ML 3390/3391
SEL
SEL
MENU
LF
Micro Feed
Down
SHIFT
FF/LOAD
EXIT
POWER
Micro Feed
Up
TEAR
PRINT QUALITY
GROUP
ALARM
P
ARK
ITEM
MENU
QUIET
TOF
LQ
SET
COURIER
ROMAN
UTILITY
PRINT
GOTHIC
PRESTIGE
CHARACTER PITCH
ORA
SWISS TOR
10
17
12
20
15
PROP
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Safety
•
The printhead can get quite hot when it has been printing for
a length of time. Do not touch the printhead until it has had a
chance to cool off.
Your printer has been carefully designed to give you years of safe,
reliable performance. As with all electrical equipment, there are a
few basic precautions you should take to avoid hurting yourself or
damaging the printer:
•
•
Do not use your printer near water, or spill liquid of any kind
into it.
•
•
•
•
Read the setup and operating instructions carefully. Be sure
to save them for future reference.
Be certain that your power source matches the rating listed
on the back of the printer. If you are not sure, check with your
dealer or with your local power company.
Read and follow all warning and instruction labels on the
printer itself.
•
Your printer has a earthed, 3-pin plug as a safety feature, and
it will only fit into a earthed outlet. If you can not plug it in,
chances are that you have an older, non-earthed outlet; contact
an electrician to have it replaced with a earthed outlet. Do not
use an adapter to defeat the earthing.
Unplug the printer before you clean it. Use only a damp cloth;
do not use liquid or aerosol cleaners.
Place your printer on a firm, solid surface. If you put in on
something unsteady, it might fall and be damaged; if you place
it on a soft surface, such as a rug, sofa, or bed, the vents may
be blocked, causing it to overheat.
•
•
The outlet into which you plug your printer must remain easily
accessible at all times.
•
To protect your printer from overheating, make sure no
openings on the printer are blocked. Do not put the printer on
or near a heat source, such as a radiator or heat register. If you
put the printer in any kind of enclosure, make sure it is well
ventilated.
To avoid damaging the power cable, do not put anything on it
or place it where it will be walked on. If the cable becomes
damaged or frayed, replace it immediately.
•
If you are using an extension cable or power strip with the
printer, make sure that the total of the amperes required by all
the equipment on the extension is less than the extension’s
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rating. Generally, the total ratings of all equipment plugged
into any one power line should not exceed 13 amperes. Do
not exceed this unless you know that the power line your
equipment is plugged into has a rating above 13 amperes.
•
•
Do not poke anything into the ventilation slots on the sides of
the printer; you could get a shock or cause a fire.
Aside from the routine maintenance described in the manuals,
don’t try to service the printer yourself; opening the cover
may expose you to shocks or other hazards. Do not make any
adjustments other than those outlined in the manual, you might
cause damage requiring extensive repair work.
•
If anything happens that indicates that your printer is not
working properly or has been damaged, unplug it immediately
and contact your Oki dealer for service. These are some of
the things to look for:
•
•
The power cable or plug is frayed or damaged.
Liquid has been spilled into the housing, or the printer
has been exposed to water.
•
•
The printer has been dropped or its cabinet has been
damaged.
The printer doesn’t function normally when you are
following the operating instructions.
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Contents
Print Mode: Control Panel Keys...................................... 12
Selecting the Print Quality and Font ............................... 13
Selecting the Character Pitch .......................................... 14
Menu Mode: Control Panel ............................................. 14
Entering and Exiting the Menu Mode ............................. 15
Resetting the Menu .......................................................... 15
Printing the Menu Settings .............................................. 15
Summary of Menu Settings ............................................. 16
Explanations of Menu Items............................................ 19
Paper Park Feature ........................................................... 22
Specifications................................................................... 23
Index ................................................................................ 27
Safety .................................................................................. i
Maintenance....................................................................... 1
Replacing the Ribbon Cartridge ........................................ 1
Clearing Paper Jams .......................................................... 2
Rear-Feed Jams ................................................................. 2
Correcting Repetitive Rear-Feed Jams .............................. 4
Single-Sheet Jams.............................................................. 6
Cleaning the Housing ........................................................ 7
Troubleshooting ................................................................. 8
Using Your Printer ........................................................... 11
Print Mode: Indicator Lights ........................................... 11
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3. Remove and discard the used ribbon cartridge.
Maintenance
Replacing the Ribbon Cartridge
Note: For the best results, use genuine Oki ribbons.
1. Make sure the printer is turned OFF.
2. Centre the printhead (➊).
Caution! The printhead may be HOT!
4. Unpack the new ribbon cartridge.
➊
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5. Install the new ribbon cartridge.
