Page 1
ML 3390/3391
SEL
SEL
MENU
LF
SHIFT
FF/LOAD
Micro Feed
Down
POWER ALARM
Micro Feed
PRINT QUALITY
Up
GROUPEXIT
ITEM SET
QUIETPARKTEAR
LQ
COURIER
TOF
MENU
UTILITY
PRINT
PRESTIGE
CHARACTER PITCH
10 12 15
17
20 PROP
English
GOTHIC
ROMAN
ORATOR
SWISS
Help Guide
Page 2
Every eff ort has been made to ensure that the information in
this document is complete, accurate, and up-to-date. Oki
assumes no responsibility for the results of errors beyond its
control. Oki also cannot guarantee that changes in software
and equipment made by other manufacturers and referred to
in this guide will not affect the applicability of the information
in it. Mention of software products manufactured by other
companies does not necessarily constitute endorsement by
Oki.
© 1995 by Oki. All rights reserved.
First edition January 1996.
Written and produced by the Documentation Department.
Oki and Microline are registered trademarks of Oki Electric
Industry Company, Ltd.
Energy Star is a trademark of the United States En vironmental
Protection Agency .
Epson is a registered trademark of Epson America, Inc.
IBM is a registered trademark of International Business
Machines Corp.
Energy Star
As an Energy Star Partner, Oki
has determined that this product
meets the Energy Star guidelines
for energy efficiency.
Page 3
Safety
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:
• Read the setup and operating instructions carefully. Be sure
to save them for future reference.
• Read and follow all warning and instruction labels on the
printer itself.
• 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.
• 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.
• 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.
• Do not use your printer near water, or spill liquid of any kind
into it.
• 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.
• 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.
• The outlet into which you plug your printer must remain easily
accessible at all times.
• 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
English
iHelp Guide
Page 4
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.
English
• The printer doesn’t function normally when you are
following the operating instructions.
ii ML3320/21
Page 5
Contents
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 Y our Printer ........................................................... 11
Print Mode: Indicator Lights ........................................... 11
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
English
iiiHelp Guide
Page 6
English
iv ML3320/21
Page 7
Maintenance
3. Remove and discard the used ribbon cartridge.
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!
➊
English
4. Unpack the new ribbon cartridge.
Help Guide 1
Page 8
5. Install the new ribbon cartridge.
6. Turn the knob (➊) in the direction of the arro w to take up
any ribbon slack.
➊
Clearing Paper Jams
Rear-Feed Jams
1. Turn the printer OFF and use the platen knob to back the
paper all the way out.
2. Open the access cover, and remove the pull-up roller
assembly.
2 ML3390/91
Page 9
3. Remove any torn pieces of paper.
6. Turn the printer on.
4. Replace the pull-up roller assembly , and close the access
cover .
5. Reload paper.
7. Press FF/LOAD.
FF/LOAD
Micro Feed
Up
ITEM
English
Help Guide 3
Page 10
Correcting Repetitive Rear-Feed Jams
QUIETPARKTEAR
SET
PRINT
TOF
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17
20 PROP
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
SEL
SEL
MENU
LF
SHIFT
FF/LOAD
Micro Feed
Down
POWER ALARM
Micro Feed
PRINT QUALITY
Up
GROUPEXIT
ITEM SET
QUIETPARKTEAR
HSD
UTL
TOF
MENU
NLQ
PRINT
SSD
CHARACTER PITCH
10 12 15
17
20 PROP
4 ML3390/91
brings out any jammed bits of paper.
Page 11
5. Remove the paper pieces, and use the platen knob to back
the paper out.
FF/LOAD
Micro Feed
PRINT QUALITY
Up
QUIETPARKTEAR
TEM SET
HSD
UTL
TOF
MENU
NLQ
PRINT
SSD
CHARACTER PITCH
10 12 15
17
20 PROP
6. Swing the paper separator over , reload re gular paper , and
lower the paper separator back into place.
7. Replace the pull-up roller assembly , and close the access
cover .
