ML5720/ML5721/ML5790/ML5791
ML5720/ML5721/ML5790/ML5791
PREFACE
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:
www.okiprintingsolutions.com
07106001 Iss. 1; Copyright © 2010 Oki Europe Ltd. All rights reserved.
Oki is a registered trademark of Oki Electric Industry Company, Ltd.
Oki Printing Solutions is a 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 trademarks of Apple Inc.
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), 2006/95/EC (LVD) and 2009/125/EC (EuP) as amended where
applicable on the approximation of the laws of the member states relating to
electromagnetic compatibility, low voltage and Energy Using Products.
This product complies with EN55022 Class B. However, when fitted with the
optional network interface card, RS232C serial interface card or optional cutsheet feeder, compliance to EN55022 is Class A. In a domestic environment
this configuration may cause radio interference, in which case the user may be
required to take adequate control measures.
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 TYPE
LENGTH
(METRE)
CORE
SHIELD
Power
1.8
✘
✘
USB
5.0
✘
✔
Parallel
1.5
✘
✔
LAN
5.0
✘
✘
Serial
2.1
✘
✔
Preface > 2
MANUFACTURER
Oki Data Corporation,
4-11-22 Shibaura, Minato-ku,
Tokyo 108-8551,
Japan
IMPORTER TO THE EU/AUTHORISED REPRESENTATIVE
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.
ENVIRONMENTAL INFORMATION
Manufacturer > 3
CONTENTS
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Importer to the EU/authorised representative. . . . . . . . . . . . . . . . . . . . .3
Environmental Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Notes, cautions and warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . .
About this guide . . . . . . . . . . . . . . . . . . . . . . .
On-line usage . . . . . . . . . . . . . . . . . . . . . . .
Printing pages. . . . . . . . . . . . . . . . . . . . . . .
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Getting started . . . . . . . . . . . . . . . . . . . . . . . . .
Retaining packing materials . . . . . . . . . . . . . . .
Identifying component parts . . . . . . . . . . . . . . .
Front view . . . . . . . . . . . . . . . . . . . . . . . . .
Internal view . . . . . . . . . . . . . . . . . . . . . . .
Rear view . . . . . . . . . . . . . . . . . . . . . . . . . .
Locating your printer . . . . . . . . . . . . . . . . . . . .
Powering on your printer . . . . . . . . . . . . . . . . .
Powering off your printer . . . . . . . . . . . . . . . . .
Producing a test print . . . . . . . . . . . . . . . . . . .
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Connecting to a computer . . . . . . . . . . . . . . . . .
Interconnecting printer and computer . . . . . . . .
Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnection . . . . . . . . . . . . . . . . . . . . . .
Emulations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the printer driver. . . . . . . . . . . . . . . .
Printing a test page . . . . . . . . . . . . . . . . . . . . .
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Printing from a computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
OKI DIPUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Controlling the printer using DIPUS . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Paper handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Loading continuous forms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Feeding continuous forms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Rear feed (push) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Front feed (push) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Tearing off continuous forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Aligning the tear-off perforations. . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Removing continuous forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Loading cut sheet paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Ejecting cut sheet paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Changing paper paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Loading the optional cut-sheet feeder . . . . . . . . . . . . . . . . . . . . . . . . .31
Loading the optional roll paper stand (ML5720/ML5790) . . . . . . . . . . . .32
Setting the Paper Thickness lever . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Operating instructions . . . . . . . . . . . . . . . . . . .
Operator panel . . . . . . . . . . . . . . . . . . . . . . . .
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . .
Button functions . . . . . . . . . . . . . . . . . . . . . . .
Setting menu values . . . . . . . . . . . . . . . . . . . .
Confirming current settings . . . . . . . . . . . . .
Contents > 4
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. . . . . . . . . . . . .36
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Menu setting. . . . . . . . . . .
Menu items and settings
Initialising menu settings
Adjusting TOF position . . . .
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.41
.42
.57
.57
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . .
Clearing paper jams . . . . . . . . . . . . . . . . . . .
Cut sheet paper jammed in printer . . . . . . .
Continuous forms jammed in printer . . . . . .
Responding to alarm conditions. . . . . . . . . . . .
Responding to general problems . . . . . . . . . . .
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. . . . . . . . . . . . . .59
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Cleaning your printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Printer exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Printer interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Consumables and accessories . . . . . . . . . . . . .
Consumables . . . . . . . . . . . . . . . . . . . . . . . .
Changing a ribbon cartridge . . . . . . . . . . . .
Consumable order information . . . . . . . . . .
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Installing Options . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Cut-sheet feeder . . . . . . . . . . . . . .
Installing the Roll paper stand (ML5720/ML5790) .
Installing the Network and serial interface card. . .
Option order numbers . . . . . . . . . . . . . . . . . . . .
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Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Oki Printing Solutions contact details . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Contents > 5
NOTES, CAUTIONS AND WARNINGS
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
INTRODUCTION
Congratulations on purchasing this printer!
This printer series is designed to provide highly reliable letter quality printing and high
resolution graphics for the desktop/office printing environment. It combines state-of-theart, 18-pin (ML5720/ML5721) and 24-pin (ML5790/ML5791), 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.
ABOUT 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 support web site.
>
Network Guide: to provide detailed technical information for network
administrators to configure the optional accessory network interface.
This is an electronic document stored on the CD that accompanies the network
interface card optional accessory.
>
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
PRINTING 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)
3.
Pages from and to, (3), for the range of pages you specify by entering their
page numbers.
Click on OK.
Introduction > 8
GETTING STARTED
WARNING!
If you have not already done so, familiarise yourself with the
content of the Installation Safety booklet supplied with your
printer.
RETAINING 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.
IDENTIFYING COMPONENT PARTS
The main parts of your printer are identified and briefly explained below.
FRONT VIEW
9
10
8
7
1
9
6
2
5
3
4
1.
Power Switch: to turn the printer power ON/OFF.
2.
Operator Panel: contains button switches and indicators (described in detail later see
“Operator panel” on page 36) that allow you to operate the printer.
3.
Front Feed Paper Tray: to feed cut sheet from the front.
4.
Front Cover: open to fit the front feed paper tray or to fit the tractor.
5.
Platen Knob
6.
Paper Type Lever: set according to the type of paper feed - front feed (cut sheet),
continuous rear feed, continuous front feed or continuous bottom pull.
7.
Pull-up Guide Assembly support
8.
Top Feed Paper Tray: raise to feed cut sheet paper from the top.
9.
Paper Guide: can be adjusted as required to locate the left edge of cut sheet paper.
10.
Top Cover: open and close for access, for example when changing a ribbon
cartridge. Keep closed for noise reduction.
Getting started > 9
INTERNAL VIEW
11
12
13
14
11.
Paper Thickness Lever: set according to the thickness of the paper.
12.
Ribbon Cartridge: holds the printer ribbon.
13.
Print Head: prints the characters on the paper.
14.
Pull-up Guide assembly: remove when using optional Pull tractor and optional Cutsheet feeder.
REAR VIEW
18
19
17
16
15
20
15.
USB connector: connect to USB interface cable.
16.
Parallel connector: connect to parallel interface connector.
17.
Optional Serial/Network connector: connect to serial interface or network.
18.
Optional CSF/RPS connector: connect to cut-sheet feeder or roll paper stand.
19.
Ventilator
20.
A/C Input: connect to printer power cable.
Getting started > 10
LOCATING 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.
POWERING 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.
Getting started > 11
2.
Connect the power cable connector (1) A/C Input (2) on the printer.
3b
3a
2
1
3.
Connect the power cable to a 220/240 V AC (3a) power outlet and switch on the
outlet power (3b).
WARNING!
Be careful when inserting a three-pronged AC plug. Before
plugging it in, check the position of the FG terminal. Incorrect
insertion may cause damage not only to the printer main body but
also peripheral devices and electric shock, smoke and ignition.
4.
Turn the printer Power Switch to ON.
5.
Check that the SLEEP, ALARM, SEL, TEAR, PRINT QUALITY, CHR PITCH and PRINT
SPEED indicators on the operator panel illuminate.
POWERING OFF YOUR PRINTER
1.
Turn the printer Power Switch to OFF.
Getting started > 12
2.
Switch off the outlet power (1a) and then unplug from the power outlet (1b).
1a
1b
3
2
3.
Unplug the power cable connector (2) from the printer (3).
PRODUCING 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!
1.
>
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.
Turn the printer Power Switch to OFF.
NOTE
Ensure that the ribbon cartridge is properly installed before printing a Test
Page.
2.
Set the Paper Type Lever to cut sheet and set the Paper Thickness Lever to position
1.
3.
Press and hold the SEL and LF/FF button and turn the Power Switch to ON. The SEL
LED will flash.
4.
Press and hold down the LF/FF button and then press the LOAD/EJECT button again.
The alarm indicator should be illuminated to indicate that there is no paper in the
printer.
5.
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.
6.
The printer will 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.
Getting started > 13
7.
When the test print has completed, press the LOAD/EJECT button to eject the paper.
