Oki ML3321, ML3320 User Manual

ML 3320/3321

SEL

SHIFT

FF/LOAD

Micro Feed Down

POWER ALARM

Micro Feed Up

GROUPEXIT

ITEM SET

PRINT QUALITY

QUIETPARKTEAR

HSD

TOF

NLQ

CHARACTER PITCH

10 12 15

20 PROP

English

UTL

SSD

Help Guide

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.

First edition March 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.

Safety

Your Oki 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 in this manual carefully. Be sure to save it 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 an earthed, 3-pin plug as a safety feature, and it will only fit into an 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 an 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 rating. Generally, the total ratings of all equipment plugged into any one power line should not exceed 15 amperes. Don’t exceed this unless you know that the power line your equipment is plugged into has a rating above 15 amperes.

English

iHelp Guide

• 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 this handbook, do not 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 handbook, 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 dealer. 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 does not function normally when you are following the operating instructions.

English

ii ML3320/21

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 .............................................. 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

Changing the Menu Settings ........................................... 15

Summary of Menu Settings............................................. 16

Explanations of Menu Items............................................ 19

Using the Printer's Features ............................................. 21

T ear F eature ..................................................................... 21

Forms Tear-Off Feature ................................................... 21

Paper Park Feature........................................................... 22

Specifications................................................................... 23

Index ................................................................................ 26

English

iiiHelp Guide

English

iv ML3320/21

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!

English

3. Remove and discard the used ribbon cartridge.

➊

4. Unpack the new ribbon cartridge.

1Help Guide

5. Install the new ribbon cartridge.

6. Turn the knob ( ➊) in the direction of the arrow 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.

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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 .

5. Reload paper.

7. Press FF/LOAD.

FF/LOAD

Micro Feed

ITEM

English

3Help Guide

Correcting Repetitive Rear-Feed Jams

QUIETPARKTEAR

SET

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

SEL

SHIFT

FF/LOAD

Micro Feed Down

POWER ALARM

Micro Feed

PRINT QUALITY

GROUPEXIT

ITEM SET

QUIETPARKTEAR

HSD

UTL

TOF

NLQ

SSD

CHARACTER PITCH

10 12 15

20 PROP

4 ML3320/21

to draw the quadruple-thick page around the platen: this brings out any jammed bits of paper.

5. Remove the paper pieces, and use the platen knob to

FF/LOAD

ITEM

Micro Feed

back the paper out.

FF/LOAD

Micro Feed

PRINT QUALITY

QUIETPARKTEAR

TEM SET

HSD

UTL

TOF

NLQ

SSD

CHARACTER PITCH

10 12 15 17

20 PROP

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 .

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8. Turn the printer on.

9. Press FF/LOAD.

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