8. Turn the printer on.
9. Press FF/LOAD.
FF/LOAD
Micro Feed
Up
English
Help Guide 5
Page 12
Single-Sheet Jams
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM
MENU
GROUPEXIT
ITEM SET
PRINT
MENU
SHIFT
TOF
Micro Feed
Up
Micro Feed
Down
CHARACTER PITCH
10 12 15
17
20 PROP
PRINT QUALITY
LQ
UTILITY
COURIER
PRESTIGE
GOTHIC
ROMAN
ORATOR
SWISS
1. Turn the printer off.
2. Use the platen knob to back the jammed paper out.
4. Remove any torn pieces from around the carriage.
5. Reinstall the pull-up roller assembly , and close the access
cover .
SEL
SEL
MENU
LF
SHIFT
FF/LOAD
Micro Feed
Down
POWER ALARM
Micro Feed
PRINT QUALITY
Up
GROUPEXIT
ITEM SET
QUIETPARKTEAR
HSD
UTL
TOF
MENU
NLQ
PRINT
SSD
CHARACTER PITCH
10 12 15
17
20 PROP
3. Open the access cover and remove the pull-up roller
assembly.
6. Turn the printer on, and reload paper.
6 ML3390/91
Page 13
Cleaning the Housing
You should c lean the printer ever y 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 of f, and remove an y paper from the path.
2. Open the access cover , remov e 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.
4. Reinstall the pull-up roller assembly , and close the access
cover .
English
Help Guide 7
Page 14
Troubleshooting
Problem: Nothing happens when I turn on the pr inter.
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.
Problem: The printer does not print when data is sent.
Solutions: (1) Is the SEL light on? If not, press the SEL
key.
(2) Check tha t the interface cable is securely
connected to both the computer and the
printer.
(3) If you have the optional serial interface
board installed, check to be sure that it is
firmly seated in the printer.
Problem: I'm getting strange symbols, incorrect fonts,
etc., when I try to print a document.
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 GR OUP key: this will print
a line showing the emulation you have
selected.)
(2) If you have embedded any printer
commands in your software, check to be
sure that you entered them correctly.
Problem: I've installed a new ribbon and the printing is
smeared and streaked.
Solution: The ribbon shield is either loose or missing.
Remove the r ibbon 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.
8 ML3390/91
Page 15
Problem: The ALARM light is on and the Character Pitch
15 light is flashing.
Problem: My word processor files don't print the way I
have the menu and front panel set.
Solution: This indicates a paper jam. Press the SEL key
and correct the paper jam situation ( see “Clearing
Paper Jams” in this manual).
Problem: The ALARM 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.
Problem: The ALARM light is blinking.
Solution: Try turning the pr inter 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 (CHARA CTER
PITCH) key: this resets the printer.
Solution: 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
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).
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).
English
Help Guide 9
Page 16
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 excessiv e printhead trav el
from the centring position when printing narrow
columns. Set Centring Position to MODE 1. On
ML3391 also try MODE 2. (See Menu Mode).
10 ML3390/91
Page 17
Using Your Printer
Print Mode: Indicator Lights
➊
SEL
FF/LOAD
SEL
MENU
POWER ALARM
➌
SHIFT TOF
➎
➊ SEL .............. Glows = printer selected, ready to receive data
Flashes = printer in Print Suppress Mode
Not lit = printer deselected (can't receive data)
➋ QUIET......... Glows = printer in Quiet state.
➌ POWER.......Glows = printer turned on.
➍ PRINT QUALITY ..... Indicate print quality and font
selected.
LF
Micro Feed
Down
GROUPEXIT
Micro Feed
Up
ITEM SET
MENU
➍
➋
PRINT
PRINT QUALITY
QUIETPARKTEAR
UTILITY
CHARACTER PITCH
COURIER
LQ
PRESTIGE
10 12 15
17
GOTHIC
ROMAN
ORATOR
SWISS
20 PROP
➏
➎ ALARM ... Glows = error condition exists:
➤ out of paper if no other lights are blinking
➤ paper jam if 15 cpi light is also blinking
➤ paper lever is set to wrong position if 10 cpi
light is also blinking.
Blinks = error condition. Turn printer off, then
on; if the light still flashes, contact your service
dealer.
➏ 10/12/15/17/20/PROP ..... Indicate character pitch selected.