Clearing Paper Jams
Rear-Feed Jams
1. Turn the printer OFF and use the platen knob to back the
paper all the way out.
A
6. Turn the knob (➊) in the direction of the arrow to take up
any ribbon slack.
2. Open the access cover, and remove the pull-up roller
assembly.
➊
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3. Remove any torn pieces of paper.
6. Turn the printer on.
4. Replace the pull-up roller assembly, and close the access
cover.
7. Press FF/LOAD.
5. Reload paper.
FF/LOAD
Micro Feed
Up
ITEM
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Correcting Repetitive Rear-Feed Jams
If the paper keeps jamming, you probably have bits of paper
stuck in the paper path.
3. Fold some continuous-form paper over three times to
make a page four sheets thick, load it on the tractors and
close the covers.
1. Perform steps 1 through 3 under “Rear-Feed Jams.”
2. Grasp the paper separator (➊), lift it slightly, pull back
on it, then swing it forward.
➊
4. Swing the paper separator over, and use the platen knob
to draw the quadruple-thick page around the platen: this
brings out any jammed bits of paper.
TEAR
PRINT QUALITY
PARK
QUIET
HSD
SET
UTL
TOF
NLQ
PRINT
CHARACTER PITCH
SSD
10
17
12
20
15
PROP
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5. Remove the paper pieces, and use the platen knob to back 7. Replace the pull-up roller assembly, and close the access
the paper out.
cover.
FF/LOAD
Micro Feed
Up
TEAR
PRINT QUALITY
PARK
TEM
QUIET
TOF
HSD
NLQ
SET
UTL
MENU
PRINT
CHARACTER PITCH
SSD
10
17
12
20
15
PROP
8. Turn the printer on.
6. Swing the paper separator over, reload regular paper, and
lower the paper separator back into place.
9. Press FF/LOAD.
FF/LOAD
Micro Feed
Up
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Single-Sheet Jams
4. Remove any torn pieces from around the carriage.
1. Turn the printer off.
5. Reinstall the pull-up roller assembly, and close the access
cover.
2. Use the platen knob to back the jammed paper out.
SEL
SEL
MENU
LF
Micro Feed
Down
SHIFT
EXIT
POWER
FF/LOAD
Micro Feed
Up
TEAR
PRINT QUALITY
ALARM
GROUP
PARK
ITEM
MENU
QUIET
TOF
HSD
NLQ
SET
UTL
PRINT
CHARACTER PITCH
SSD
10
17
12
20
15
PROP
3. Open the access cover and remove the pull-up roller
assembly.
6. Turn the printer on, and reload paper.
SEL
SEL
MENU
LF
Micro Feed
Down
SHIFT
EXIT
POWER
FF/LOAD
Micro Feed
Up
TEAR
GROUP
PRINT QUALITY
ALARM
PARK
ITEM
MENU
QUIET
TOF
LQ
SET
COURIER
ROMAN
UTILITY
PRINT
GOTHIC
PRESTIGE
CHARACTER PITCH
ORA
S
W
I
S
S
T
O
R
10
17
12
20
15
PROP
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Cleaning the Housing
4. Reinstall the pull-up roller assembly, and close the access
cover.
You should clean the printer every six months (or after about
300 hours of operation).
Note: Never use solvents or strong detergents on the
cabinet: they could damage the housing.
1. Turn the printer off, and remove any paper from the path.
2. Open the access cover, remove the pull-up roller assembly.
3. Use a clean, dry cloth to dust around the carriage shaft
and platen. Remove any loose pieces of paper.
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Troubleshooting
Problem: Nothing happens when I turn on the printer.
Problem: I'm getting strange symbols, incorrect fonts,
etc., when I try to print a document.
Solution: Check the power cable connection the outlet and
to your printer. If you are using a power strip,
make sure it is turned on, and that the fuse has
not blown nor the circuit breaker tripped.
Solution: (1) Check to be sure that the printer driver you
have selected in your software matches the
printer emulation. (Press SHIFT and SEL
keys, then press GROUP key: this will print
a line showing the emulation you have
selected.)
Problem: The printer does not print when data is sent.
Solutions: (1) Is the SEL light on? If not, press the SEL
(2) If you have embedded any printer
commands in your software, check to be
sure that you entered them correctly.
key.
(2) Check that the interface cable is securely
connected to both the computer and the
printer.
Problem: I've installed a new ribbon and the printing is
smeared and streaked.
(3) If you have the optional serial interface
board installed, check to be sure that it is
firmly seated in the printer.
Solution: The ribbon shield is either loose or missing.
Remove the ribbon cartridge and check the clear
plastic ribbon shield: if it's loose, secure it in
place, if it is missing, find it and reinstall it.
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Problem: TheALARM light is on and the Character Pitch Problem: My word processor files don't print the way I
15 light is flashing. have the menu and front panel set.
