Oki 390 - Manual (Page 84)

ML390/391 Turbo Printer Handbook 77
Time Out Print. Valid (factory default) or Invalid. When printing, if the printer doesn’t
receive any data, a line feed, or a form feed signal for awhile, it will automatically
dump out what’s in the print buffer. If your software spends a long time prossing
between feeding portions of data to the printer, you should change the setting to
Invalid to keep your printer from inadvertently dumping the received data while it’s
waiting for more.
Wait Tine. 500 ms, 1 sec (factory default), or 2 sec. Sets the amount of the printer will
wait for more data before jumping from the print position up to the form tear off
position.
Zero Character. Slashed (factory default) or Unslashed. The factory default will cause
a slash to appear in zeros to distinguish them from the capital letter O. To disengage
the slashed zero, change this to Unslashed.