English
Help Guide 1
Every eff o rt 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.
Copyright 1996 by Oki. All rights reserved.
First edition January, 1996.
Written and produced by the Oki Documentation Dept.
English
Oki is a registered trademark of Oki Electric Industry
Company, Ltd.
Energy Star is a trademark of the United States En vironmental
Protection Agency
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Safety Instructions
Your Oki printer has been carefully designed to give you years of
safe, reliable performance. As with all electrical equipment, howe ver,
there are a few basic precautions you should take to avoid hurting
yourself or damaging the printer:
• Read the setup instructions in this handbook 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 it on
something unsteady, it may fall and be damaged; if you place
it on a soft surface, such as a rug, sofa, or bed, the vents may
become blocked, causing the printer to overheat.
• T o protect your printer from ov erheating, make sure all openings
on the printer are not blocked. Do not put the printer on or near
a heat source, such as a radiator or heat register . Keep it out of
direct sunlight. Allow enough room around the printer for
adequate ventilation and easy access to the paper trays.
• Do not use your printer near water, or spill liquid of any kind
on it.
• Be certain that your power source matches the rating listed on
the back of the printer. If you ar e 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 cannot plug it in,
chances are you have an older, non-earthed outlet; contact an
electrician to have the outlet replaced. Do not use an adapter to
defeat the earthing.
• 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 current (amperes) required by
all the equipment on the extension is less than the extension’s
rating. The total ratings of all equipment plug ged into the outlet
should not exceed 15 amperes.
• This printer must be installed near to a power outlet switch
which shall remain easily accessible.
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Help Guide 3
• Do not poke anything into the ventilation slots on 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.
• Lifting the top cover exposes hot surfaces. These are clearly
labelled. Do NOT touch them.
• Do not make any adjustments other than those outlined in the
handbook since you may 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.
This product complies with the requirements of the Council
Directives 89/336/EEC and 73/23/EEC on the approximation of
the laws of the member states relating to electromagnetic
compatibility and low voltage.
• Liquid has been spilled into the printer, or it has been e xposed
to water.
• The printer has been dropped, or the cabinet is damaged.
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• The printer does not function normally when you are
following the operating instructions.
4 OKIPAGE 4w
Energy Star
As an Energy Star Partner, Oki has
determined that this product meets the
Energy Star guidelines for energy
efficiency.
Contents
Safety Instructions ............................................................. 3
Replacing the Toner Cartridge........................................... 4
When to Replace the Toner Cartridge ............................... 9
Toner Cartridge Life .......................................................... 9
Cleaning the LED Array .................................................. 10
Replacing the Image Drum.............................................. 11
When to Replace the Image Drum Cartridge .................. 12
Image Drum Cartridge Life ............................................. 12
Using the Cleaning Page Feature..................................... 13
The Cleaning Page process.............................................. 13
Transporting Y our Printer ................................................ 13
Problem Solving .............................................................. 14
Print Quality Problems .................................................... 14
Software Problems........................................................... 15
Hardware Problems .........................................................16
Index ................................................................................ 18
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Help Guide 5
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6 OKIPAGE 4w
Replacing the Toner Cartridge
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1. Open the cover and remove the used toner cartridge.
Caution: Opening the top cover exposes hot surfaces
which are clearly labelled. Do NOT touch
them.
2. Shake the toner cartridge to evenly distribute toner.
Do not remove cartridge from packaging.
Help Guide 7
3. Unwrap the new cartridge.
4. Peel tape off bottom.
5. Insert the toner cartridge.
➊
6. When the cartridge is in place, push the grey lock lever
forward until it stops.
➋
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7. Clean the LED array (See page 10).
8. Close the printer cover.
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When to Replace the Toner Cartridge
Toner Cartridge Life
Replace the toner cartridge when you see the TONER LOW
message displayed on your screen. You can contin ue printing
using the toner in the printer reservoir . However , you should
replace the toner cartridge as soon as possible to maintain
print quality and avoid possible damage to the ima ging system.
Note: We recommend that you use genuine Oki consumable
products in your page printer . Oki’s microfine toner
gives you the ultimate in print quality. Third party
consumables may not give the same performance,
could damage your printer, and may affect the
warranty.