English
Help Guide 11
Page 18
Print Mode: Control Panel Keys
➋
➊
➌
➍
➎
SEL
FF/LOAD
SEL
MENU
POWER ALARM
SHIFT TOF
LF
Micro Feed
GROUPEXIT
Down
Micro Feed
Up
ITEM SET
➏
MENU
➐
➊ SEL ......... Selects/deselects printer. When held on power up,
engages the Menu Mode.
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).
➌ LF............ Moves paper up one line: press and hold for
repetitive line feeds. When held on power up,
activates the Font Test.
➍ QUIET .... Tu rns Quiet Mode on and off. When held on
power up, activates the Rolling ASCII Test.
PRINT
PRINT QUALITY
QUIETPARKTEAR
UTILITY
CHARACTER PITCH
COURIER
LQ
PRESTIGE
10 12 15
17
➑➒
➎ PRINT QUALITY........... Selects the print quality and font.
➏ FF/LOAD ......................... Loads/ejects single sheet of paper;
➐ TEAR ................................ Moves continuous-form paper up
➑ PARK ................................ Retracts continuous-form paper
➒ CHARACTER PITCH .... Selects the character pitch. Used
GOTHIC
ROMAN
ORATOR
SWISS
20 PROP
moves continuous-form paper to
print position.
for tear-off or back down for
printing.
from the path.
with the SHIFT key to reset the
printer.
12 ML3390/91
Page 19
Selecting the Print Quality and Font
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.
Press PRINT QUALITY to select:
LQ: Letter Quality
• Highest quality, slowest speed
• Seven fonts
• Recommended for correspondence
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 Pr int Quality
to UTILITY and the Character Pitch to 15.
When Letter Quality is engaged, the lights indicate which
font is selected:
PRINT QUALITY
LQ
UTILITY
COURIER
PRESTIGE
GOTHIC
ROMAN
ORATOR
SWISS
• 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
English
Help Guide 13
Page 20
Selecting the Character Pitch
Press CHARA CTER PITCH to select the width of cha racters
in characters per inch:
10 cpi
• Recommended for standard text.
12 cpi
• Yields more text per page.
• Recommended for standard text.
Menu Mode: Control Panel
➊
SEL
SEL
MENU
POWER ALARM
SHIFT TOF
LF
Micro Feed
Down
GROUPEXIT
➋
FF/LOAD
Micro Feed
Up
ITEM SET
MENU
➌
➍
QUIETPARKTEAR
PRINT
➎
15 cpi
• In HSD mode, yields fastest printing.
• Recommended for large volumes of data.
17.1 cpi, 20 cpi
• Smallest print
• Recommended for spreadsheets.
➊ GROUP key.. Prints the next Group in the Menu. With
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.
➌ SET key ........ Prints the next Setting for an Item. With
the SHIFT key, prints the previous Setting
PROP
• Proportional spacing
• Recommended for documents where you want a more
polished appearance.
• Not available for High Speed Draft.
➍ PRINT key ...Prints a copy of all the Menu settings. Wit h
➎ MENU light ..Glows when the printer is in the Menu
for an Item.
the SHIFT key, prints the current settings
for the Group selected.
Mode.
14 ML3390/91
Page 21
Entering and Exiting the Menu Mode
Changing the Menu Settings
T o enter or e xit the Menu Mode, hold SHIFT while pressing
SEL.
Resetting the Menu
To reset the Menu to the standar d settings:
1. Turn the printer off.
2. Press SEL + LF while turning the printer on.
Printing the Menu Settings
1. Make sure paper is loaded in the printer.
2. Enter the Menu Mode (SHIFT + SEL).
3. Press PRINT (PARK).
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.
1. Press SHIFT + SEL to enter the Menu Mode.
2. Use the GROUP, ITEM and SET keys to make your
changes:
➤ Press GROUP successi vely until the Group you wish
to change appears in the first column.
➤ Press ITEM until the Item you wish to change appears
in the second column.
➤ Press SET until the setting you want appears in the
third column.
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.
