Oki ML3390 Operating instructions

English
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
ML 3390/3391
Help Guide
3390hlp1.pm6 22/03/96, 16:041

Every effort 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 Environmental
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.
3390hlp1.pm6 22/03/96, 16:042

iHelp Guide
English
• 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
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.
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English
ii ML3320/21
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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2ML3390/91
Set up for Single-Sheet FeedSet up for Rear Feed of Continuous Forms
Getting to KnowYour Printer
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
Access Cover
Carriage Cover
PaperSeparator
Platen Knob
Paper Lever
Control Panel
On-Off Switch
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
Carriage Cover Open
Access Cover
Paper Lever Platen Knob
Paper
Separator
Paper Guides
On-Off Switch
Control Panel
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Loading Paper
Loading Continuous Forms (Rear Feed)
We recommend the rear-feed path for printing reports, etc.,
on single-thickness, continuous-form paper. For graphics or
charts, it's best to use the single-sheet path (top feed).
Note: If you have paper in the paper path, be sure to
remove it before installing rear-feed paper.
Tractor Terms
Pins
Tractor Cover
Lock Lever

6ML3320/21
1. Move the paper lever to the position marked “REAR.” 3. Pull up on the lock levers and open the tractor covers.
P
TEA
R
FF/LOAD
LF
GR
Micro
Feed
U
Micro Feed
Down
PRIN
QUIETPARKTEAR
D
U
SET PRINT
TOF
d
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17 20 PROP
2. Grasp the paper separator, lift it slightly, pull back on it,
then swing it forward. 4. Move the right tractor over to fit the width of the paper.
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English
7Read Me First
5. Place the first two holes in the paper over the tractor pins
on either side and close the tractor covers. 7. Adjust the right tractor to centre the paper holes on the pins, and push back the lock lever.
➊
➊
➋
6. Move the left tractor to align the edge of the paper with
the appropriate reference mark (➊), and push back the
lock lever.
8. Lower the paper separator and place the wire guide (➊)
on the pull-up roller assembly (➋).
9. Press FF/LOAD. The paper feeds into the printer.
Note: The standard setting for the Top of Form (where
the printing begins) is 2.54cm down from the top of
the page. To change the setting, see page 9.
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8ML3320/21
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
MicroFeed
Up
MicroFeed
Down
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17 20 PROP
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
MicroFeed
Up
MicroFeed
Down
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17 20 PROP
➊
Loading Single Sheets (Top Feed)
Use the single-sheet path for letterhead stationery, memos,
and individual envelopes. It is recommended for printing
graphsand chartsbecauseitprovidesthe most accuratecontrol
of the paper.
Note: Ifyouhavecontinuous-formpaperin the path,press
the PARK button to remove it before loading single
sheets.
1. Make sure the printer is on and deselected (SEL light
off).
2. Place the paper lever in the position marked “TOP.”
3. Open the carriage cover and lift the paper separator to the
single-sheet position.
4. Makesurethewirefeedguide(➊)is in the paper separator.
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English
9Read Me First
M
QUI
ET
PARK
PRINT QUALITY
HSD
UTL
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
Micro Feed
Up
Micro Feed
Down
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17 20 PROP
➊➊
5. Adjust the paper feed guides (➊) for the width of the
paper and place a sheet of paper in the separator. The
paper will feed into the printer.
Note: The standard setting for the Top of Form (where
the printing begins) is 2.54cm down from the top of
thepage.To changethe setting,seethe next column.
Setting theTop of Form (TOF)
When setting the Top of Form, use the red line (➊) on the
paper shield as a reference:
1. Make sure the printer is deselected (SEL light off).
2. Press and hold SHIFT (➊), then:
☛Press LF (➋) to move Top of Form higher on page
☛Press FF/LOAD (➌) to move Top of Form lower on
page
QUIETPARKTEAR FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
Micro Feed
Up
Micro Feed
Down
➋➌➊
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10 ML3320/21
SEL
SEL
EX T
MENU
SEL
SEL
EX T
MENU
LF
GROUP
Micro Feed
Down
3. Press SEL to re-select the printer.
Temporarily Changing theTop of Form Setting
To set the Top of Form position lower for one page only:
1. Press SEL to deselect the printer.
2. Press LF to change the position of the Top of Form.
Note: This setting will not apply to any following pages.
Resetting theTop of Form to the Standard Setting
1. Turn the printer off.
2. Hold PARK + QUIET/TOF while turning the printer
back on.
QUIETPARKTEAR FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
Micro Feed
Up
Micro Feed
Down
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English
11Read Me First
➊
Switching Paper Paths
To switch from continuous-forms to single-sheet feed:
1. Tear off any printed pages.
2. Press PARK.
3. Movethe paper separator to the single-sheet feed position.
4. Place the wire feed guide in the paper separator.