NOTE
If you want to abort the test print for any reason, press the SEL button
followed by the LOAD/EJECT button to eject the paper and then turn the
printer Power Switch to OFF.
Getting started > 14
CONNECTING 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.
INTERCONNECTING PRINTER AND COMPUTER
INTERFACES
Your printer is equipped with two standard data interfaces:
>
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 5m long conforming to USB version 2.0.
NOTE
> This Interface default is set to Auto Interface see “Host Interface” on
page 53. The Auto Interface function will enable the printer to receive
data from the computer even when all the interfaces i.e. the Parallel, USB
and the optional Network or Serial interfaces are connected at the same
time. You can also select an individual interface to connect to the printer.
> Interface cables are not supplied with your printer.
The following interfaces are available as optional accessories and are described in their
accompanying installation documentation:
>
RS232 Serial interface
>
100BASE-TX/10BASE-T network connection
NOTE
Refer to the Network Guide for setting up the network connection.
Connecting to a computer > 15
INTERCONNECTION
1.
Ensure that both printer and computer are turned OFF.
2.
Connect the required interface cable, USB (1) or parallel (2), or serial or network (3)
to the printer and then to the computer.
3
2
1
NOTE
With the Auto Interface connection enabled, you can also connect all the
interfaces at the same time.
3.
Turn ON the printer and then turn ON the computer.
EMULATIONS
The factory default emulation for your printer is IBM PPR.
If you wish to change to one of the Epson or Microline emulations, see “To change a
setting:” on page 41 and “Printer Control” on page 42.
INSTALLING THE PRINTER DRIVER
The driver for your printer is provided on the CD included with the printer.
Insert the Drivers CD into your computer and follow the on-screen instructions to install
the printer driver for use with your printer.
NOTE
If the CD does not AutoPlay, click Start > Run > Browse, then browse to your
CD-ROM drive, double-click Setup.exe and click OK.
PRINTING 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 > 16
PRINTING 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.
OKI DIPUS
The OKI DIPUS utility allows you remote access to the printer settings using the available
applications. You can access DIPUS from Start > All Programs > Okidata > OKI DIPUS.
CONTROLLING THE PRINTER USING DIPUS
There are four utilities available within OKI DIPUS. Each utility provides access to the
printer settings from your computer. Using these utilities you can change the button
settings, menu settings, top of form settings and also view the current status of the printer.
Any changes made can then be uploaded to the printer and it will be saved to the printer
as new settings. These utilities are an alternative to the printer operator panel.
Button setup utility
Using this utility you can activate or deactivate buttons on your printer operator panel. Each
button and its function is described in a message view.
Menu setup utility
Using this utility you can view and change your printers’ Menu settings.
Status monitor
The Status Monitor utility allows you to view your printers’ current status for example, Online, On-line (power saving) and so on. In the event of a printer error occurring, a warning
message is also displayed.
TOF setup utility
Using this utility you can now set the first line of print (TOF) for each page. This utility
allows you to treat each print job individually.
For detailed information on each utility and the different settings contained within, refer to
the on-line help, by clicking each window Help button.
Printing from a computer > 17
PAPER HANDLING
This section describes how to use cut sheet paper and continuous forms in your printer.
LOADING CONTINUOUS FORMS
Setting up continuous forms
1.
To avoid paper feeding problems, carry out the following:Check your printer is on a
surface approximately 75 cm above the floor.
2.
Position the continuous forms supply directly below the printer, no more than 3 cm
left or right of the printer paper path.
3.
Ensure the rear of the printer is close to and parallel with the edge of the surface
and at least 60 cm from any wall.
Rear feed (Push)
60 cm
75 cm
3 cm
Bottom feed (Pull)
60 cm
75 cm
3 cm
NOTE
When the optional Pull Tractor is used.
Paper handling > 18
Front feed (Push)
60 cm
75 cm
3 cm
FEEDING CONTINUOUS FORMS
REAR FEED (PUSH)
1.
Ensure that the printer is turned ON.
NOTE
If there is a cut sheet in the printer, eject it as described in “Ejecting cut sheet
paper” on page 30.
2.
Ensure the Paper Type Lever is set to Continuous Forms “REAR”.
3.
Open the Top Cover and adjust the Paper Thickness Lever to suit the paper. See
“Setting the Paper Thickness lever” on page 33.
REAR
After adjusting, close the Top Cover.
NOTE
If the Paper Thickness Lever setting does not match the paper being used,
paper feeding and printing may not work properly.
4.
Remove the top tray by holding the tray by the tabs on both sides and pulling it up
from the printer.
Paper handling > 19
5.
Lift the locking lever (1) of the right Pin Tractor and slide the Pin Tractor as required
to adjust the paper position relative to the first horizontal character centre mark.
1
3
2
Press the locking lever back down to lock the Pin Tractor in the desired position.
6.
Lift the locking lever (2) of the left Pin Tractor and slide the Pin Tractor to the
required position to accommodate the width of the continuous forms to be used.
Move the rear paper guide (3) to midway between the left and right Pin Tractors.
7.
Open the left and right Pin Tractor covers (1) and feed the continuous forms in the
direction of the arrows, locating the sprocket holes (2) in the forms onto the
sprocket pins. Ensure that the forms are properly aligned on the sprocket pins, then
close the covers.
1
2
8.
Adjust the left Pin Tractor to accommodate the width of the continuous forms, taking
care that the forms are held neither too loosely nor too tightly between the Pin
Paper handling > 20
Tractors. Press the locking lever down to lock the right Pin Tractor in the desired
position.
9.
Lower the top paper tray and slide it towards the front of the printer until the marks
align.
10.
Press the LOAD/EJECT button. The continuous forms will be taken into the printer
and positioned at the first line print position and the SEL indicator will illuminate.
NOTE
> Raise the top paper tray if the paper does not feed properly when the rear
tractor is used. This will stabilise the paper movement and prevent
significant misalignment between the sheets when multi-part paper is
used and also erratic line spacing.
> When loading a specific type of continuous media using the Rear Feed, if
you encounter paper jam, erratic line spacing or misalignment between
the sheets of the multi-part paper due to the paper crumpling at the
perforations and varying binding strength, use the optional pull tractor
(bottom feed) to load this type of media.
Dismounting the rear pin tractor
To dismount:
1.
Ensure that the printer is turned OFF.
2.
Remove the top tray by holding the tray by the tabs on both sides and pulling it up
from the printer.
3.
Hold the Pin Tractor by its tabs on both sides.
Paper handling > 21
4.
Push the tabs in the arrow direction and then pull the Pin Tractor in your direction to
release it.
FRONT FEED (PUSH)
NOTE
If there is a cut sheet in the printer, eject it as described in “Ejecting cut sheet
paper” on page 30.
Moving the tractor assembly
1.
Ensure that the printer is turned OFF.
2.
Disconnect the power cord.
3.
Open the Top Cover.
WARNING!
Be careful as the print head may be hot after operation. Allow it to
cool before touching it.
Paper handling > 22
4.
Remove the Pull-up Guide assembly support.
5.
Remove the top tray by holding the tray by the tabs on both sides and pulling it up.
6.
Turn the printer, so that the back of the printer is facing you.
7.
Remove the tractor assembly. See “Dismounting the rear pin tractor” on page 21.
8.
Turn the printer, so that the front is facing you.
9.
Replace the top paper tray by aligning the arrows and then pushing it down.
Paper handling > 23
10.
Close the Top Cover.
11.
Open and remove the front cover (1).
1
NOTE
If front cover is already open and the front cut sheet paper tray has been
installed, gently lift the tray from the bottom and remove it, and then remove
the front cover.
12.
Holding by the tabs, guide the tractor into the side frames and push it downwards to
lock it in place.
Loading continuous form (front)
1.
Ensure that the printer is turned ON.
2.
Ensure that the Paper Type Lever is set to Continuous form “FRONT”
3.
Open the Top Cover, adjust the Paper Thickness Lever to suit the paper. See “Setting
the Paper Thickness lever” on page 33.
4.
Lift the locking lever of the left Pin Tractor and slide the Pin Tractor as required to
adjust the paper position then press the locking lever back down to lock the Pin
Tractor in the desired position.
5.
Lift the locking lever of the right pin tractor and slide the Pin Tractor to the required
position to accommodate the width of the continuous forms to be used. Move the
paper guide midway between the left and right Pin Tractors.
Paper handling > 24
FRONT
.
6.
Open the left and right Pin Tractor covers and feed the continuous forms in the
direction of the arrow, locating the sprocket holes in the forms onto the sprocket
pins.
NOTE
Ensure that paper is fed straight into the printer to avoid the possibility of
skew printing, irregular line feeding and paper jam.
7.
Ensure that the forms are properly aligned on the sprocket pins, then close the Pin
Tractor covers.
8.
Adjust the right Pin Tractor to accommodate the width of the continuous forms,
taking care that the forms are held neither too loosely nor too tightly between the
Pin Tractors. Press the locking lever down to lock the right Pin Tractor in the desired
position.
9.
Attach the front cover back in position and close the front cover.
10.