English
Help Guide 15
Page 22
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,
Pitch 10 cpi, 12 cpi, 15 cpi, 17.1 cpi, 20 cpi
Proportional Spacing No, Y es
Style Normal, Italics
Size Single, Double
Symbol Sets Character Set Set I, Set II
Language Set ASCII, French, German, British, Danish I, Swedish I, Italian, Spanish I, Japanese,
Zero Character Slashed, Unslashed
Code Page USA, Serbo Croatic II, Canada French, ECMA-94, Multilingual, Windows East Europe,
Slashed Letter O No, Yes
LQ Prestige, Utility
Norwegian, Danish II, Spanish II, Latin American, French Canadian, Dutch, Swedish II,
Swedish III, Swedish IV, Turkish, Swiss I, Swiss II, Publisher
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, Tur key, Bulgarian, Polska Mazovia, Greek_928, ISO Latin 2, Serbo Croatic I
16 ML3390/91
Page 23
Group Item Settings
Rear Feed Line Spacing 6 LPI, 8 LPI
Form Tear-Off Off, 500 mS, 1 sec, 2 sec
Skip Over Perforation No, Y es
Page Width (ML 3391 onl y) 13.6", 8"
Page Length 11", 11-2/3", 12", 14", 17", 3", 3.5", 4", 5.5", 6", 7", 8", 8.5"
Bottom Feed Line Spacing 6 LPI, 8 LPI
Form Tear-Off Off, 500 mS, 1 sec, 2 sec
Skip Over Perforation No, Y es
Page Width (ML 3391 onl y) 13.6", 8"
Page Length 11", 11-2/3", 12", 14", 17", 3", 3.5", 4", 5.5", 6", 7", 8", 8.5"
Top Feed Line Spacing 6 LPI, 8 LPI
Bottom Margin Valid, Invalid
Page Width (ML 3391 onl y) 13.6", 8"
Page Length 11", 11-2/3", 12", 14", 16.57", 3", 3.5", 4", 5.5", 6", 7", 8", 8.5"
Wait Time 500 mS, 1 sec, 2 sec
Page Length Control by MENU Setting, by Actual Page Length
Set-Up Graphics Bidirectional, Unidirectional
Receive Buffer Size 23K, 1 Line, 8K
Paper Out Override No, Y es
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
English
Help Guide 17
Page 24
Group Item Settings
Set-Up Operator Panel Function Full Operation, Limited Operation
(continued) Reset Inhibit No, Y es
Print Suppress Effective Yes, No
Auto LF No, Y es
Auto CR* No, Y es
SI Select Pitch (10 cpi)* 17.1 cpi, 15 cpi
SI Select Pitch (12 cpi)* 20 cpi, 12 cpi
Time Out Print Valid, Invalid
Auto Select No, Y es
Graphics Speed Low, High
Centring Position DEFAULT, MODE1, MODE2**
Parallel I/F I-Prime Buffer Print, Invalid , Buffer Clear
Pin 18 +5V, Open
Auto Feed XT*** Invalid, Valid
*
Appears only when the IBM emulation is selected.
** ML3391 onl y.
*** Applies only when the Epson emulation is selected.
18 ML3390/91
Page 25
Explanations of Menu Items
A uto 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.
A uto LF. If your printout is consistently double spaced, select
No; if it overprints, select Yes.
Auto Feed XT (Epson). If your system uses pin 14 of the
parallel interface to control automatic line feed, change the
setting to Valid.
A uto Select. If you al ways use the same Top of Form position,
change the setting to Yes.
Bottom Margin. Change to Inv alid if you want the printer to
ignore the bottom margin setting. Caution! This can cause
loss of data and damage the printhead.
Centring Position. Choose DEFAULT, Mode 1 or Mode 2.
Character Set. Choose IBM Set I or IBM Set II.
Code Page. Choose the Code Page character set you wish to
use.
Emulation Mode. Choose the printer emulation.
English
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.
Graphics. Change to bidirectional graphics for f aster printing:
optimise the registration using the Print Registration menu
item.
I-Prime. Determines what the printer will do when it recei ves
the I-Prime signal from the host: Buffer Print prints out the
buf fer contents before resetting; Buffer Clear dumps the b uffer
contents immediately . In v alid causes the printer to ignore the
I-Prime signal.
Language Set. Replaces certain standard symbols with special
characters used in foreign languages.
Line Spacing. Change to 8 lpi to get more lines on a page.
Operator Panel Function. Change to Limited Operation to
deactiv ate the PRINT QUALITY and CHARA CTER PITCH
buttons. This prevents these fr om being changed via the control
panel when several people are using the printer.
