Every effort has been made to ensure that the information in this document is complete,
accurate, and up-to-date. The manufacturer assumes no responsibility for the results of
errors beyond its control. The manufacturer 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 the manufacturer.
While all reasonable efforts have been made to make this document as accurate and helpful
as possible, we make no warranty of any kind, expressed or implied, as to the accuracy or
completeness of the information contained herein.
The most up-to-date drivers and manuals are available from:
Oki is a registered trademark of Oki Electric Industry Company, Ltd.
Oki Printing Solutions is a registered trademark of Oki Data Corporation.
Hewlett-Packard, HP, and LaserJet are registered trademarks of Hewlett-Packard
Company.
Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corporation.
ENERGY STAR is a trademark of the United States Environmental Protection Agency.
Apple, Macintosh, Mac and Mac OS are registered trademarks of Apple Computer.
Other product names and brand names are registered trademarks or trademarks of their
proprietors.
As an ENERGY STAR Program Participant, the manufacturer has determined
that this product meets the ENERGY STAR guidelines for energy efficiency.
This product complies with the requirements of the Council Directives 2004/
108/EC (EMC) and 2006/95/EC (LVD)as amended where applicable on the
approximation of the laws of the member states relating to electromagnetic
compatibility and low voltage.
The following cables were used to evaluate this product to achieve EMC directive
2004/108/EC compliance and configurations other than this may affect that compliance.
CABLE TYPELENGTH
(METRE)
Power1.8
USB3
Serial2
Parallel2
CORESHIELD
✘✘
✘✔
✘✔
✘✔
Preface > 2
M
ANUFACTURER
Oki Data Corporation,
4-11-22 Shibaura, Minato-ku,
Tokyo 108-8551,
Japan
I
MPORTER TO THE
Oki Europe Limited (trading as OKI Printing Solutions)
Blays House
Wick Road
Egham
Surrey TW20 OHJ
United Kingdom
For all sales, support and general enquiries contact your local distributor.
NOTE
A note provides additional information to supplement the main text.
CAUTION!
A caution provides additional information which, if ignored, may
result in equipment malfunction or damage.
WARNING!
A warning provides additional information which, if ignored, may
result in a risk of personal injury.
For the protection of your product, and in order to ensure that you benefit from its full
functionality, this model has been designed to operate only with genuine original ribbon
cartridges. Any other ribbon cartridge may not operate at all, even if it is described as
“compatible”, and if it does work, your product's performance and print quality may be
degraded.
Specifications subject to change without notice. All trademarks acknowledged.
Notes, cautions and warnings > 6
I
NTRODUCTION
Congratulations on purchasing this printer!
The ML5100FB is designed to provide highly reliable letter quality printing and high
resolution graphics for the desktop/office printing environment. It combines state-of-theart, 24-pin, serial impact dot matrix printing technology with advanced materials and
superior construction to provide high performance and versatility in a desktop sized unit.
Careful attention to ergonomics and application needs provides user friendly operation for
operators of varying technical capabilities.
A
BOUT THIS GUIDE
This manual is your user’s guide (check the web site, www.okiprintingsolutions.com, for the
most up-to-date version) for your printer and forms part of the overall user support listed
below:
>Installation Safety booklet: provides information as to safe use of the printer.
This is a paper document that is packaged with the printer and should be read before
setting up your printer.
>Set-up guide: to describe how to unpack, connect and turn on your printer.
This is a paper document that is packaged with the printer.
>This User’s Guide: to help you to become familiar with your printer and make the
best use of its many features. Also included are guidelines for troubleshooting and
maintenance to ensure that it performs at its best.
This is an electronic document stored on the manuals CD.
>Technical Reference Guide: to provide detailed technical information for
programmers and more technical users.
This is an electronic document available on the web site
www.okiprintingsolutions.com.
>On-line Help: on-line information accessible from the printer driver and utility
software.
ON-
LINE USAGE
This guide is intended to be read on screen using an Adobe Acrobat Reader. Use the
navigation and viewing tools provided in Acrobat.
You can access specific information in two ways:
>In the list of bookmarks down the left hand side of your screen, click on the topic of
interest to jump to the required topic. (If the bookmarks are not available, use the
“Contents” on page 4.)
>In the list of bookmarks, click on Index to jump to the Index. (If the bookmarks are
not available, use the “Contents” on page 4.) Find the term of interest in the
alphabetically arranged index and click on the associated page number to jump to
the page containing the term.
Introduction > 7
P
RINTING PAGES
The whole manual, individual pages, or sections may be printed. The procedure is:
1.From the toolbar, select File, then Print (or press the Ctrl + P keys).
2.Choose which pages you wish to print:
(a)All pages, (1), for the entire manual.
(b)Current page, (2), for the page at which you are looking.
1
2
3
(c)Pages from and to, (3), for the range of pages you specify by entering their
page numbers.
3.Click on OK.
Introduction > 8
G
ETTING STARTED
WARNING!
If you have not already done so, familiarise yourself with the
content of the Installation Safety booklet supplied with your
printer.
R
ETAINING PACKING MATERIALS
After setting up your printer according to the instructions in the Set-up Guide, retain your
packing materials and container in case you ever need to ship or transport your printer.
I
DENTIFYING COMPONENT PARTS
The main parts of your printer are identified and briefly explained below.
F
RONT VIEW
2
1
7
8
6
5
9
4
3
1.Print Head: prints the characters on the paper.
2.Top Cover: open and close for access, for example when changing a ribbon
cartridge. Keep closed for noise reduction.