Press the LOAD/EJECT button. The continuous forms will be taken into the printer
and positioned at the first line print position and the SEL indicator will illuminate.
NOTE
When loading a specific type of continuous media using the Front Feed, if you
encounter paper jam, erratic line spacing or misalignment between the sheets
of the multi-part paper due to the paper crumpling at the perforations and
varying binding strength, use the optional pull tractor (bottom feed) to load
this type of media.
Dismounting the front pin tractor
To dismount:
1.
Ensure that the printer is turned OFF.
2.
Hold the Pin Tractor by its tabs on both sides.
Paper handling > 25
3.
Push the tabs in the arrow direction and then pull the Pin Tractor in your direction to
release it.
TEARING OFF CONTINUOUS FORMS
1.
With the SEL indicator illuminated, press the TEAR button to feed the continuous
forms to the tear-off position.
2.
Carefully tear off the forms along the tear-off perforations in the direction shown.
Using excessive force may result in tearing at a position other than the tear-off
perforations.
3.
When data is received by the printer or when the SEL button is pressed to select the
printer, the continuous forms is repositioned to the first line print position.
ALIGNING THE TEAR-OFF PERFORATIONS
If the tear-off perforations are not aligned with the paper cutter on the Top Cover, align
them as follows:
1.
With the SEL indicator illuminated, press the TEAR button to move the tear-off
perforations to the paper cutter on the Top Cover.
2.
Check the position of the tear-off perforations relative to the paper cutter. Adjust to
the desired tear-off position using Line Feeds (LF):
(a)
To move the form forward, press the TEAR and the SEL buttons together.
(b)
To move the form backward, press the TEAR and the LF/FF buttons together.
NOTE
ML5720/ML5721: Line Feeds are at 1/144 in.
ML5790/ML5791: Line Feeds are at 1/180 in.
3.
Release the buttons after the tear-off perforations have been aligned with the paper
cutter.
When data is received by the printer or when the SEL button is pressed to select the
printer, the paper will retract to the new position.
Paper handling > 26
REMOVING CONTINUOUS FORMS
1.
Tear off the continuous forms. See “Tearing off continuous forms” on page 26.
2.
Press the LOAD/EJECT button to move the front edge of the continuous forms
backwards to the Pin Tractors.
NOTE
> The printer switches to off line mode.
> The ALARM indicator illuminates to indicate there is no paper present.
> If sprocket holes of the last page of the forms disengage from the
sprocket pins, do not attempt to eject the paper to avoid the possibility of
a paper jam.
3.
Lift the Pin Tractor covers (1) and remove the forms.
1
4.
Close the Pin Tractor covers.
Paper handling > 27
LOADING 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 27.
2.
Ensure that the Pin Tractor covers (1) are closed to avoid the possibility of paper
jams.
3.
Ensure the Paper Type Lever is set to Cut Sheet.
4.
To load the cut sheet in the Top Feed Paper Tray, raise the top tray.
To load the cut sheet in the Front Feed Paper Tray, open the front cover and install
the front paper tray.
Paper handling > 28
5.
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.
1
2
1
2
Top Feed
6.
Front Feed
Open the Top Cover and Adjust the Paper Thickness Lever to suit the paper. See
“Setting the Paper Thickness lever” on page 33.
NOTE
If the Paper Thickness Lever setting does not match the paper being used,
paper feeding and printing may not work properly.
7.
With the printing side downwards for top feed and upwards for front feed and the
left edge aligned with the Paper Guide (1), carefully insert the paper on the Paper
Tray (2) into the printer until it is gripped.
1
2
1
2
Top Feed
Front Feed
NOTE
> Ensure that the paper is accurately aligned along the Paper Guide to avoid
the possibility of skew printing and paper jam.
> When printing an envelope, do not fold up the flap. A flap aligned along
the Paper Guide can lead to skew printing.
> If you are feeding thick paper, push it in sufficiently until it touches the
feed rollers, to avoid the possibility of skew printing and paper jam.
Paper handling > 29
EJECTING CUT SHEET PAPER
When the printer reaches the end of the cut sheet page it automatically ejects the page. If
required, add another sheet for the printer to continue printing from where it left off.
To eject a cut sheet left in the printer, carry out the following:
1.
Press the SEL button to put the printer off-line.
2.
Press the LOAD/EJECT button and the paper is ejected to the Paper Tray.
NOTE
Paper longer than A4 length (297 mm) may overlap and possibly fall off the
Paper Tray.
CHANGING PAPER PATHS
You can switch to cut sheet printing without removing continuous forms from the printer.
Continuous forms to cut sheet
1.
Tear the continuous form at the tear off position.
2.
Press the LOAD/EJECT button. The printer will retract the continuous form
automatically and set the printer in offline mode.
3.
Set the Paper Type Lever to Cut Sheet.
4.
To load cut sheet paper, see “Loading cut sheet paper” on page 28.
Cut sheet to continuous forms
1.
Remove any cut sheet paper in the printer.
2.
Set the Paper Type Lever to Continuous form (REAR or FRONT or PULL).
3.
To load continuous forms, see “Loading continuous forms” on page 18.
Paper handling > 30
LOADING THE OPTIONAL CUT-SHEET FEEDER
NOTE
For installation instructions, see “Installing the Cut-sheet feeder” on page 73.
4
3
2
1
5
6
1. Paper Set Lever
2. Right Paper Guide
3. Front Sheet Support
4. Rear Sheet support
5. Left Paper Guide
6. Locking Lever
1.
Ensure the Paper Type Lever is set to Cut Sheet.
2.
Open the Top Cover and adjust the Paper Thickness Lever to suit the paper. See
“Setting the Paper Thickness lever” on page 33.
3.
Remove the front sheet support (3).
4.
Place the paper set lever in the RESET position (1).
5.
Release the paper guides (2, 5) by pushing the locking levers (6) downward.
6.
Move the left paper guide to the position where you wish to set the left-hand edge of
the sheet, making sure that this paper guide is not set to the right of the paper out
sensor (the grove in the platen).
7.
“Flex a paper stack (not more than 170 sheets of 60 gsm paper). Square the stack,
turn over and repeat the bending. The stack of paper should not exceed 16mm
thickness.
8.
Insert the paper stack into the hopper and push it against the left paper guide (5),
making sure that the paper fits under the corner separators.
9.
Move the rear sheet support (4) to the center.
10.
Adjust the right paper guide to the paper width (2).
Paper handling > 31
11.
Push both paper guide locking levers (6) upward into the locked position.
12.
Push the paper set lever gently backward into the SET position.
CAUTION!
Ensure that the paper set lever is closed (towards the SET position)
before printing with the CSF. If it is left open, the friction rollers
will not be able to feed the paper, and the printer will print on the
platen and may damage the printhead and platen.
13.
Attach the front sheet support (3).
LOADING THE OPTIONAL ROLL PAPER STAND (ML5720/ML5790)
NOTE
For installation instructions, see “Installing the Roll paper stand (ML5720/
ML5790)” on page 75.
3
2
5
1
4
5
1. Roll Paper Stand
2. Paper Shaft
3. Paper Separator
4. Tension Bar
5. Paper Guide
1.
Set the Paper Type Lever to RPS.
2.
Open the Top Cover and adjust the Paper Thickness Lever to suit the paper. See
“Setting the Paper Thickness lever” on page 33.
3.
Open the paper separator all the way.
4.
Remove the paper roller.
Note that there is a disk on the left end of the roller.
5.
Slide the roller into a tube of paper.
Ensure the disk is on the left side and paper must roll up from the bottom.
6.
Replace the paper roller back into the stand, with the disc on the left side.
Paper handling > 32
7.
Feed the paper over the roller on the stand.
8.
Set the paper onto the platen from the top of the tension bar.
9.
Rotate the platen knob until the top edge of the paper reaches the roll paper, and
then set the Paper Type Lever to PULL to easily adjust the paper position.
10.
Align the paper so that the exit and entry paper edges align.
11.
Reset the Paper Type Lever to RPS.
12.
Move the paper guide and adjust it to the width of the paper.
13.
Lower the paper separator to its original position.
14.
Turn the platen knob to move the paper to the point where you want printing to
start.
a
b
d
c
CORRECT PAPER PATH
a. Paper Roll
b. Roll Paper Stand
c. Platen
d. Paper Guide
SETTING THE PAPER THICKNESS LEVER
There are 10 lever positions for printing purposes. The 10th position is also to facilitate
ribbon replacement.
Set the Paper Thickness lever for different paper types as follows:
LEVER POSITION
PAPER TYPE
1
2
3
4
5
6
7
Cut sheet paper
52 - 81 gsm
10
REMARKS
X
X
128 - 156 gsm
X
Postcard
X
Envelope
X
Continuous paper
81 - 128 gsm
9
See below
81 - 128 gsm
52 - 81 gsm
8
See below
X
X
Paper handling > 33
LEVER POSITION
PAPER TYPE
1
2
3
4
5
6
7
8
9
3 part
REMARKS
See below
Carbon paper or
Pressure- sensitive
paper (40 gsm)
2 part
10
X
X
4 part
X
5 part
X
6 part
X
7 part
X
Set the Paper Thickness lever for overall paper thickness as follows:
OVERALL PAPER THICKNESS
LEVER POSITION
0.06 - 0.10 mm
1
0.11 - 0.15 mm
2
0.16 - 0.20 mm
3
0.21 - 0.25 mm
4
0.26 - 0.30 mm
5
0.31 - 0.35 mm
6
0.36 - 0.40 mm
7
0.41 - 0.45 mm
8
0.46 - 0.50 mm
9
0.51 - 0.53 mm
10
NOTE
> Printing with lever positions 5 – 10 is not guaranteed.