How long your toner cartridge lasts depends on the print
density, the percentage of the page that prints black.
A typical letter has 3% to 5% print density; graphics usually
have higher density . Higher print density means toner is used
up faster.
At 5% print density , a toner cartridg e will print an aver age of
1,000 pages. Remember, this is onl y an average: actual results
may vary.
The first toner cartridge in your new printer has to fill the drum
reservoir and saturate the developing roller with toner. The
‘Toner Low’ indication will therefore occur earlier than with
subsequent cartridges. This does not mean a reduced number
of pages can be printed from the first cartridge, it simply means
that the toner has been transferred to the drum reservoir.
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Help Guide 9
Cleaning the LED Array
Clean the LED Array:
• Whenever you install a new toner cartridge.
• If you see faded vertical areas or light printing down a
page.
• If printing is fuzzy or blurred.
Wipe the LED array gently with the cleaning pad that came
with your toner cartridge. You can also use a clean, lint free
cloth.
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10 OKIPAGE 4w
Replacing the Image Drum
1. Open the cover and remove the used image drum
cartridge.
2. Unwrap the new image drum cartridge and remove the
protective sheet.
3. Insert the new image drum cartridge.
Caution: The Image Drum’s green surface is delicate.
Do not touch it and take care not to scratch it.
4. Remove the protective plastic cover from the toner well
in the image drum unit.
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Help Guide 11
5. Install a new toner cartridge (See page 7).
When to Replace the Image Drum Cartridge
6. Reset the Drum Counter:
a. Enter the printer status monitor.
b. Click on the Settings tab.
c. Under Reset Item, click Drum Count, Reset.
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As the image drum approaches its end of life, CHANGE
DRUM displays on your screen. At this point, be sure you
have a new drum on hand. Replace the old one as soon as
print quality becomes faint or starts to deteriorate, or when
the toner cartridge nears empty and the TONER LOW
message displays.
Image Drum Cartridge Life
The life of an image drum depends on a number of factors,
including temperature and humidity, the type of paper you
use, and the number of pages per job.
The image drum cartridge should last about 10,000 pages for
continuous printing, up to 8,000 pages at 3 pages per job, and
about 4,500 pages at 1 page per job.
12 OKIPAGE 4w
Using the Cleaning Page Feature
T ransporting Y our Printer
The Cleaning Page process
• Removes residual impurities from printing surfaces.
• Reduces problems such as repeating marks, blotching,
and shading.
To generate a Cleaning Page, enter the printer status monitor
and click on the Settings Tab. Under Print Item click
Cleaning Page, Print.
If you need to transport your printer to another location,
including return for service, be sure to take the following
precautions:
1. Seal the toner cartridge and the image drum cartridge in
the black, light-proof bag provided.
2. Try to ensure that the printer remains the right way up
during transportation to avoid spillage of any residual
toner.
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Help Guide 13
Problem Solving
Print Quality Problems
T o v erify print quality problems, try printing several pag es to
check that the problem is persistent.
Problem: Printed page is blank.
Solution: The toner cartridge is missing or empty. Install
a new toner cartridge.
Problem: Printed page is fuzzy or blurred.
Solution: (1) Ensure that the top cover is firmly closed.
(2) Ensure that the image drum is located
correctly.
(3) Use the printer control panel software to
adjust the Darkness setting.
(4) LED array is dirty. Clean LED array.
(5) LED array is dislodged. Check alignment;
contact service.
Problem: Entire page prints faintly.
Solution: (1) The toner cartridge is installed incorrectly.
Reinstall the toner cartridge. Make sure the
tape is removed from the bottom of the toner
cartridge, the cartridge is seated correctly,
and the grey lever is pushed all the way
forward.
(2) Toner cartridge is empty. Replace the toner
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14 OKIPAGE 4w
cartridge.
Problem: Page prints all black.
Solution: Hardware problem. Contact service.
Problem: Page has grey background.
Solution: Static electricity, generally from dry
environments, causes toner to stick to
background. Change papers to a smoother laser
bond or use a humidifier.
Problem: Vertical black lines on printed page.
Problem: Smeared or blotched print.