Solution: This indicates a paper jam. Press the SEL key Solution: Before sending a file to the printer, many word
and correct the paper jam situation ( see “Clearing
Paper Jams” in this manual).
processors send either an “initialization string”
or an I-Prime signal to the printer.
The initialization string contains codes that
override the panel and menu settings. To change
your printer to ignore the reset code, enter the
Menu Mode, go down to the Set-Up group and
change the setting for Reset Inhibit to Yes (see
“Changing the Menu Settings” in this manual).
Problem: TheALARM light is on and the Character Pitch
10 light is flashing.
Solution: This indicates that the paper lever is set at the
wrong position for the paper you are trying to
use: move it to the proper setting.
The I-Prime signal will automatically override
any front panel settings you have made. To
eliminate this problem, enter the Menu Mode,
go down to the Parallel Interface group and
change the setting for I Prime to Invalid (see
“Changing the Menu Settings” in this manual).
Problem: The ALARM light is blinking.
Solution: Try turning the printer off and then back on again.
If the light still blinks, call for service.
Problem: The printer needs paper, but the ALARM light
is not on and I can't load the paper.
Solution: Press and release the SEL key, then hold the
SHIFT key and press the RESET (CHARACTER
PITCH) key: this resets the printer.
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Problem: The Print Quality and Character Pitch keys on
the front panel won't work.
Solution: The Operator Panel Function in the printer menu
can be used to disable these buttons. If the printer
is part of a customized system or if it is used by
a number of people, the system manager may
have used this option to make sure the printer is
always set properly.
Problem: Continuous-form paper is sticking to the paper
separator.
Solution: In cold dry weather, static charges can build up
and make the paper cling to the paper separator.
Try moving the paper guides together so that the
paper rests on the guides rather than on the
separator.
Problem: Ink smears on paper.
Solution: This may be caused by excessive printhead travel
from the centring position when printing narrow
columns. Set Centring Position to MODE 1. On
ML3391 also try MODE 2. (See Menu Mode).
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UsingYour Printer
Print Mode: Indicator Lights
➊
➍
➋
PRINT QUALITY
LQ
COURIER GOTHIC
ROMAN
SEL
SEL
UTILITY
ORATOR
PRESTIGE
FF/LOAD
TEAR
SET
PARK
QUIET
TOF
LF
SWISS
Micro Feed
Down
Micro Feed
Up
SHIFT
MENU
CHARACTER PITCH
10
12
20
15
PRINT
ITEM
EXIT
POWER
GROUP
17
PROP
ALARM
MENU
➎
➌
➏
➊ SEL .............. Glows = printer selected, ready to receive data
Flashes = printer in Print Suppress Mode
➎ ALARM ... Glows = error condition exists:
➤ out of paper if no other lights are blinking
Not lit = printer deselected (can't receive data)
➤ paper jam if 15 cpi light is also blinking
➤ paper lever is set to wrong position if 10 cpi
➋ QUIET ......... Glows = printer in Quiet state.
light is also blinking.
➌ POWER ....... Glows = printer turned on.
Blinks = error condition. Turn printer off, then
on; if the light still flashes, contact your service
dealer.
➍ PRINT QUALITY ..... Indicate print quality and font
selected.
➏ 10/12/15/17/20/PROP ..... Indicate character pitch selected.
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Print Mode: Control Panel Keys
➍
➎
➋
➌
➊
PRINT QUALITY
LQ
COURIER GOTHIC
ROMAN
SEL
SEL
UTILITY
ORATOR
PRESTIGE
FF/LOAD
TEAR
SET
PARK
QUIET
TOF
LF
SWISS
Micro Feed
Down
Micro Feed
Up
SHIFT
MENU
CHARACTER PITCH
10
12
20
15
PRINT
ITEM
EXIT
POWER
GROUP
17
PROP
ALARM
MENU
➏
➑
➒
➐
➊ SEL ......... Selects/deselects printer. When held on power up,
➎ PRINT QUALITY ........... Selects the print quality and font.
engages the Menu Mode.
➏ FF/LOAD ......................... Loads/ejects single sheet of paper;
moves continuous-form paper to
➋ SHIFT ..... Press and hold while pressing another switch to
engage the alternate function for that switch (e.g.
“Micro Feed Down” for the LF key).
print position.
➐ TEAR ................................ Moves continuous-form paper up
➌ LF............ Moves paper up one line: press and hold for
repetitive line feeds. When held on power up,
activates the Font Test.
for tear-off or back down for
printing.
➑ PARK ................................ Retracts continuous-form paper
➍ QUIET .... Turns Quiet Mode on and off. When held on
from the path.
power up, activates the Rolling ASCII Test.