> If the lever position does not suit the paper thickness, paper feeding and
printing may not work properly.
> Do not print bankbooks to avoid possible pin breakage/ribbon snagging.
> When lever positions 5 - 10 are selected, printing quality for carbon paper
may decline resulting in illegible characters for example.
Paper handling > 34
NOTE
> When using 3-inch wide media, change the Centering Position in the Menu
Settings to Mode 1. If the Centering Position is not set to 1, it will result in
Paper Jam.
> When loading envelopes, set the head gap based on the thickness of the
overlapped and glued areas of the envelope and not the thin area. This
will prevent dark printing in some areas on the envelope.
> Do not use glossy paper if it is not tested thoroughly. This type of paper is
left with marks from the paper feed roller or from rubbing. Also, the paper
may not feed properly, causing incorrect line spacing.
> Using Seal-type cards (for example to print bank/credit card balance
statements) may cause ink to transfer when the printed sides overlap.
Test it thoroughly to ensure it does not cause problems.
CAUTION!
>
Do not use Labels in individual sheets as the printing is not
guaranteed. Test thoroughly before use.
>
Be careful when using Labels as they may peel of their carrier
sheet if the adhesive is not strong. This can result in paper jam.
Feed Labels from the Front Tray instead of the Top Tray, as
feeding from the top may cause the Labels to peel off and cause
paper jams.
For information on using Envelopes, Labels and Card stock paper, refer to the Technical Reference
Guide.
Paper handling > 35
OPERATING INSTRUCTIONS
OPERATOR PANEL
The status/alarm indicators and button switches on the operator panel allow you to check
printer status and control the printer. You can also use OKI DIPUS utilities to check printer
status and control the printer from your computer, see “OKI DIPUS” on page 17.
Operating instructions > 36
INDICATORS
INDICATORS
COLOUR
STATUS
MEANING
SEL
Green
ON
Printer is on-line i.e. is available to print.
OFF
Printer is off-line i.e. is not available to print.
FLASHING
When flashing together with the ALARM
indicator, printing cannot be resumed at this
stage. Turn the power OFF, verify that the
carriage moves properly, then turn the power
ON again.
If the problem is still there after you turn the
power ON again, contact your dealer.
When flashing together with TEAR indicator,
indicates Top Cover is open.
ALARM
Red
ON
Paper end status i.e. no paper present.
OFF
Printer is in normal state.
FLASHING
When flashing together with the SEL indicator,
printing cannot be resumed at this stage.
Turn the power OFF, verify that the carriage
moves properly, then turn the power ON
again.
If the problem is still there after you turn the
power ON again, contact your dealer.
Indicates paper jam/media switch/incorrect
paper lever setting status
When flashing together with TEAR indicator,
indicates High temperature alarm status.
TEAR
Green
ON
Menu mode.
OFF
Tear down position.
FLASHING
Tear up position.
ON
Without ALARM indicator flashing:
ML5720/ML5721
PRINT QUALITY
1
2
3
Green
>
>
>
>
>
>
LED
LED
LED
LED
LED
LED
3
2
2 and 3
1
1 and 3
1 and 2
>
>
>
>
>
>
Indicates
Indicates
Indicates
Indicates
Indicates
Indicates
Operating instructions > 37
SSD is selected.
HSD is selected.
DRAFT is selected.
COURIER is selected.
GOTHIC is selected.
OCR-B is selected.
INDICATORS
COLOUR
STATUS
MEANING
CHR.PITCH
Green
ON
With TEAR indicator ON:
LED 1
Printer is in MENU setting mode.
ON
With Alarm indicator flashing:
1
2
>
>
>
LED 2
LED 1
LED 1 and 2
ON
>
>
>
>
>
>
Indicates paper loading jam.
Indicates paper park/eject jam.
Indicates incorrect media setting.
Without Alarm indicator flashing:
LED 2
LED 1
LED 1 and 2
>
>
>
Indicates 10CPI is selected.
Indicates 12CPI is selected.
Indicates 15CPI is selected.
FLASHING
With Alarm indicator flashing:
>
>
LED 2
Indicates incorrect paper lever setting.
FLASHING
Without Alarm indicator flashing:
>
>
>
>
>
>
LED 2
LED 1
LED 1 and 2
Indicates 17CPI is selected.
Indicates 20CPI is selected.
Indicates PROP (Proportional) is selected.
ML5790/ML5791
PRINT QUALITY
1
2
ON
>
>
>
>
>
>
>
3
CHR.PITCH
1
Green
Gr een
2
Without ALARM indicator flashing:
LED
LED
LED
LED
LED
LED
LED
LED
3
2
2 and LED 3
1
1 and LED 3
1 and LED 2
1, LED 2 and
3
1
Without ALARM indicator flashing:
>
>
>
>
LED
LED
LED
LED
3
2
2 and LED 3
1
Indicates
Indicates
Indicates
Indicates
GOTHIC is selected.
PRESTIGE is selected.
OCR-A is selected.
OCR-B is selected.
ON
With TEAR indicator ON:
LED 1
Printer is in the MENU setting mode.
FLASHING
Without ALARM indicator flashing:
>
>
>
>
>
>
LED 2
LED 1
LED 1 and LED 2
Indicates 17CPI is selected.
Indicates 20CPI is selected.
Indicates PROP (Proportional) is selected.
With ALARM indicator flashing:
LED 2
LED 1
LED 1 and LED 2
>
>
>
Indicates paper loading jam.
Indicates paper park/eject jam.
Indicates incorrect media setting.
FLASHING
With Alarm indicator flashing:
>
>
LED 2
ON
>
>
>
2
HSD is selected.
DRAFT is selected.
COURIER is selected.
ROMAN is selected.
SWISS is selected.
SWISS-B is selected.
ORATOR is selected.
>
>
>
>
>
>
>
Green
Indicates
Indicates
Indicates
Indicates
Indicates
Indicates
Indicates
FLASHING
ON
PRINT SPEED
>
>
>
>
>
>
>
Indicates incorrect paper lever setting.
With TEAR indicator OFF:
LED 2 ON
LED 1 ON
LED 1 and 2 ON
>
>
>
Indicates NORM (Normal Speed) is selected.
Indicates HIGH SPEED is selected.
Indicates QUIET print is selected.
>
Indicates HIGH COPY is selected.
FLASHING
>
SLEEP
Green
LED 2 FLASHING
FLASHING
Low power consumption mode.
Operating instructions > 38
BUTTON FUNCTIONS
The button functions described here are as in Print mode.
SWITCH
STATUS
FUNCTION
SEL
On-line
Sets the printer to off-line.
Off-line
Sets the printer to on-line.
On-line/Off-line
Feeds paper by one line.
LF/FF
When pressed for more than 500ms,
performs form feed.
LOAD/EJECT
On-line/Off-line
When no paper is loaded
Performs paper feed.
When paper is loaded:
TEAR
Continuous forms
Retracts the form to the Pin Tractor.
Cut-sheet paper
Ejects the cut sheet.
Pull feed
Ineffective.
On-line/Off-line
Continuous forms
Delivers the continuous form to the cut
position.
Pull feed
Ineffective.
PRINT QUALITY
On-line/Off-line
Select a font.
CHR. PITCH
On-line/Off-line
Select a character pitch.
PRINT SPEED
On-line/Off-line
Select print speed.
SEL + LF/FF
On-line/Off-line
Ineffective.
SEL + LOAD/EJECT
On-line
Ineffective.
Off-line
Holding down the SEL button and
pressing the LOAD/EJECT button
initialises the new Menu settings.
On-line
Ineffective.
Off-line
Selects MENU configuration.
LF/FF + LOAD/EJECT
On-line/Off-line
Ineffective.
LOAD/EJECT + SEL
On-line/Off-line
SEL + CHR.PITCH
LOAD/EJECT + LF/FF
TEAR + SEL
ML5720/ML5721
Performs microfeed (forward) 1/144 inch
when paper is loaded.
ML5790/ML5791
Performs microfeed (forward) 1/180 inch
when paper is loaded.
On-line/Off-line
ML5720/ML5721
Performs microfeed (reverse) 1/144 inch
when paper is loaded.
ML5790/ML5791
Performs microfeed (reverse) 1/180 inch
when paper is loaded.
On-line/Off-line
ML5720/ML5721
Performs microfeed (forward) 1/144 inch
when paper is in tear off position.
ML5790/ML5791
Performs microfeed (forward) 1/180 inch
when paper is in tear off position.
