted to holding received data. Choosing 1 Line
will tie up your computer during printing, but if you about the print job the
printer will stop printing much sooner.
Reset Inhibit. No (factory default) or Yes. Change to Yes if you want your
printer to ignore the reset command sent by software. This will prevent
your software reset command from changing the settings you have made
through the front panel controls or through printer commands. If you engage
this feature, don't forget that it will also prevent your software from clearing
out existing settings when you finish printing one document and switch to
another.
SI Select Pitch (10 CPI). IBM mode only. 17.1 CPI (factory default) or
15 CPI. Sets what pitch (17.1 or 15 characters per inch) will be engaged
when the printer control panel is set for 10 cpi and the SI command is
received.
SI Select Pitch (12 CPI). IBM mode only. 20 CPI or 12 CPI (factory default).
Sets what pitch (20 or 12 characters per inch) will be engaged when the
printer control panel is set for 12 cpi and the SI command is received.
Size. Choose Single (factory default) or Double width and height printing.
D -- 10 Appendix D: Menu Selections