➒ CHARACTER PITCH .... Selects the character pitch. Used
with the SHIFT key to reset the
printer.
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Selecting the Print Quality and Font
When Letter Quality is engaged, the lights indicate which
font is selected:
Important! Front panel settings for print quality and
character pitch can be overridden by software
commands. The lights will always reflect the
printer's state.
PRINT QUALITY
COURIER GOTHIC
ROMAN
LQ
UTILITY
ORATOR
PRESTIGE
Press PRINT QUALITY to select:
SWISS
LQ: Letter Quality
•
•
•
Highest quality, slowest speed
Seven fonts
Recommended for correspondence
•
•
•
•
•
•
•
Courier: LQ and Courier lights on
Gothic: LQ and Gothic lights on
Orator: LQ and Orator lights on
Prestige: LQ and Prestige lights on
Roman: LQ, Courier and Gothic lights on
Swiss: LQ, Orator and Prestige lights on
Swiss Bold: LQ light on
UTILITY:
•
•
•
Medium quality, medium speed
Gothic font only
Recommended for internal documents and high-volume
data.
Note: To select High Speed Draft mode, set the Print Quality
to UTILITY and the Character Pitch to 15.
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Selecting the Character Pitch
Menu Mode: Control Panel
➌
➋
➍
➊
PressCHARACTER PITCH to select the width of characters
in characters per inch:
SEL
FF/LOAD
TEAR
SET
PARK
QUIET
TOF
LF
SEL
10 cpi
Micro Feed
Down
Micro Feed
Up
SHIFT
MENU
•
Recommended for standard text.
PRINT
ITEM
EXIT
GROUP
POWER
ALARM
MENU
12 cpi
•
•
Yields more text per page.
Recommended for standard text.
➎
15 cpi
➊ GROUP key..Prints the next Group in the Menu. With
•
•
In HSD mode, yields fastest printing.
Recommended for large volumes of data.
the SHIFT key, prints the previous Group.
➋ ITEM key .....Prints the next Item in the Group. With the
SHIFT key, prints the previous Item in the
Group.
17.1 cpi, 20 cpi
•
•
Smallest print
Recommended for spreadsheets.
➌ SET key ........Prints the next Setting for an Item. With
the SHIFT key, prints the previous Setting
for an Item.
PROP
•
•
Proportional spacing
Recommended for documents where you want a more
polished appearance.
➍ PRINT key ...Prints a copy of all the Menu settings.With
the SHIFT key, prints the current settings
for the Group selected.
•
Not available for High Speed Draft.
➎ MENU light ..Glows when the printer is in the Menu
Mode.
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Entering and Exiting the Menu Mode
Changing the Menu Settings
To enter or exit the Menu Mode, hold SHIFT while pressing
SEL.
1. Press SHIFT + SEL to enter the Menu Mode.
2. Use the GROUP, ITEM and SET keys to make your
changes:
Resetting the Menu
➤ Press GROUP successively until the Group you wish
To reset the Menu to the standard settings:
1. Turn the printer off.
to change appears in the first column.
➤ PressITEM until the Item you wish to change appears
in the second column.
2. Press SEL + LF while turning the printer on.
➤ Press SET until the setting you want appears in the
third column.
Printing the Menu Settings
1. Make sure paper is loaded in the printer.
2. Enter the Menu Mode (SHIFT + SEL).
3. Press PRINT (PARK).
3. Press SHIFT + SEL to exit the Menu Mode and save
your settings.
Important! If you turn the printer off without first exiting
the Menu Mode, the changes you have made
will be lost.
Note: To print out a listing of the settings for all menu items,
regardless of the emulation selected or the accessories
installed, enter the Menu Mode, then press SHIFT +
PRINT QUALITY.
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Summary of Menu Settings
The table below shows the items which may appear in the menu. Settings which are engaged at the factory (defaults) are set in bold
italic. Some groups or entries will only appear when a specific emulation is engaged, as noted.