Operating instructions > 39
SWITCH
TEAR + LF/FF
PRINT QUALITY + SEL
PRINT QUALITY + LF/
FF
CHR.PITCH + PRINT
SPEED
STATUS
FUNCTION
On-line/Off-line
ML5720/ML5721
Performs microfeed (reverse) 1/144 inch
when paper is in tear off position.
ML5790/ML5791
Performs microfeed (reverse) 1/180 inch
when paper is in tear off position.
On-line/Off-line
ML5720/ML5721
Performs microfeed (reverse) 1/144 inch
when paper is in Top of Form position.
ML5790/ML5791
Performs microfeed (reverse) 1/180 inch
when paper is in Top of Form position.
On-line/Off-line
ML5720/ML5721
Performs microfeed (forward) 1/144 inch
when paper is in Top of Form position.
ML5790/ML5791
Performs microfeed (forward) 1/180 inch
when paper is in Top of Form position.
On-line/Off-line
Enters menu mode.
SETTING MENU VALUES
The following information explains the printer settings and how you can change them.
Printer items and their values are printed for reference.
CONFIRMING CURRENT SETTINGS
To print the current menu settings, use a cut sheet of A4 paper or continuous forms of width
at least 254 mm. In this example, two sheets of A4 paper is used.
1.
Set the Paper Type lever to cut sheet mode.
2.
To activate menu mode:
(a)
Ensure that the printer is powered ON.
(b)
Place the cut sheet on the front Paper Tray.
The cut sheet is gripped by the printer.
(c)
Press and hold down the CHR PITCH button and then the PRINT SPEED button
to enter menu mode, Menu print? is printed.
3.
Press PRINT QUALITY (PRINT) button and the printer prints out all the menu items
currently selected and their corresponding settings.
4.
Exit or proceed to change menu settings:
(a)
To exit menu settings confirmation, save the current settings, press CHR PITCH
and PRINT SPEED buttons together. Save menu is printed.
Press LOAD/EJECT button to eject the cut sheet paper.
(b)
To change the menu settings, see “Menu setting” on page 41.
Operating instructions > 40
MENU SETTING
NOTE
Before changing menu settings, you may wish to print the current menu
settings as in “Confirming current settings” on page 40.
1.
Ensure that the printer is turned ON.
2.
Place the cut sheet on the Paper Tray, the paper is gripped by the printer.
3.
Press and hold down the CHR PITCH button and then the PRINT SPEED button to
enter menu mode, Menu PRINT? is printed.
4.
Press the LF/FF (GROUP) or LOAD/EJECT (ITEM) or TEAR (SET) button to print the
first menu item.
5.
To change a setting:
(a)
Press LF/FF button to step forward and SEL + LF/FF to step backward to the
required group.
(b)
When in the required Group, press LOAD/EJECT button to step forward and SEL
+ LOAD/EJECT to step backward to the required item.
(c)
When in the required Item, press TEAR to step forward and SEL + TEAR/MENU
to step backward to the required value.
Repeat these steps to change the settings for other items.
6.
To exit menu settings confirmation, save the current settings, press CHR PITCH and
PRINT SPEED buttons together.
Save menu is printed.
7.
Press LOAD/EJECT button to eject the cut sheet paper.
NOTE
> A GROUP is the general classification of functions/features.
> An ITEM is the name of the function/feature.
> A SET is the value in an Item.
> Switching the printer OFF does not save the new settings.
Operating instructions > 41
MENU ITEMS AND SETTINGS
In the menu settings tables below, factory default settings are shown in bold.
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
ML5790/ML5791
Printer
Control
Emulation Mode
Select emulation mode.
IBM PPR, EPSON FX,
ML
EPSON LQ, IBM PPR,
IBM AGM
Font
Print Mode
Select quality of ANK
characters.
Draft
NLQ Courier
NLQ Gothic
NLQ OCR-B
HSD
SSD
LQ Courier
LQ Roman
LQ Swiss
LQ Swiss Bold
LQ Orator
LQ Gothic
LQ Prestige
LQ OCR- A
LQ OCR- B
DRAFT
HSD
Draft mode
Select the draft mode.
HSD
SSD
-
Pitch
Select character pitch.
10 CPI
12 CPI
15 CPI
17.1 CPI
20 CPI
Proportional
Spacing
Select whether to use
proportional spacing or
not.
Yes
No
Style
Select either font style.
Normal
Italics
Size
Select the character
scale size.
Selects both double
width and double height
character or single width
and single height
characters.
Single
Double
Operating instructions > 42
GROUP
Symbol
Sets
ITEM
FUNCTION
SETS
ML5720/ML5721
ML5790/ML5791
Character Set
Select character code
table.
Set I
Set II
Standard (ML mode
only)
Line Graphics (ML
mode only)
Block Graphics (ML
mode only)
Set I
Set II
Language Set
Select a language
character set.
ASCII
French
German
British
Danish I
Swedish I
Italian
Spanish I
Japanese
Norwegian
Danish II
Spanish II
Latin American Dutch
TRS80
Swedish II
Swedish III
Swedish IV
Turkish
Swiss I
Swiss II
Publisher
ASCII
French
German
British
Danish I
Swedish I
Italian
Spanish I
Japanese
Norwegian
Danish II
Spanish II
Latin American
Dutch
Swedish II
Swedish III
Swedish IV
Turkish
Swiss I
Swiss II
Publisher
Zero Character
Select either print font
pattern to receive a zero
character located at 30H
in ANK code.
Slashed
Unslashed
Slashed
Unslashed
Operating instructions > 43
GROUP
Symbol
Sets cont.
ITEM
FUNCTION
SETS
ML5720/ML5721
ML5790/ML5791
USA
Canada French
Multilingual
Portugal
Norway
Turkey
Greek_437
Greek_869
Greek_928
Greek_437 CYPRUS
Polska Mazovia
Serbo Croatic I
Serbo Croatic II
ECMA-94
Hungarian CWI
Windows Greek
Windows East Europe
Windows Cyrillic
East Europe Latin II 852
Cyrillic I-855
Cyrillic II-866
Kamenicky (MJK)
ISO Latin 2
Hebrew NC (862)
Hebrew OC
Turkey_857
Latin 5 (Windows
Turkey)
Windows Hebrew
Ukrainian
Bulgarian
ISO Latin 6 (8859/
10)
Windows Baltic
Baltic_774
KBL-Lithuanian
Cyrillic Latvia
Roman-8
Icelandic-861
Multilingual 858
ISO 8859-15
Greek_737
Asmo 449+
Asmo 708
Arabic 864
Windows Arabic
POL1
Macedonian
BRASCII
Abicomp
Code Page
Select a code page.
USA
Canada French
Multilingual
Portugal
Norway
Turkey
Greek_437
Greek_869
Greek_928
Greek_437 CYPRUS
Polska Mazovia
Serbo Croatic I
Serbo Croatic II
ECMA-94
Hungarian CWI
Windows Greek
Windows East Europe
Windows Cyrillic
East Europe Latin II 852
Cyrillic I-855
Cyrillic II-866
Kamenicky(MJK)
ISO Latin 2
Hebrew NC (862)
Hebrew OC
Turkey_857
Latin 5 (Windows
Turkey)
Windows Hebrew
Ukrainian
Bulgarian
ISO Latin 6 (8859/
10)
Windows Baltic
Baltic_774
KBL-Lithuanian
Cyrillic Latvia
Roman-8
Icelandic-861
Multilingual 858
ISO 8859-15
Greek_737
POL1
Macedonian
BRASCII
Abicomp
Slashed Letter 0
Set whether to convert
slashed 0 located at 9BH
and 9DH in USA code
page or not.
Yes
No
Operating instructions > 44
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Rear Feed
(Push)
ML5790/ML5791
Line Spacing
Select line feed pitch.
6 LPI
8LPI
Form Tear-Off
When printer is idle (0.5,
1.0 or 2.0 sec), paper is
advanced from the
current print position to
the tear position. When
data is received, paper is
moved to its original
printing position.
Manual
0.5 sec
1.0 sec
2.0 sec
Skip Over
Perforation
Select whether to skip
over perforation or not.
(When a skip over
perforation command is
received, the received
command is given
priority.)
No
25.4 mm (1”)
Page Width
(Displayed only for
ML5721 and
ML5791)
Change to 8” to print on
narrow paper.
345.44 mm (13.6”)
203.2 mm (8”)
Page Length
Select the length of a
continuous form.
279.4 mm (11”)
296.3 mm (11 2/3”)
304.8 mm (12”)
355.6 mm (14”)
431.8 mm (17”)
76.2 mm (3”)
82.6 mm (3.25”)
84.7 mm (10/3”)
88.9 mm (3.5”)
93.1 mm (11/3”)
101.6 mm (4”)
127.0 mm (5”)
139.7 mm (5.5”)
152.4 mm (6”)
177.8 mm (7”)
203.2 mm (8”)
215.9 mm (8.5”)
Initial Position
Select the vertical print
position when printer is
turned on.
Print Position
Cut Position
Cut Position Adjust
Select an adjustment
value for the position to
cut the end of a
continuous form.