Help Guide 19
Page 26
Page Length. Set this to match the length of the paper you
are using.
Page Length Control. Change the setting to “by Actual Page
Length” if you wish to print on single-sheet pag es. When “ by
Actual Page Length” is selected, the printer will print no closer
than 1" from the edge of the paper . When “by Menu Setting”
is selected, the printer will print to the length you hav e chosen.
Page Width (ML 3391 only). Change to 8" to print on
letter-size paper.
Print Suppress Effective. If your system uses the DC1 and
DC3 codes for something other than the print suppress mode,
change the setting to No.
Proportional Spacing. Change the setting to Yes to engage
proportional spacing of characters.
Receive Buffer Size. Sets the amount of memory for holding
received data. Choosing 1 Line will tie up your computer
while printing, but the printer stops much sooner if you abort
the job.
Paper Out Override. Senses when less than 1" (25 mm) of
paper remains, and stops printing. Change to Yes to override
the sensor . Caution! T his can cause loss of data and damage
the printhead!
Pin 18. Sets the signal on pin 18 to +5 volts or to open.
Pitch. Choose the character width, in character per inch (cpi).
Print Mode. Choose the quality and font for printing.
Print Registration. Change the setting as required to obtain
the best registration for bidirectional printing.
20 ML3390/91
Reset Inhibit. Select Yes to prevent your software from
resetting your printer's settings.
SI Select Pitch, 10 cpi (IBM). Sets the pitch to be engaged
when the printer control panel is set for 10 cpi and the SI
command is received.
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.
Size. Change to Double for double width and height printing.
Page 27
Skip Over Perf oration. Change to Y es if you w ant the printer
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM
MENU
GROUPEXIT
ITEM SET
PRINT
MENU
SHIFT TOF
Micro Feed
Up
Micro Feed
Down
Using the Printer's Features
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
Tear Feature
its own page formatting controls.
Slashed Letter O. If set to Y es, capital and lo wer 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.
Style. Change to italics if you want the printed characters to
be slanted.
Time Out Print. If your software spends a long time
Use this feature to advance continuous-form paper up to the tear
position by simply pressing TEAR (➊).
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
Note:The Tear Feature can not be used when the optional
pull tractor is engaged.
for more.
Wait Time. Sets the amount of time the printer will wait for
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.
Help Guide 21
Forms Tear-Off Feature
Important! Never engage Forms Tear-Off when printing
on labels!
The Forms Tear-Off feature automatically moves
continuous-form paper up to the tear position after the interv al
you select, then moves it back do wn again for printing when
the printer receives more data.
➊
English
Page 28
This feature is normally turned off. To activate it: Note: Some programs pause occasionally while sending
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM
MENU
GROUPEXIT
ITEM SET
PRINT
MENU
SHIFT TOF
Micro Feed
Up
Micro Feed
Down
data. If the pause is too long, the paper will advance
➋
➌➊
➍
to the tear-off position until more data is received.
This extra paper movement can cause uneven print
SEL
SEL
SHIFT TOF
MENU
POWER ALARM
LF
Micro Feed
Down
GROUPEXIT
FF/LOAD
Micro Feed
Up
ITEM SET
MENU
QUIETPARKTEAR
PRINT
registration in graphics. If you have this problem,
use the menu to turn off this feature.
Paper Park Feature
➊
1. Press SHIFT (➋) + SEL (➊).
2. Press GROUP (➌) until one of the following lines
appears, depending on which paper feed you are using:
REAR FEED Form Tear-Off OFF
BOTTOM FEED Form Tear-OFF OF F
T o retract rear-feed paper form the paper path, press PARK (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.