Group
Item
Setting
Printer Control Emulation Mode
EPSON LQ, IBM PPR, IBM AGM
Font
Print Mode
LQ Courier, LQ Roman, LQ Swiss, LQ Swiss Bold, LQ Orator, LQ Gothic,
LQ Prestige, Utility
Pitch
10 cpi, 12 cpi, 15 cpi, 17.1 cpi, 20 cpi
No, Yes
Proportional Spacing
Style
Size
Normal, Italics
Single, Double
Symbol Sets
Character Set
Language Set
Set I, Set II
ASCII, French, German, British, Danish I, Swedish I, Italian, Spanish I, Japanese,
Norwegian, Danish II, Spanish II, Latin American, French Canadian, Dutch, Swedish II,
Swedish III, Swedish IV, Turkish, Swiss I, Swiss II, Publisher
Zero Character
Code Page
Slashed, Unslashed
USA, Serbo Croatic II, Canada French, ECMA-94, Multilingual, Windows East Europe,
Portugal, Windows Greek, Norway, Latin 5 (Windows Turkey), Baltic 774, Windows
Cyrillic, East Europe Latin II-852, Cyrillic I-855, Hungarian CWI, Turkey 857,
Ukrainian, Cyrillic II-866, ISO Latin 6, Greek_869, Hebrew NC (862), Kamenicky
(MJK), Hebrew OC, Greek_437, Windows Hebrew, Greek_437 CYPRUS, Windows
Baltic, Turkey, Bulgarian, Polska Mazovia, Greek_928, ISO Latin 2, Serbo Croatic I
Slashed Letter O
No, Yes
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Group
Item
Settings
Rear Feed
Line Spacing
6 LPI, 8 LPI
Form Tear-Off
Off, 500 mS, 1 sec, 2 sec
Skip Over Perforation
Page Width (ML 3391 only)
Page Length
No, Yes
13.6", 8"
11", 11-2/3", 12", 14", 17", 3", 3.5", 4", 5.5", 6", 7", 8", 8.5"
Bottom Feed
Top Feed
Line Spacing
6 LPI, 8 LPI
Form Tear-Off
Off, 500 mS, 1 sec, 2 sec
Skip Over Perforation
Page Width (ML 3391 only)
Page Length
No, Yes
13.6", 8"
11", 11-2/3", 12", 14", 17", 3", 3.5", 4", 5.5", 6", 7", 8", 8.5"
Line Spacing
6 LPI, 8 LPI
Bottom Margin
Page Width (ML 3391 only)
Page Length
Valid, Invalid
13.6", 8"
11", 11-2/3", 12", 14", 16.57", 3", 3.5", 4", 5.5", 6", 7", 8", 8.5"
500 mS,1 sec, 2 sec
Wait Time
Page Length Control
by MENU Setting, by Actual Page Length
Set-Up
Graphics
Bidirectional, Unidirectional
23K, 1 Line, 8K
No, Yes
Receive Buffer Size
Paper Out Override
Print Registration
0.25 mm Right, 0.20 mm Right, 0.15 mm Right, 0.10 mm Right, 0.05 mm Right, 0,
0.05 mm Left, 0.10 mm Left, 0.15 mm Left, 0.20 mm Left, 0.25 mm Left
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Group
Item
Settings
Set-Up
Operator Panel Function
Reset Inhibit
Full Operation, Limited Operation
(continued)
No, Yes
Print Suppress Effective
Auto LF
Yes, No
No, Yes
Auto CR*
No, Yes
SI Select Pitch (10 cpi)*
SI Select Pitch (12 cpi)*
Time Out Print
17.1 cpi, 15 cpi
20 cpi, 12 cpi
Valid, Invalid
No, Yes
Auto Select
Graphics Speed
Centring Position
Low, High
DEFAULT, MODE1, MODE2**
Parallel I/F
I-Prime
Pin 18
Buffer Print, Invalid, Buffer Clear
+5V, Open
Auto Feed XT***
Invalid, Valid
*
Appears only when the IBM emulation is selected.
ML3391 only.
**
*** Applies only when the Epson emulation is selected.
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Explanations of Menu Items
Auto CR (IBM). If you want the printer to automatically add
a carriage return when a Line Feed is received at the end of a
line, change the setting to Yes.
Emulation Mode. Choose the printer emulation.
Form Tear-Off. Choose 500 mS, 1 sec, or 2 sec to turn the
Form Tear-Off feature on and to set the time interval for the
printer to wait before advancing the paper.
Auto LF. If your printout is consistently double spaced, select
No; if it overprints, select Yes.
Graphics. Change to bidirectional graphics for faster printing:
optimise the registration using the Print Registration menu
item.
Auto Feed XT (Epson). If your system uses pin 14 of the
parallel interface to control automatic line feed, change the
setting to Valid.
I-Prime. Determines what the printer will do when it receives
the I-Prime signal from the host: Buffer Print prints out the
buffer contents before resetting; Buffer Clear dumps the buffer
contents immediately. Invalid causes the printer to ignore the
I-Prime signal.
Auto Select. If you always use the sameTop of Form position,
change the setting to Yes.
Bottom Margin. Change to Invalid if you want the printer to
ignore the bottom margin setting. Caution! This can cause
loss of data and damage the printhead.
Language Set.Replaces certain standard symbols with special
characters used in foreign languages.
Centring Position. Choose DEFAULT, Mode 1 or Mode 2.
Line Spacing. Change to 8 lpi to get more lines on a page.