-20 ~ -1
0
+1 ~ +20
-30 ~ -1
0
+1 ~ +30
TOF Adjust
Select an adjustment
value for the reference
position in regard to the
TOF position of a
continuous form.
-20 ~ -1
0
+1 ~ +20
-30 ~ -1
0
+1 ~ +30
Operating instructions > 45
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Rear Feed
(Push)
cont.
Continuous Paper
Top of Form
Select an adjustment
value for the reference
position in regard to the
Top of Form of a
continuous form.
2.12 mm (1/12”)
4.23 mm (2/12”)
6.35 mm (3/12”)
8.47 mm (4/12”)
10.58 mm (5/12”)
12.70 mm (6/12”)
14.82 mm (7/12”)
16.93 mm (8/12”)
19.05 mm (9/12”)
21.17 mm (10/12”)
23.28 mm (11/12”)
25.40 mm (12/12”)
27.52 mm (13/12”)
User Top of Form
LF Revise
Adjust the line feed
amount.
-2
-1
0
+1
+2
Centering Position
Select to limit printhead
travel when printing
narrow columns.
Select Mode1 for
ML5720 and ML5790.
Default
Mode1
Mode2
Select Mode 1 or Mode 2
for ML5721.
Front
Feed
(Push)
Line Spacing
Select line feed pitch.
6 LPI
8LPI
Form Tear-Off
When printer is idle (0.5,
1.0 or 2.0 sec), paper is
advanced from the
current print position to
the tear position. When
data is received, paper is
moved to its original
printing position.
Manual
0.5 sec
1.0 sec
2.0 sec
Skip Over
Perforation
Select whether to skip
over perforation or not.
(When a skip over
perforation command is
received, the received
command is given
priority.)
No
25.4 mm (1”)
Page Width
(Displayed only for
ML5721 and
ML5791)
Change to 8” to print on
narrow paper.
345.44 mm (13.6”)
203.2 mm (8”)
Operating instructions > 46
ML5790/ML5791
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Front
Feed
(Push)
cont.
ML5790/ML5791
Page Length
Select the length of a
continuous form.
279.4 mm (11”)
296.3 mm (11 2/3”)
304.8 mm (12”)
355.6 mm (14”)
431.8 mm (17”)
76.2 mm (3”)
82.6 mm (3.25”)
84.7 mm (10/3”)
88.9 mm (3.5”)
93.1 mm (11/3”)
101.6 mm (4”)
127.0 mm (5”)
139.7 mm (5.5”)
152.4 mm (6”)
177.8 mm (7”)
203.2 mm (8”)
215.9 mm (8.5”)
Initial Position
Select the vertical print
position when printer is
turned on.
Print Position
Cut Position
Cut Position Adjust
Select an adjustment
value for the position to
cut the end of a
continuous form.
-20 ~ -1
0
+1 ~ +20
-30 ~ -1
0
+1 ~ +30
TOF Adjust
Select an adjustment
value for the reference
position in regard to the
TOF position of a
continuous form.
-20 ~ -1
0
+1 ~ +20
-30 ~ -1
0
+1 ~ +30
Continuous Paper
Top of Form
Select an adjustment
value for the reference
position in regard to the
Top of Form of a
continuous form.
2.12 mm (1/12”)
4.23 mm (2/12”)
6.35 mm (3/12”)
8.47 mm (4/12”)
10.58 mm (5/12”)
12.70 mm (6/12”)
14.82 mm (7/12”)
16.93 mm (8/12”)
19.05 mm (9/12”)
21.17 mm (10/12”)
23.28 mm (11/12”)
25.40 mm (12/12”)
27.52 mm (13/12”)
User Top of Form
LF Revise
Adjust the line feed
amount.
-2
-1
0
+1
+2
Centering Position
Select to limit printhead
travel when printing
narrow columns.
Select Mode1 for
ML5720 and ML5790.
Default
Mode 1
Mode 2
Select Mode 1 or Mode 2
for ML5721 and ML5791.
Operating instructions > 47
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Pull
Line Spacing
Select line feed pitch.
6 LPI
8 LPI
Skip Over
Perforation
Select whether to skip
over perforation or not.
(When a skip over
perforation command is
received, the received
command is given
priority.)
No
25.4 mm (1”)
Page width
(Displayed only for
ML5721/ML5791)
Change to 8” to print on
narrow paper.
345.44 mm (13.6”)
203.2 mm (8”)
Page Length
Select the length of a
continuous form.
279.4 mm (11”)
296.3 mm (11 2/3”)
304.8 mm (12”)
355.6 mm (14”)
431.8 mm (17”)
76.2 mm (3”)
82.6 mm (3.25”)
84.7 mm (10/3”)
88.9 mm (3.5”)
93.1 mm (11/3”)
101.6 mm (4”)
127.0 mm (5”)
139.7 mm (5.5”)
152.4 mm (6”)
177.8 mm (7”)
203.2 mm (8”)
215.9 mm (8.5”)
LF Revise
Adjust the line feed
amount.
-2
-1
0
+1
+2
Centering Position
Select to limit printhead
travel when printing
narrow columns.
Select Mode1 for
ML5720/ML5790.
Default
Mode 1
Mode 2
Select Mode 1 or Mode 2
for ML5721/ML5791.
Cut Sheet
Top
Line Spacing
Select line feed pitch.
6 LPI
8 LPI
Form Tear-Off
(Displayed when
connected to the
RPS)
When printer is idle (0.5,
1.0 or 2.0 sec), paper is
advanced from the
current print position to
the tear position. When
data is received, paper is
moved to its original
printing position.
Manual
0.5 sec
1.0 sec
2.0 sec
Page width
(Displayed only for
ML5721/ML5791)
Change to 8” to print on
narrow paper.
345.44 mm (13.6”)
203.2 mm (8”)
Operating instructions > 48
ML5790/ML5791
-14 ~ -1
0
+1 ~ +14
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Cut Sheet
Top cont.
Page Length
Select the page length of
cut sheet.
279.4 mm (11” in)
296.3 mm (11 2/3”)
304.8 mm (12”)
420.9 mm (16.57”)
355.6 mm (14”)
76.2 mm (3”)
82.6 mm (3.25”)
84.7 mm (10/3”)
88.9 mm (3.5”)
93.1 mm (11/3”)
101.6 mm (4”)
127.0 mm (5”)
139.7 mm (5.5”)
152.4 mm (6”)
177.8 mm (7”)
203.2 mm (8”)
215.9 mm (8.5”)
Initial Position
(Displayed when
connected to the
RPS)(ML5720/
ML5790)
Select the vertical print
position when printer is
turned on.
Print Position
Cut Position
Cut Position Adjust
(Displayed when
connected to the
RPS)(ML5720/
ML5790)
Select an adjustment
value for the position to
cut the end of a
continuous form.
-20 ~ -1
0
+1 ~ +20
Wait Time
Select the waiting time
between setting paper
on the tray and feeding
it while the printer is
waiting for paper to be
fed in cut sheet manual
feed mode.
Invalid
0.5 sec
1.0 sec
1.5 sec
2.0 sec
3.0 sec
Paper Length
Control
Control the page length
of cut sheet.
by MENU setting
by Actual Page
Length
Cut Sheet Auto
Eject Position
Select a printable area
at the bottom of cut
sheets of paper in cutpaper mode (the
character center
position.)
6.35 mm (3/12”)
12.70 mm (6/12”)
14.82 mm (7/12”)
Invalid
TOF Adjust
Select an adjustment
value for the reference
position in regard to the
TOF position of cut sheet
paper.
-20 ~ -1
0
+1 ~ +20
The position moves to
the rear of the form by
(+) and to the top of the
form by (-) in /1/144”
(ML5720/ML5721) and
1/180” (ML5790/
ML5791) increments.
Operating instructions > 49
ML5790/ML5791
-30 ~ -1
0
+1 ~ +30
by MENU setting
by Actual Page
Length
-30 ~ -1
0
+1 ~ +30
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Cut Sheet
Top cont.
Cut Sheet Top of
Form
Select the reference
position for the TOF
position when feeding
cut sheet. (Up to the
mid-section of
characters in the first
line.)
2.12 mm (1/12”)
4.23 mm (2/12”)
6.35 mm (3/12”)
8.47 mm (4/12”)
10.58 mm (5/12”)
12.70 mm (6/12”)
14.82 mm (7/12”)
16.93 mm (8/12”)
19.05 mm (9/12”)
21.17 mm (10/12”)
23.28 mm (11/12”)
25.40 mm (12/12”)
27.52 mm (13/12”)
User Top of Form
LF Revise
Adjust a line feed in the
cut sheet mode.
-14 ~ -1
0
+1 ~ +14
Centering Position
Select to limit printhead
travel when printing
narrow columns.
Select Mode1 for
ML5720.
Default
Mode 1
Mode 2
ML5790/ML5791
Select Mode 1 or Mode 2
for ML5721.
Cut Sheet
Front
Line Spacing
Select line feed pitch.
6 LPI
8 LPI
Page width
(Displayed only for
ML5721/ML5791)
Change to 8” to print on
narrow paper.