22 ML3390/91
Page 29
Specifications
Print Method Impact dot matrix
Printhead 24 pins, 0.20 mm diameter, thermal protection
Print Speed
Pitch, Characters Speed, Characters
Mode per Inch per Second
High Speed Draft 15 cpi 390 cps
Utility 10 cpi 260 cps
12 cpi 312 cps
17.1 cpi 223 cps
20 cpi 260 cps
Letter Quality 10 cpi 87 cps
12 cpi 104 cps
15 cpi 130 cps
17.1 cpi 149 cps
20 cpi 174 cps
Characters per Line (CPL)
Setting ML 3390 ML 3391
10 cpi 80 cpl 136 cpl
12 cpi 96 cpl 163 cpl
15 cpi 120 cpl 204 cpl
17.1 cpi 137 cpl 233 cpl
20 cpi 160 cpl 272 cpl
Emulations Epson LQ, IBM Proprinter, IBM AGM
co-resident
Interface Standard: Centronics parallel
Optional: RS-232C serial
Graphics
Resolution 360 x 360 dpi maximum
Receive Buffer Size 23K
DLL RAM 15K maximum (Epson emulation only)
English
Help Guide 23
Page 30
Print Modes
Resident Fonts
Mode Character Pitch
Letter Quality 10, 12, 15, 17.1, or 20 cpi,
or Proportional
Utility 10, 12, 17.1 or 20 cpi,
or Proportional
High Speed Draft 15 cpi
Bar Codes Code 39, UPC A, UPC E, EAN 8, EAN 13,
Interleaved 2 of 5, Code 128, Postnet
Scalable Fonts Courier, Roman and Swiss, sizes 8 to 64 points
Mode/Font Size
LQ Courier 10 cpi, 12 cpi, Superscript/subscript
LQ Roman 10 cpi, 12 cpi, Superscript/subscript
LQ Swiss 10 cpi, 12 cpi, Superscript/subscript
LQ Prestige 10, cpi, 12 cpi
LQ Orator 10, cpi, 12 cpi
LQ Letter Gothic 10 cpi, 12 cpi
LQ Swiss Bold 10, cpi, 12 cpi
Utility Gothic 10, cpi, 12 cpi, Superscript/subscript
HSD Gothic 15 cpi
24 ML3390/91
Page 31
Reliability
Paper Specifications
Parameter Reliability
Mean Time Between Failures 10,000 hours at 25% duty
(MTBF) cycle and 35% page density
Mean Time to Repair 15 minutes
(MTTR)
Printhead Life 200 million characters
average in 10 cpi draft mode
at 25% duty and 35% page
density
Ribbon Life (on average, 2 million characters
10 cpi utility)
Paper Width Minimum: 3"
Maximum, ML 3390: 10"
Maximum, ML 3391: 16"
Paper Weight 45 to 90 g/m² (12 to 24 lb.)
Paper Thic kness Rear Feed: 0.36mm (0.014") max.
Bottom Feed: 0.44mm (0.017") max.
Paper Type Fee d Weight Width Range*
Cut sheets Top Only 58 - 90 g/m² ML3390: 182.9 - 215.9mm
(14-24 lb.) (7.2" - 8.5")
ML3391: 182.9 - 363.2mm
(7.2 to 14.3")
Single-part Rear, 45 - 90 g/m² ML3390: 76.2 - 254mm
continuous Bottom (12-24 lb.) (3-10")
forms ML3391: 76.2 - 406.4mm
(3-16")
Carbonless Rear, 34 - 41 g/m² ML3390: 76.2 - 254mm
continuous Bottom (9-11 lb.) (3-10")
forms ML3391: 76.2 - 406.4mm
(3-16")
Interleaf Rear, 38 - 45 g/m² ML3390: 76.2 - 254mm
continuous Bottom (10-12 lb.) (3-10")
forms Carbon 34g/m² ML3391: 76.2 - 406.4mm
(9 lb.) (3-16")
Labels Bottom ML3390: 76.2 - 254mm
Only (3-10")
ML3391: 76.2 - 406.4mm
(3-16")
English
Help Guide 25
Page 32
Paper Specifications (continued)
Environmental Requirements
Paper Type Fe ed Weight Width Range*
Envelopes, Top Only 90 g/m² max. 165.1 - 241.3mm
single feed (24 lb.) (6.5" to 9.5")
Envelopes, Bottom 90 g/m² max. 165.1 - 241.3mm
continuous feed, Only (24 lb.) (6.5" to 9.5")
non-overlap
Card stock Bottom 178 g/m² max. N.A.
Only (48 lb.)
