OKIDATA ML590 Service Manual page 210

Once the paper is correctly loaded, press and release the
and press the RESET
11. Word processor files do not print the way the MENU and front panel are set.
Before sending a file to the printer, many word processors send either an initialization string or an
I-Prime signal to the printer.
The initialization string contains codes that reset the printer to a default set of features. Otherwise,
the printer might accidentally print using features set for a previous job. These codes will override
the panel or MENU settings. To set your printer to ignore the reset codes, enter the printer MENU
(hold down the SHIFT
(in the Setup Group) to Yes. Please note that while this will stop the reset code from resetting your
printer, other codes in the initialization string may still override the printer MENU and / or front
panel settings.
The I-Prime signal is sent over the parallel interface (pin31) and will automatically override any
settings you have made using the front panel buttons. To eliminate this problem, enter the Menu
Mode (hold down the SHIFT
item (in the Parallel I/F Group) to Invalid.
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(Character Pitch) button.
button while pressing SEL/MENU
button while pressing
SEL button, then hold the
button) and change the Reset Inhibit item
SEL/MENU button) and change the I-Prime
SHIFT button