345.44 mm (13.6”)
203.2 mm (8”)
Page Length
Select the length of cut
sheet.
279.4 mm (11”)
296.3 mm (11 2/3”)
304.8 mm (12”)
355.6 mm (14”)
420.9 mm (16.57”)
76.2 mm (3”)
82.6 mm (3.25”)
84.7 mm (10/3”)
88.9 mm (3.5”)
93.1 mm (11/3”)
101.6 mm (4”)
127.0 mm (5”)
139.7 mm (5.5”)
152.4 mm (6”)
177.8 mm (7”)
203.2 mm (8”)
215.9 mm (8.5”)
Wait Time
Select the waiting time
between setting paper
on the tray and feeding
it while the printer is
waiting for paper to be
fed in cut sheet manual
feed mode.
Invalid
0.5 sec
1.0 sec
1.5 sec
2.0 sec
3.0 sec
Paper Length
Control
Control the page length
of cut sheet.
by MENU setting
by Actual Page
Length
Operating instructions > 50
by MENU setting
by Actual Page
Length
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Cut Sheet
Front
cont.
Cut Sheet Auto
Eject Position
Select a printable area
at the bottom of cut
sheet paper in cut sheet
mode (the character
centre position).
6.35 mm (3/12”)
12.70 mm (6/12”)
14.82 mm (7/12”)
Invalid
TOF Adjust
Select an adjustment
value for the reference
position in regard to the
TOF position of cut sheet
paper.
-20 ~ -1
0
+1 ~ +20
ML5790/ML5791
-30 ~ -1
0
+1 ~ +30
The position moves to
the rear of the form by
(+) and to the top of the
form by (-) in 1/144”
(ML5720/21) and 1/180”
(ML5790/91)
increments.
Cut Sheet Top of
Form
Select the reference
position for the TOF
position when feeding
cut sheet. (Up to the
mid-section of
characters in the first
line.)
2.12 mm (1/12”)
4.23 mm (2/12”)
6.35 mm (3/12”)
8.47 mm (4/12”)
10.58 mm (5/12”)
12.70 mm (6/12”)
14.82 mm (7/12”)
16.93 mm (8/12”)
19.05 mm (9/12”)
21.17 mm (10/12”)
23.28 mm (11/12”)
25.40 mm (12/12”)
27.52 mm (13/12”)
User Top of Form
LF Revise
Adjust a line feed
amount in the cut sheet
mode.
-14 ~ -1
0
+1 ~ +14
Centering Position
Select to limit printhead
travel when printing
narrow columns.
Select Mode1 for
ML5720/ML5790.
Default
Mode 1
Mode 2
Select Mode 1 or Mode 2
for ML5721/ML5791.
Set-up
Graphics
Select the printing
direction when doubleheight print data exists
in a line.
Uni-directional
Bi-directional
7 or 8 Bits
Graphics
(Displayed only for
ML Emulation)
Select to change
graphics settings.
7
8
Receive Buffer
Size
Select size of the
received buffer.
0K
1 Line
32 K
64 K
128 K
When “1 Line” is
selected, the receive
buffer size is set to 2 k
bytes.
Operating instructions > 51
-
GROUP
Set-up
cont.
ITEM
FUNCTION
SETS
ML5720/ML5721
ML5790/ML5791
-
Paper End
Detection
Select whether to detect
paper end or not.
Change to OFF to
override the sensor and
print closer to the
bottom of the page.
On
Off
Print Registration
1
Adjust the print starting
position on printing in
the reverse direction.
(The position moves to
the right or left in 1/720
in increments.)
-10 ~ -1
0
+10 ~ +1
Print Registration
2
Adjust the print starting
position on printing in
the reverse direction.
(The position moves to
the right or left in 1/720
in increments.)
-10 ~ -1
0
+10 ~ +1
Print Registration
3
Adjust the print starting
position on printing in
the reverse direction.
(The position moves to
the right or left in 1/720
in increments.)
-10 ~ -1
0
+10 ~ +1
Print Registration
4
Adjust the print starting
position on printing in
the reverse direction.
(The position moves to
the right or left in 1/720
in increments.)
-10 ~ -1
0
+10 ~ +1
7 or 8 Bits Data
Word
Select data word
lengths.
7
8
Operator Panel
Function
Select full or limited
operation.
Full Operation
Limited Operation
Reset Inhibit
Changing this to Yes
prevents a reset signal
from the computer from
resetting the printer to
its defaults.
No
Yes
Print Suppress
Effective
Select whether to enable
or disable a print
suppress setup
command.
No
Yes
Auto LF
Select whether to
perform auto LF
operation or not upon
receiving a CR code. If
your print out is
consistently double
spaced, select No, if it
overprints, select Yes.
No
Yes
Auto CR
(Displayed only for
IBM emulation)
Select Yes to add a
carriage return when a
Line Feed is received at
the end of a line.
No
Yes
Operating instructions > 52
-
GROUP
Set-up
cont.
ITEM
FUNCTION
SETS
ML5720/ML5721
ML5790/ML5791
-
Print DEL Code
(Displayed only for
ML Emulation)
Change the setting to
Yes to print the DEL code
(decimal 27) as a solid
box.
No
Yes
SI Select Pitch (10
CPI) (Displayed
only for IBM
emulation)
Select how to handle an
SI command received in
10 CPI mode.
17.1 CPI
15 CPI
SI Select Pitch (12
CPI) (Displayed
only for IBM
emulation)
Select how to handle an
SI command received in
12 CPI mode.
12 CPI
20 CPI
Time Out Print
Select valid or invalid.
Invalid
Valid
Auto Select
Determines whether or
not the printer will
automatically be
selected after you load
in paper. Select No if you
want to set the Top of
Form position.
Yes
No
Host Interface
Selects which interface
the printer uses to
receive printing
commands.
Auto Interface
Parallel
USB
Optional
I/F Time Out
Sets the length of time
before the interface
switches to idle status
when no printing
commands have been
received.
15 sec
30 sec
45 sec
1 min
2 min
3 min
4 min
5 min
ESC SI Pitch
(Displayed only for
IBM emulation)
Sets the character pitch
used when the ESC SI
command is received.
17.1 CPI
20 CPI
Select Language
Set
Changing the language
set replaces certain
standard symbols with
special characters used
in foreign languages.
Combined
Code Page Only
Print Style
Select the printer impact
mode.
Normal
High Speed
Quiet
High Copy
Select Quiet Mode
Select Quiet print mode.
Mode 1
Mode 2
Select High Copy
Mode
Select High Copy print
mode.
Mode 1
Mode 2
Mode 3
Mode 4
Reverse Feed
Control
Set reverse feed control.
TOF Stop
TOF Over
Operating instructions > 53
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Set-up
cont.
Parallel
I/F
Serial I/F
(Displayed
when
connected to
Serial
Interface)
ML5790/ML5791
Print Direction at
DH Mode
Select the print direction
at the double height
printed.
Uni-directional
Bi-directional
Sleep Mode
Set whether to enable or
disable sleep mode.
Enable
Disable
Sleep Time
Set idle time to enter
sleep mode.
5 min
10 min
15 min
30 min
60 min
Pin Control
Select whether to have
or not have print control
during line printing.
-
Standard
Special
Pin Control Select
Select the method to
print lines when Special
is selected in Pin Control
menu.
-
Mode1
Mode2
Paper End
Select when to detect
Paper End.
On-line
Off-line
FF Function
Set feeding operation
upon receiving an FF
code after cut paper is
fed.
Eject
Form Feed
Cut Sheet Park
Function
Select Valid to enable
paper feed out of the cut
sheet.
Invalid
Valid
Feed Up when
Menu Printing
Select Yes to move the
paper to the top cover to
see the MENU printing.
No
Yes
I-prime
Select whether to print
or clear buffer contents
upon initialisation by
receiving I-PRIME.
Invalid
Buffer Print
Buffer Clear
Auto Feed XT
(Displayed only for
EPSON emulation)
Select the validity of an
Auto Feed XT signal.
Valid
Invalid
Bi-direction
Set whether to return a
device ID or not in
accordance with
IEEE1284.
Enable
Disable
Parity
None: Absence of parity
bit
Odd: Odd parity
Even: Even parity
Ignore: Do not convert
the character to ox40 in
case of parity error.
None
Odd
Even
Ignore
Serial Data 7/8
Bits
Select Serial bit.
8 bit
7 bit
Protocol
Select an I/F Busy
control method.
Ready/Busy
X-On/X-OFF
Ready/Busy & X-ON/X-OFF
Operating instructions > 54
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
Diagnostic Test
Select to perform input/
output diagnosis of
RS-232C interface
signals.
No
Yes
Busy Line
Select to set the Busy
Line.
SSDSSD+
DTR
RTS
Baud Rate
Select to set the Baud
Rate.
9,600 bps
4,800 bps
2,400 bps
1,200 bps
600 bps
300 bps
19,200 bps
DSR Signal
Select the DSR Signal.
Valid
Invalid
DTR Signal
Select a method to
switch a DTR signal of a
serial interface.