Solution: (1) LED array is defective. Contact service.
(2) Is toner low? Replace toner cartridge.
Problem: V ertical white line or streaking on printed page.
Solution: (1) T oner is low and does not distribute properly .
Carefully remove drum and slowly shake
from side to side a few times to redistribute
toner .
(2) Image drum may be worn out; replace drum
or contact service.
(3) Clean the LED array.
Problem: Page has repetitive marks.
Solution: (1) Damaged image drum causes repetitive
marks due to surface nicks or scratches. Use
the printer control panel software to generate
a Cleaning Page; marks may be temporary.
(2) Install a new image drum cartridge.
Solution: (1) Dirty rollers; toner dropped inside printer.
Use the printer control panel software to
generate a Cleaning Page.
(2) Image drum problem; contact service.
Software Problems
It is essential to ensure that you have installed the correct Oki
printer drivers. If printing from a DOS box your application
should be set up for printing with an HP LaserJet II or
compatible driver.
Problem: Printing is garbled.
Solution: Incorrect driver is installed or selected. Install
or select Oki drivers provided with printer.
Problem: Printer’s output is below rated speed.
Solution: Much of the printing delay will be caused by
your application. Complex graphic images may
take longer to prepare for printing than simple
text documents.
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Help Guide 15
Hardware Problems
Problem: When you try to print nothing happens.
Solution: (1) Configuration error. Check cable
connection.
Problem: Printer freezes, or an error message displays,
when computer is restarted.
Solution: Starting the computer while the printer is on can
cause a communications error. Turn printer off
before restarting computer.
(2) If more than one printer is available, make
sure your printer has been selected.
(3) Check the printer status. If the printer light
flashes slowly, the print job is progressing.
If the light flashes rapidly , use the OKIP A GE
4w control panel software to examine printer
status.
Problem: Printing is garbled.
Solution: (1) Incorrect cable configuration. Check cable
configuration, type, continuity, and length.
Maximum length is 1.8 metres.
(2) See Software Problems.
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16 OKIPAGE 4w
Problem: Odours are given off by forms or adhesives
passing through the hot fusing unit.
Solution: Odours are not emitted by the printer . Make sure
the forms you use can withstand heating; provide
adequate ventilation. Pre-printed forms,
transparencies and adhesive labels must be able
to withstand 200°C (392°F) for 0.1 second.
Problem: Printer is on but must “warm up” before a job
is printed.
Solution: Power Save mode is set on to conserve energy,
the fuser must heat up before printing the next
job. T o eliminate warm-up delay , use the printer
control panel software to change Power Save
setting.
Problem: Printed paper curls excessively.
Problem: Printed paper emerges wrinkled.
Solution: Heat from the toner fusing process removes
moisture from paper and may cause curling. If
curling is severe:
(a) Turn paper over in the paper feeder. Put
paper in feeder with print facing the back of
the printer , look on the package for an arrow
or other indicator of the print side.
(b) A major cause of curl is improper storage.
Store paper in a dry place, lying flat. Do
not open the paper package until you are
ready to use the paper.
(c) Try to protect your paper from excessive
temperatures and rapid temperature changes.
Problem: Printer seems too hot.
Solution: The toner fusing process in your printer generates
a significant amount of heat, and the top cover
will feel quite warm. This is perfectly normal. If
the top cover becomes too hot to touch, switch
the printer off and call your dealer for advice.
Solution: Use the printer control panel software to change
the paper thickness setting to light.
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Help Guide 17
Index
C
Cleaning page feature 13
E
Energy Star 4
I
Image drum cartridge
Change Drum message 12
life of 12
replacing 11
when to replace 12
L
LED array
cleaning 10
P
Power
cable 3
rating 3
source 3
Problem solving
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hardware 16
print quality 14
software 15
S
Safety 3
T
Toner Cartridge
life of 9
replacing 7
when to replace 9
Transporting Your Printer 13
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User Notes
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Help Guide 19
Oki Systems Company
Oki Systems (UK) Limited
550 Dundee Road
Slough Trading Estate
Slough
Berks. SL1 4LE
Tel: 01753-819819
Fax: 01753-819899
English
20 OKIPAGE 4w
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