Character Set. Choose IBM Set I or IBM Set II.
Operator Panel Function. Change to Limited Operation to
deactivate the PRINT QUALITY and CHARACTER PITCH
buttons.Thisprevents these from being changed via the control
panel when several people are using the printer.
Code Page. Choose the Code Page character set you wish to
use.
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Page Length. Set this to match the length of the paper you Print Suppress Effective. If your system uses the DC1 and
are using.
DC3 codes for something other than the print suppress mode,
change the setting to No.
Page Length Control. Change the setting to“byActual Page
Length” if you wish to print on single-sheet pages.When “by Proportional Spacing. Change the setting to Yes to engage
Actual Page Length” is selected, the printer will print no closer proportional spacing of characters.
than 1" from the edge of the paper. When “by Menu Setting”
Receive Buffer Size. Sets the amount of memory for holding
is selected, the printer will print to the length you have chosen.
received data. Choosing 1 Line will tie up your computer
Page Width (ML 3391 only). Change to 8" to print on while printing, but the printer stops much sooner if you abort
letter-size paper.
the job.
Paper Out Override. Senses when less than 1" (25 mm) of Reset Inhibit. Select Yes to prevent your software from
paper remains, and stops printing. Change toYes to override resetting your printer's settings.
the sensor. Caution! This can cause loss of data and damage
SI Select Pitch, 10 cpi (IBM). Sets the pitch to be engaged
the printhead!
when the printer control panel is set for 10 cpi and the SI
Pin 18. Sets the signal on pin 18 to +5 volts or to open.
command is received.
Pitch. Choose the character width, in character per inch (cpi). SI Select Pitch, 12 cpi (IBM). Sets the pitch to be engaged
when the printer control panel is set for 12 cpi and the SI
command is received.
Print Mode. Choose the quality and font for printing.
Print Registration. Change the setting as required to obtain
Size. Change to Double for double width and height printing.
the best registration for bidirectional printing.
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Skip Over Perforation. Change toYes if you want the printer
to go to the next page when it comes within 1" (25 mm) of
the bottom of the page. Keep it set to No if your software has
its own page formatting controls.
Using the Printer's Features
Tear Feature
➊
Slashed Letter O. If set toYes, capital and lower case slashed
O (Ø and ø) will appear at locations 9Bh and 9Dh respectively
in USA code page. If set to No, the characters “¢” and “¥”
will appear at these locations.
SEL
FF/LOAD
TEAR
SET
PARK
QUIET
TOF
LF
SEL
Micro Feed
Down
Micro Feed
Up
SHIFT
MENU
PRINT
ITEM
EXIT
POWER
GROUP
ALARM
MENU
Style. Change to italics if you want the printed characters to
be slanted.
Use this feature to advance continuous-form paper up to the tear
Time Out Print. If your software spends a long time
processing between portions of data it feeds to the printer,
change the setting to Invalid to keep your printer from
inadvertently dumping the received data while it is waiting
for more.
position by simply pressing TEAR (➊).
Note: The Tear Feature can not be used when the optional
pull tractor is engaged.
Forms Tear-Off Feature
Wait Time. Sets the amount of time the printer will wait for
Important! Never engage Forms Tear-Off when printing
on labels!
more data before moving to the form tear-off position.
Zero Character. If you do not want the printer to use a slash
to distinguish the number zero from the capital letter O, change
the setting to Unslashed.
The Forms Tear-Off feature automatically moves
continuous-form paper up to the tear position after the interval
you select, then moves it back down again for printing when
the printer receives more data.
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This feature is normally turned off. To activate it:
Note: Some programs pause occasionally while sending
data. If the pause is too long, the paper will advance
to the tear-off position until more data is received.
This extra paper movement can cause uneven print
registration in graphics. If you have this problem,
use the menu to turn off this feature.
➊
➌
➋
➍
SEL
FF/LOAD
TEAR
SET
PARK
QUIET
TOF
LF
SEL
Micro Feed
Down
Micro Feed
Up
SHIFT
MENU
PRINT
ITEM
EXIT
GROUP
Paper Park Feature
POWER
ALARM
MENU
➊
1. Press SHIFT (➋) + SEL (➊).
SEL
FF/LOAD
TEAR
SET
PARK
QUIET
TOF
LF
SEL
2. Press GROUP (➌) until one of the following lines
Micro Feed
Down
Micro Feed
Up
SHIFT
MENU
appears, depending on which paper feed you are using:
PRINT
ITEM
EXIT
POWER
GROUP
ALARM
MENU
REAR FEED
Form Tear-Off
Form Tear-OFF
OFF
OFF
BOTTOM FEED
To retract rear-feed paper form the paper path, pressPARK (➊).
3. Press SET (➍) consecutively until the time interval you
wish to select appears in the third column.