Transparencies Top Only — 215.9 - 279.4mm
(8.5" x 11")
Dimensions (W x D x H)
ML 3390: 15.7 x 13.6 x 4.6 inches
(398 x 345 x 116 mm)
ML 3391: 16.9 x 13.6 x 4.6 inches
(430 x 345 x 116 mm)
Weight ML 3390: TBD
ML 3391: TBD
Parameter Range
Operating Temperat ure 5 to 40°C
Storage Temper ature -10 to +50°C)
Operating Humidity 20 to 80% RH (max. wet
bulb temp. 30°C)
Storage Humidity 5 to 95% RH (max. wet
bulb temp. 40°C)
Electrical Requirements 230/240 volts ac (+10%, -14%),
50/60 Hz (±2%)
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.
Specifications subject to change without notice.
26 ML3390/91
Page 33
Index
A
Alarm light
troubleshooting............... 9
Auto
CR menu setting ........... 19
feed XT menu setting ... 19
LF menu setting ............ 1 9
select menu setting ....... 19
B
Bar codes ........................... 24
Bottom margin menu
setting ............................... 19
C
Card stock specifications .. 26
Centring position menu setting
19
Character pitch .................. 14
Characters per line ............ 23
Character set menu
setting ............................... 19
Code page menu setting .... 19
Continuous-form paper
jams, clearing .............. 2-5
specifications ................ 24
Control panel ................ 11-14
Cut sheet specifications .... 2 5
D
Defaults, menu ...........116-18
resetting ........................ 15
Decollator menu
setting ............................... 19
Dimensions ........................ 25
DLL RAM ......................... 23
E
Electrical requirements ..... 26
Emulation mode menu
setting ............................... 19
Emulations ......................... 23
Envelope specifications ..... 26
Environmental
requirements ..................... 26
F
Factory settings, menu . 16-18
Fonts ............................ 13, 24
Form tear-off f eature ......... 21
menu setting ................. 19
Front panel ................... 11-14
G
Graphics menu setting ...... 19
Graphics resolution ........... 23
H
High speed draft .......... 13, 24
Housing, cleaning ............... 7
Humidity requirements ..... 26
I
Indicator lights ...... 11, 13, 14
Interface............................. 23
I-Prime menu setting......... 19
J
Jams, paper .......................2-6
K
Keys
menu mode ................... 14
print mode ..................... 12
L
Label specifications .......... 25
Language set menu
setting ............................... 19
Letter quality fonts ...... 13, 24
Lights, control
panel ..................... 11, 13, 14
Line spacing menu
setting ............................... 19
M
Maintenance ..................... 1-7
Menu
items ........................ 19-21
mode ........................ 14-14
settings .....................16-18
English
Help Guide 27
Page 34
O
Operator panel function
menu setting ..................... 20
P
Page length menu setting .. 20
Page length control menu
setting ............................... 20
Page width menu setting ... 2 0
Panel, front ................... 11-14
Paper
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 ........................ 2 4
Print quality ....................... 13
Print registration menu
setting ............................... 20
Print speed ......................... 23
Print suppress effective
menu setting ..................... 20
Printhead specifications .... 23
Problem solving ............. 8-10
Proportional spacing
menu setting ..................... 20
R
Rear feed paper
jams .............................. 2-5
Receive buffer size ...... 20, 23
Reliability .......................... 25
Repetitive paper jams ....... 4-5
Reset inhibit menu
setting ............................... 20
Resident fonts.................... 24
Ribbon replacement ......... 1-2
S
Scalable fonts .................... 24
SI select pitch menu
settings ............................. 20
Single sheet paper jams,
clearing............................... 6
Size menu setting .............. 20
Skip over perforation
menu setting ..................... 21
Slashed letter ‘O’ .............. 21
Specifications ............... 23-26
Storage
humidity ........................ 26
temperature................... 26
Style menu setting............. 21
T
Tear fea ture ........................ 21
Tear-off feature .................. 21
Temperature
requirements ..................... 26
Time out print menu
setting ............................... 21
Transparency
specifications.................... 26
Troubleshooting ............. 8-10
U
Utility mode ................ 13, 24
V
Voltage requirements ......... 26
W
Wait time menu setting ..... 21
Weight ............................... 26
Z
Zero character menu
setting ............................... 21
28 ML3390/91
Page 35
Oki Systems Company
Oki Systems (UK) Limited
550 Dundee Road
Slough Trading Estate
Slough
Berks. SL1 4LE
Tel: 01753-819819
Fax: 01753-819899
English
Help Guide 29
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