5. Move the paper lever to the position marked “TOP.”
6. Place a sheet of paper in the paper separator.
To switch from single-sheet feed to continuous forms:
1. Press FF/LOAD to remove the single-sheet paper.
2. Lower the paper separator into the continuous-forms
position and swing the wire feed guide over onto the
pull-up roller.
3. Move the paper lever to the position marked “REAR” or
“BOT,” as appropriate.
4. Load continuous-form paper, then press FF/LOAD.
Setting the Printhead Gap
The printhead gap is the distance between the printhead and
the platen. To adjust the gap, open the access coverandmove
the blue lever (➊) to the recommended setting from the table
below.
Note: It is recommended that the printer be switched off
prior to removing the access cover.
Media Setting Media Setting
45-75g/m² paper 1 2-part form (w/carbon) 3-4
75-90g/m² bond paper 2 3-part form (w/carbon) 4-5
Labels 3-4 4-part form (w/carbon) 5
Envelopes 5
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12 ML3320/21
LF
GROUP
Micro Feed
Down
QUIET
TOF
Running the SelfTests
Font SampleTest
To run the test: Turn the printer off, then press and hold
LF while turning the printer on.
To stop the test: If you wish to stop the test before it is
complete, press SEL.
ASCIITest
To run the test: Turn the printer off, then press and hold
QUIET while turning the printer on.
To stop the test: Press SEL.
Selecting an Emulation
Your printer has three emulations:
• Epson®FX
• IBM®Proprinter III
• MICROLINE®Standard
The printer comes set for the IBM Proprinter III emulation.
To change to one of the other emulations:
1. Make sure paper is loaded.
2. Deselect the printer (SEL light off, press SEL key).
3. Press SHIFT + SEL: the printer will enter the Menu
Mode.
QUIETPARKTEAR FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
Micro Feed
Up
Micro Feed
Down
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English
13Read Me First
QUIETPARKTEAR FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
Micro Feed
Up
Micro Feed
Down
LF
GROUP
Micro Feed
Down
4. PressLF.
The following line will print:
Printer Control Emulation Mode IBM PPR
5. PressTEAR consecutively until the emulation you wish
to select prints in the right-hand column.
6. Press SHIFT + SEL to save your setting and exit the
Menu Mode.
TEAR
NU
SET
Selecting a Printer Driver
Before you can use your printer with software, you must enter
the software and select the correct printer driver. If you have
the wrong driver selected, you will see strange characters,
incorrect fonts, etc.
Important! See your software documentation for
information on how to select a printer driver.
Printer Drivers
The drivers below are listed bydecreasingcompatibility with
your printer:use one as close to the top of the list as possible.
IBM Proprinter III Epson FX Microline Standard
ML3320/1 IBM ML3320/1 Epson Microline 320/321
IBM Proprinter III Epson FX286e Microline 320/321
IBM Proprinter II Epson FX 850/1050 Microline 320/321
IBM Proprinter Epson FX 86/286 Microline 292/293
IBM Graphics Printer Epson FX Microline 192/193
Epson FX800/1000 Microline 182/183
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Help Guide 1
English
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
3. Remove and discard the used ribbon cartridge.
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2ML3390/91
5. Install the new ribbon cartridge.
6. Turn the knob (➊) in the direction of the arrow to take up
any ribbon slack.
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.
A
➊
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Help Guide 3
English
6. Turn the printer on.
7. Press FF/LOAD.
3. Remove any torn pieces of paper.
4. Replace the pull-up roller assembly, and close the access
cover.
5. Reload paper.
FF/LOAD
MN
ITEM
Micro Feed
Up
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4ML3390/91
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
Micro Feed
Up
Micro Feed
Down
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17 20 PROP
Correcting Repetitive Rear-Feed Jams
If the paper keeps jamming, you probably have bits of paper
stuck in the paper path.
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
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.
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.
QUIETPARKTEAR
AD
NU
SET PRINT
TOF
ed
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17 20 PROP
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Help Guide 5
English
5. Remove the paper pieces, and use the platen knob to back
the paper out.
6. Swing the paper separator over, reload regular 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
ITEM
Micro Feed
Up
QUIETPARKTEAR
FF/LOAD
MENU
I
TEM SET PRINT
TOF
MicroFeed
Up
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17 20 PROP
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6ML3390/91
Single-Sheet Jams
1. Turn the printer off.
2. Use the platen knob to back the jammed paper out.
3. Open the access cover and remove the pull-up roller
assembly.
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
MicroFeed
Up
MicroFeed
Down
CHARACTER PITCH
10 12 15
17 20 PROP
PRINT QUALITY
LQ
UTILITY
COURIER
PRESTIGE
GOTHIC
ROMAN
ORATOR
SWISS
4. Remove any torn pieces from around the carriage.
5. Reinstall the pull-up roller assembly, and close the access
cover.
6. Turn the printer on, and reload paper.
QUIETPARKTEAR
FF/LOAD
LF
SEL
SEL
POWER ALARM MENU
GROUPEXIT ITEM SET PRINT
MENU SHIFT TOF
MicroFeed
Up
MicroFeed
Down
PRINT QUALITY
CHARACTER PITCH
HSD
NLQ
UTL
SSD
10 12 15
17 20 PROP
3390hlp3.pm6 22/03/96, 16:056