OSR
OKIDATA 320
Printing method . . . . . . . . . . . . . 9-pin impact dot matrix
Carriage width . . . . . . . . . . . . . . 8.0 inches
Print speed . . . . . . . . . . . . . . . . . Utility 250cps, NLQ 62.5cps,
HSD 300cps
Print direction . . . . . . . . . . . . . . Bidirectional, logic seeking
Emulation . . . . . . . . . . . . . . . . . . Microline (ML only)
Epson FXe - IBM Pro (EI only)
Interface . . . . . . . . . . . . . . . . . . . Centronics parallel, RS-232 serial (option)
Print head life . . . . . . . . . . . . . . . 200 million characters
Ribbon life . . . . . . . . . . . . . . . . . 2 million characters
Paper . . . . . . . . . . . . . . . . . . . . . . Cut sheet, 12-24lb, 8.5 x 11
Continuous, 3" - 10" wide up to 5 part
Options . . . . . . . . . . . . . . . . . . . . Cut sheet feeder, pull tractor with acoustic
cover, RS-232C I/F
Control Panel
SEL MODE LINE FORM PARK TOF/
FEED FEED QUIET
ALARM GROUP ITEM SET PRINT
POWER
MENU
PRINT QUALITY
HSD UTL
NLQ
CHARACTER PITCH
10 12 17
20 PROP
INDICATORS
SEL light - When on, indicates that the printer is online. When off, indicates that
the printer is offline. When flashing, indicates the print suppress condition and
ignores all data until the condition is cleared.
ALARM light - When on continuously, indicates paper out. When flashing,
indicates hardware fault.
POWER light - When lit, indicates that power is turned on.
MENU light - When lit continuously, indicates menu mode has been entered.
When flashing, indicates a thermal condition on the print head.
There are also LED indicators for print quality and cpi selections.
OPERATOR KEYS
Some operator keys are dual function keys. When in normal operating mode,
the keys perform the functions of the labels at the top of the keys. When in
menu mode, the keys perform the functions of the labels at the bottom of the
keys.
SEL key - Toggles the printer online and offline.
MODE key - Press this key to enter the menu mode for printer setup.
LINE FEED/GROUP key - When in normal operating mode, pressing this key
advances paper one line at the current lpi setting. When in menu mode,
pressing this key allows group selection.
FORM FEED/ITEM key - When in normal operating mode, pressing this key
will advance paper to the next top of form. When in menu mode, pressing this
key allows items selections.
PARK/SET key - When in normal operating mode, pressing this key will park
paper in the forms tractors. When in menu mode, pressing this key will change
settings of items in a group.
TOF/QUIET/PRINT key - When offline and in normal operating mode,
pressing this key will set the top of form at the current paper position. When
online, and in normal operating mode, pressing this key will put the printer in a
quiet mode of operation. When in menu mode, pressing this key will print a
complete menu list at any time.
PRINT QUALITY key - Pressing this key will toggle print quality selection
between NLQ (near letter quality), UTL (utility), and HSD (high speed draft).
CHARACTER PITCH key - Pressing this key will toggle character per inch
(cpi) selections as indicated. Proportional spacing is not available in HSD.
Self-test
Rolling ASCII - While holding the TOF/QUIET key down, turn on power to
start the test. This test prints a header with the printer model, firmware revision,
firmware part number, and emulation. And then it prints a barber pole pattern.
Pressing MODE stops the test.
Print mode - While holding the LINE FEED/GROUP key down, turn on power
to start the test. This test prints the same header as the rolling ASCII test, and
follows with print samples of available fonts.
Hex dump - Hex dump is a diagnostic test used to troubleshoot data problems.
Enter hex dump by holding the SEL key or, in later revisions, the SEL and
FORM FEED keys while powering on the printer. The printer will print any
incoming data in a hexadecimal format on the left while printing its ASCII
equivalent on the right. Any control characters will be printed on the right as a
period.
NOTE: The self-test may be used to determine the resident emulations of
the printer being repaired. There are two distinct types of ML-320 printer.
One contains a ROM which has only one emulation, "MICROLINE". This
model will print "Okidata 320 ML" at the beginning of the self-test. The
other model contains a ROM which has two selectable emulations," IBM
Proprinter" and "Epson FX". This model will print "Okidata 320 E/I" at the
beginning of the self-test.
Configuration
To enter configuration mode, be sure the printer is offline, and then press the
MODE key. If the control panel has been configured for limited operation, you
must hold the MODE key while powering on to enter the configuration mode.
Press PRINT to print a complete list of the current configuration. The menu is
divided into "Groups" which contain "Items". Each item has a number of
possible "Settings". Press the GROUP key until the desired group name is
printed. Then press the ITEM key until the desired item is printed. Press the
SET key until the desired setting for that item is printed. Continue configuration
by pressing the ITEM key to change other items within that group or press
GROUP to move to another group. When all setting changes are complete,
press MODE to save the changes.
OK-9