4. Press SHIFT (➋) + SEL (➊) to exit Menu Mode and
save the setting.
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Specifications
Print Method Impact dot matrix
Characters per Line (CPL)
Printhead
24 pins, 0.20 mm diameter, thermal protection
Setting
10 cpi
12 cpi
15 cpi
17.1 cpi
20 cpi
ML 3390
ML 3391
136 cpl
163 cpl
204 cpl
233 cpl
272 cpl
Print Speed
80 cpl
96 cpl
Pitch, Characters Speed, Characters
120 cpl
137 cpl
160 cpl
Mode
per Inch
per Second
High Speed Draft
Utility
15 cpi
390 cps
10 cpi
12 cpi
17.1 cpi
20 cpi
260 cps
312 cps
223 cps
260 cps
Emulations
Interface
Graphics
Epson LQ, IBM Proprinter, IBM AGM
co-resident
Letter Quality
10 cpi
12 cpi
15 cpi
17.1 cpi
20 cpi
87 cps
104 cps
130 cps
149 cps
174 cps
Standard: Centronics parallel
Optional: RS-232C serial
Resolution
360 x 360 dpi maximum
Receive Buffer Size 23K
DLL RAM 15K maximum (Epson emulation only)
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Print Modes
Resident Fonts
Mode/Font
LQ Courier
LQ Roman
LQ Swiss
Size
Mode
Character Pitch
10 cpi, 12 cpi, Superscript/subscript
10 cpi, 12 cpi, Superscript/subscript
10 cpi, 12 cpi, Superscript/subscript
10, cpi, 12 cpi
Letter Quality
10, 12, 15, 17.1, or 20 cpi,
or Proportional
Utility
10, 12, 17.1 or 20 cpi,
or Proportional
LQ Prestige
LQ Orator
High Speed Draft
15 cpi
10, cpi, 12 cpi
LQ Letter Gothic 10 cpi, 12 cpi
Bar Codes
Code 39, UPC A, UPC E, EAN 8, EAN 13,
Interleaved 2 of 5, Code 128, Postnet
LQ Swiss Bold
Utility Gothic
HSD Gothic
10, cpi, 12 cpi
10, cpi, 12 cpi, Superscript/subscript
15 cpi
Scalable Fonts Courier, Roman and Swiss, sizes 8 to 64 points
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Reliability
Paper Specifications
Parameter
Reliability
Paper Type Feed
Weight
Width Range*
Mean Time Between Failures 10,000 hours at 25% duty
Cut sheets Top Only 58 - 90 g/m²
(14-24 lb.)
ML3390: 182.9 - 215.9mm
(7.2" - 8.5")
(MTBF)
cycle and 35% page density
ML3391: 182.9 - 363.2mm
(7.2 to 14.3")
Mean Time to Repair
(MTTR)
15 minutes
Single-part Rear,
continuous Bottom (12-24 lb.)
forms
45 - 90 g/m²
ML3390: 76.2 - 254mm
(3-10")
ML3391: 76.2 - 406.4mm
(3-16")
Printhead Life
200 million characters
average in 10 cpi draft mode
at 25% duty and 35% page
density
Carbonless Rear,
continuous Bottom (9-11 lb.)
forms
34 - 41 g/m²
ML3390: 76.2 - 254mm
(3-10")
ML3391: 76.2 - 406.4mm
(3-16")
Ribbon Life (on average,
10 cpi utility)
2 million characters
Interleaf
continuous Bottom (10-12 lb.)
forms
Rear,
38 - 45 g/m²
ML3390: 76.2 - 254mm
(3-10")
Paper Width
Minimum: 3"
Maximum, ML 3390: 10"
Maximum, ML 3391: 16"
Carbon 34g/m² ML3391: 76.2 - 406.4mm
(9 lb.)
(3-16")
Paper Weight
45 to 90 g/m² (12 to 24 lb.)
Labels
Bottom
Only
ML3390: 76.2 - 254mm
(3-10")
ML3391: 76.2 - 406.4mm
(3-16")
Paper Thickness
Rear Feed: 0.36mm (0.014") max.
Bottom Feed: 0.44mm (0.017") max.
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Paper Specifications (continued)
Environmental Requirements
Parameter
Range
Paper Type
Feed
Weight
Width Range*
Operating Temperature
Storage Temperature
Operating Humidity
5 to 40°C
-10 to +50°C)
Envelopes,
single feed
Top Only 90 g/m² max. 165.1 - 241.3mm
(24 lb.) (6.5" to 9.5")
Envelopes,
continuous feed,
non-overlap
Bottom 90 g/m² max. 165.1 - 241.3mm
Only (24 lb.) (6.5" to 9.5")
20 to 80% RH (max. wet
bulb temp. 30°C)
Card stock
Bottom 178 g/m² max. N.A.