3.Power Switch: to turn the printer power ON/OFF.
4.Paper Tray: to hold cut sheet paper for use by the printer (one sheet at a time).
5.Paper Guide: can be adjusted as required to locate the left edge of cut sheet paper.
6.Paper Type Lever: set according to the type of paper used – cut sheet or continuous
forms.
7.Paper Thickness Lever: set according to the thickness of the paper.
8.Ribbon Cartridge: holds the printer ribbon.
9.Paper Feed Guide: lift and slide to access print head.
Getting started > 9
R
EAR VIEW
6
1
2
5
4
3
1.USB connector: connect to USB interface cable.
2.Parallel connector: connect to parallel interface connector.
3.Serial connector: connect to serial interface cable.
4.Pin Tractor: to load and feed continuous forms.
5.Power connector: connect to printer power cable.
6.Operator Panel: contains button switches and indicators (described in detail later)
that allow you to operate the printer.
L
OCATING YOUR PRINTER
>Select a firm, solid surface on which to site your printer.
>Allow enough space around your printer (e.g. at least 60 cm from any wall) for easy
access to the paper feed paths.
>=
>Make sure a grounded power outlet is available nearby.
Getting started > 10
P
OWERING ON YOUR PRINTER
WARNING!
Operations of this equipment are not warranted when the
equipment is connected to UPS (Uninterruptible Power Supply)
and/or inverter. Doing so may result in damage of this equipment.
Do not use an UPS and/or inverter.
1.Ensure that your printer Power Switch is set to OFF.
ON OFF
2.Connect the power cable connector (1) to the power connector (2) on the printer.
1
2
3.Connect the power cable to a 220/240 V AC power outlet and switch on the outlet
power.
4.Turn the printer Power Switch to ON.
ON OFF
5.Check that the POWER and SEL indicator on the control panel illuminates.
Getting started > 11
P
RODUCING A TEST PRINT
To check that your printer is operational, produce a test print on a sheet of 80 gsm A4 paper
(for example) as follows:
CAUTION!
>Allow at least 5 seconds between turning the printer ON after
turning it OFF. A shorter time interval between turning ON/OFF
operations may cause printer power failure.
>Do not turn the printer OFF while it is printing as this may result
in damage to the print head.
1.Turn the printer Power Switch to OFF.
2.Set the Paper Type Lever to cut sheet and set the Paper Thickness Lever to position
1.
3.Press and hold the LF/FF button and turn the Power Switch to ON. The alarm
indicator should be illuminated to indicate that there is no paper in the printer.
4.With the long side of the paper against the paper guide, insert the paper carefully
into the printer. The printer will automatically grip the paper and start the test print.
NOTE
If required, you can pause the test print by pressing the SEL button and then
resume the test print by again pressing the SEL button.
5.When the test print has completed, the paper is automatically ejected.
NOTE
If you want to abort the test print for any reason, press the SEL button
followed by the LOAD/PARK button to eject the paper and then turn the printer
Power Switch to OFF.
Getting started > 12
C
ONNECTING TO A COMPUTER
In this section you will interconnect your printer and computer, install the printer driver in
your computer and print a test page.
I
NTERCONNECTING PRINTER AND COMPUTER
I
NTERFACES
Your printer is equipped with three data interfaces:
CAUTION!
Do not use more than one of the following data interface methods
to connect to your PC.
>Parallel: for direct connection to a PC. This port requires a bi-directional (IEEE 1284
compliant) parallel cable.
>USB: for connection to a PC running Windows 2000 or above. This port requires a
shielded cable 3m long conforming to USB version 2.0.
>Serial: for direct connection to a PC. This port requires a bi-directional RS232C serial
interface cable.
NOTE
Interface cables are not supplied with your printer.
I
NTERCONNECTION
1.Ensure that both printer and computer are turned OFF.
2.Connect the required interface cable, USB (1) or parallel (2), or serial (3) to the
printer and then to the computer (3).
1
3
2
3.Turn ON the printer and then turn ON the computer.
Connecting to a computer > 13
I
NSTALLING THE PRINTER DRIVER
Insert the Drivers CD into your computer and follow the on-screen instructions to install
the printer driver for use with your printer.
P
RINTING A TEST PAGE
As an example, using Windows XP:
1.Use Start > Printers and Faxes to show the Printers and Faxes window.
2.Highlight the driver for your printer.
3.Use File > Properties to show the Properties window.
4.On the General tab, click the Print Test Page button.
5.Ensure that a test page has printed, verifying your printer – computer setup.
Connecting to a computer > 14
P
RINTING FROM A COMPUTER
When printing to your printer from, for example, a Windows application on your computer,
make your printing selections from the driver windows that appear on screen. These driver
windows have been designed to be easy to use and intuitive while supplementary on-line
help is available by clicking each window Help button.
Printing from a computer > 15
P
APER HANDLING
This section describes how to use cut sheet paper and continuous forms in your printer.
L
OADING CUT SHEET PAPER
1.Ensure that the printer is turned ON.
NOTE
If there are any continuous forms in the printer, eject them as described in
“Removing continuous forms” on page 21.
2.Ensure that the Pin Tractor covers (1) are closed to avoid the possibility of paper
jams.
1
3.Ensure the Paper Type Lever (1) is set to Cut Sheet.
1
4.Set the left margin of the paper by adjusting the Paper Guide (1) along the scale (2)
relative to the start of printed line marker arrow (3).
1
4
3
1
Paper handling > 16
2
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