Storage Humidity
5 to 95% RH (max. wet
bulb temp. 40°C)
Only
(48 lb.)
Transparencies
Top Only
—
215.9 - 279.4mm
(8.5" x 11")
Electrical Requirements
230/240 volts ac (+10%, -14%),
50/60 Hz (±2%)
Dimensions (W x D x H)
ML 3390: 15.7 x 13.6 x 4.6 inches
(398 x 345 x 116 mm)
This product complies with the requirements of the Council
Directive 89/336/EEC on the approximation of the laws of the
member states relating to electromagnetic compatibility.
ML 3391: 16.9 x 13.6 x 4.6 inches
(430 x 345 x 116 mm)
Specifications subject to change without notice.
Weight
ML 3390: TBD
ML 3391: TBD
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Index
A
Continuous-form paper
F
K
jams, clearing .............. 2-5
specifications ................ 24
Control panel ................ 11-14
Cut sheet specifications .... 25
Alarm light
Factory settings, menu . 16-18 Keys
troubleshooting ............... 9
Auto
CR menu setting ........... 19
Fonts ............................ 13, 24
Form tear-off feature ......... 21
menu setting ................. 19
Front panel ................... 11-14
menu mode ................... 14
print mode..................... 12
feed XT menu setting ... 19
LF menu setting............ 19
select menu setting ....... 19
L
D
Label specifications .......... 25
Language set menu
Defaults, menu ........... 116-18
resetting ........................ 15
Decollator menu
setting ............................... 19
Dimensions ........................ 25
DLL RAM ......................... 23
G
Graphics menu setting ...... 19
Graphics resolution ........... 23
setting ............................... 19
Letter quality fonts...... 13, 24
Lights, control
B
Bar codes ........................... 24
Bottom margin menu
setting ............................... 19
H
panel ..................... 11, 13, 14
Line spacing menu
setting ............................... 19
High speed draft .......... 13, 24
Housing, cleaning ............... 7
Humidity requirements ..... 26
E
C
Electrical requirements ..... 26
Emulation mode menu
setting ............................... 19
Emulations......................... 23
Envelope specifications..... 26
Environmental
M
Card stock specifications .. 26
Centring position menu setting
19
Character pitch .................. 14
Characters per line ............ 23
Character set menu
I
Maintenance ..................... 1-7
Menu
Indicator lights ...... 11, 13, 14
Interface............................. 23
I-Prime menu setting ......... 19
items ........................ 19-21
mode ........................ 14-14
settings ..................... 16-18
requirements..................... 26
setting ............................... 19
Code page menu setting .... 19
J
Jams, paper ....................... 2-6
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O
Print suppress effective
Skip over perforation
W
menu setting ..................... 20
Printhead specifications .... 23
Problem solving ............. 8-10 Specifications ............... 23-26
menu setting ..................... 21
Slashed letter ‘O’ .............. 21
Operator panel function
menu setting ..................... 20
Wait time menu setting ..... 21
Weight ............................... 26
Proportional spacing
menu setting ..................... 20
Storage
humidity........................ 26
temperature ................... 26
Style menu setting ............. 21
P
Z
Page length menu setting .. 20
Page length control menu
setting ............................... 20
Page width menu setting ... 20
Panel, front ................... 11-14
Paper
Zero character menu
setting ............................... 21
R
Rear feed paper
T
jams.............................. 2-5
Receive buffer size ...... 20, 23 Tear feature........................ 21
Reliability .......................... 25
Repetitive paper jams....... 4-5
Reset inhibit menu
setting ............................... 20 Time out print menu
Resident fonts .................... 24
Ribbon replacement ......... 1-2
Tear-off feature .................. 21
Temperature
requirements ..................... 26
jams, clearing .............. 2-6
specifications ................ 23
Paper out override menu
setting ............................... 20
Paper park feature ............. 22
Pin 18 menu setting........... 20
Pitch menu setting ............. 20
Print mode .................... 11-14
menu setting ................. 20
Print modes........................ 24
Print quality ....................... 13
Print registration menu
setting ............................... 21
Transparency
specifications.................... 26
Troubleshooting ............. 8-10
S
Scalable fonts .................... 24
SI select pitch menu
settings ............................. 20 Utility mode ................ 13, 24
Single sheet paper jams,
U
setting ............................... 20
Print speed ......................... 23
clearing............................... 6
Size menu setting .............. 20
V
Voltage requirements......... 26
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Oki Systems Company
Oki Systems (UK) Limited
550 Dundee Road
Slough Trading Estate
Slough
Berks. SL1 4LE
Tel: 01753-819819
Fax: 01753-819899
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