Ready on Power Up
Ready on Select
Busy Time
Select the minimum
time between BUSY to
READY.
0.2 sec
1.0 sec
Stop Bit
Select the stop bit.
1 bit
2 bit
Receive error
Select the receive error.
Checked
Unchecked
CSF Bin 1
Line spacing
Select line feed pitch
(Displayed when
Single-bin
Cut-sheet
feeder is
installed)
6 LPI
8 LPI
Page Width
(Displayed only for
ML5721/ML5791)
Change to 8 inch to print
on letter size paper.
203.2 mm (8”)
345.44 mm (13.6”)
Page Length
Select the length of cut
sheet.
279.4 mm (11”)
296.3 mm (11 2/3”)
304.8 mm (12”)
355.6 mm (14”)
420.9 mm (16.57”)
76.2 mm (3”)
82.6 mm (3.25”)
84.7 mm (10/3”)
88.9 mm (3.5”)
93.1 mm (11/3”)
101.6 mm (4”)
127.0 mm (5”)
139.7 mm (5.5”)
152.4 mm (6”)
177.8 mm (7”)
203.2 mm (8”)
215.9 mm (8.5”)
Cut Sheet Auto
Eject Position
Select a printable area
at the bottom of cut
sheet paper in cut sheet
mode (the character
centre position).
6.35 mm (3/12 in)
12.7 mm (6/12 in)
14.82 mm (7/12 in)
Serial I/F
cont.
(Displayed
when
connected to
Serial
Interface)
Operating instructions > 55
ML5790/ML5791
GROUP
ITEM
FUNCTION
SETS
ML5720/ML5721
CSF Bin 1
cont.
TOF Adjust
(Displayed when
Single-bin
Cut-sheet
feeder is
installed)
Select an adjustment
value for the reference
position in regard to the
TOF position of cut sheet
paper.
-20 ~ -1
0
+1 ~ +20
The position moves to
the rear of the form by
(+) and to the top of the
form by (-) in 1/60 in
increments.
Cut Sheet Top Of
Form
Select the reference
position for the TOF
position when feeding
cut sheet. (Up to the
mid-section of
characters in the first
line.)
2.12 mm (1/12”)
4.23 mm (2/12”)
6.35 mm (3/12”)
8.47 mm (4/12”)
10.58 mm (5/12”)
12.70 mm (6/12”)
14.82 mm (7/12”)
16.93 mm (8/12”)
19.05 mm (9/12”)
21.17 mm (10/12”)
23.28 mm (11/12”)
25.40 mm (12/12”)
27.52 mm (13/12”)
User Top of Form
LF Revise
Adjust a line feed
amount in the cut sheet
mode.
-14 ~ -1
0
+1 ~ +14
Centering Position
Select to limit printhead
travel when printing
narrow columns.
Select Mode1 for
ML5720.
Default
Mode 1
Mode 2
Select Mode 1 or Mode 2
for ML5721.
Extension
Detect Sprocket
Hole
Select Enable when
loading continuous form
to detect sprocket hole,
and avoid printing on
the hole.
Enable
Disable
Right
Margin(Fanfold)
Select to set the blank
space (width) on the
right side of the
continuous form.
Right Margin Over
1 mm
3 mm
5.08 mm
10 mm
13 mm
15 mm
20 mm
25 mm
Right Margin (Cut
Sheet)
Select to set the blank
space (width) on the
right side of the cutsheet paper.
Right Margin
1 mm
2 mm
3 mm
4 mm
5 mm
6 mm
Operating instructions > 56
ML5790/ML5791
INITIALISING MENU SETTINGS
To restore the menu settings to their initial values, carry out the steps below.
NOTE
The values adjusted by the Adjustment menus are not initialised by the
following procedure.
1.
Set the Power Switch to OFF.
2.
Press and hold down the SEL and LF/FF buttons together and then set the Power
Switch to ON.
The SEL LED will flash.
3.
Press and hold down the TEAR button and then press the SEL button again.
ADJUSTING TOF POSITION
Use the following procedure to set TOF to accord with the reference position (6.35 mm
(0.25 in)). The reference position refers to the first line of the paper i.e. the position to
which the printer feeds the paper when automatically loading the paper.
NOTE
Adjusting of TOF can be done in cut sheet mode or continuous forms mode.
1.
Print out the menu settings of the printer as in “Confirming current settings” on
page 40 and confirm that the TOF (in cut sheet mode or continuous forms mode) is
23.28 mm (11/12 in).
2.
Remove the cut sheet paper by pressing LOAD/EJECT button or retract the
continuous form as described in “Removing continuous forms” on page 27.
3.
Set the Paper Type lever to the required paper type.
4.
Place the cut sheet paper on the Paper Tray (front or top) and adjust the paper
guides to suit the paper width.
When continuous forms are used, place the paper on the Pin Tractor.
5.
To load the cut sheet paper, insert the cut sheet in the Top of Form position, and the
paper is automatically loaded.
To load the continuous form, press LOAD/EJECT button.
NOTE
TOF default is set at 23.28 mm (11/12 in).
6.
Align the paper with the first print line position as follows:
ML5720/ML5721:
> To feed the paper forward by a small amount (1/144 in), press the LOAD/EJECT
and SEL buttons together.
> To feed the paper backward by a small amount (1/144 in), press the LOAD/EJECT
and LF/FF buttons together.
ML5790/ML5791:
> To feed the paper forward by a small amount (1/180 in), press the LOAD/EJECT
and SEL buttons together.
Operating instructions > 57
> To feed the paper backward by a small amount (1/180 in), press the LOAD/EJECT
and LF/FF buttons together.
NOTE
> Press the TEAR button to move the continuous form down before
adjusting the TOF.
± 20/144 in
For ML5790/ML5791: the specified correction range is ± 30/180 in.
> For ML5720/ML5721: the specified correction range is
>
7.
When the paper is positioned at the required TOF, release the buttons in Step 6
above.
To save this position as the TOF, press and hold the SEL button and then press the
LF/FF button.
Operating instructions > 58
TROUBLESHOOTING
CLEARING PAPER JAMS
CUT SHEET PAPER JAMMED IN PRINTER
WARNING!
Do not carry out any operations inside the printer with the Power
Switch set to ON.
1.
Set the Power Switch to OFF.
2.
Open the Top Cover.
3.
Set the Paper Thickness lever to position 10.
WARNING!
The Print Head may be hot after printing. Allow it to cool before
touching it.
4.
Remove the ribbon cartridge. See “Changing a ribbon cartridge” on page 68.
5.
Move the print head away from the paper.
Troubleshooting > 59
6.
Rotate the platen knob in the relevant direction and pull the cut sheet out from the
top of the printer.
7.
If a paper fragment remains inside the printer:
(a)
use tweezers to grip and extract it or
(b)
insert a triple folded sheet from the Paper Tray and turn the platen knob to pass
the folded sheet through and push out the paper fragment.
8.
When the paper jams are cleared, replace the ribbon cartridge, reset the paper
thickness lever and close the printer top cover.
9.
Set the Power Switch to ON.
NOTE
Use the above procedure to clear paper jam when using cut-sheet front feed.
CONTINUOUS FORMS JAMMED IN PRINTER
WARNING!
Do not carry out any operations inside the printer with the Power
Switch set to ON.
1.
Set the Power Switch to OFF.
2.
Open the Top Cover.
3.
Tear off any unprinted continuous forms.
Troubleshooting > 60
4.
Remove the top Paper Tray by holding the tray by the tabs on both sides and pulling
it up from the printer.
5.
Raise each Pin Tractor cover and remove the continuous forms from the Pin
Tractors.
6.
Rotate the platen knob and remove the forms from the front of the printer.
7.
If a form fragment remains inside the printer, place two or three forms in a stack on
the Pin Tractors and turn the platen knob to push the fragment out of the printer.
8.
When the paper jams are cleared, lower the top Paper Tray and slide it towards the
front of the printer until the marks align.
9.
Close the Top Cover.
Troubleshooting > 61
10.
Set the Power Switch to ON.
NOTE
Use the above procedure to clear paper jam when using continuous formfront push.
RESPONDING TO ALARM CONDITIONS
Use the following table for guidance on how to respond to indicated alarm conditions.
INDICATOR
ALARM MEANINGS AND ACTIONS
SEL
ALARM
OFF
ON
Paper has run out. Add paper and press the SEL button.
OFF
Flashing
The Paper Type lever is wrongly set for the type of paper in
use. Press the SEL button and set the Paper Type lever to the
correct position.
OFF
Flashing
Problem with cut sheet feeding. Remove the cut sheet.
Flashing
ON
Print data is received but printing does not start because no
paper is being fed. Insert paper.
Flashing
Flashing
Printing cannot be resumed at this stage. Turn the power OFF,
verify that the carriage moves properly, then turn the power
ON again.
If the problem is still there after you turn the power ON again,
contact your dealer.
RESPONDING TO GENERAL PROBLEMS
Use the following table to help you to identify symptoms with possible causes and take
suggested remedial actions.
PROBLEM
CAUSE
ACTION
The power cable is not
properly connected.
Check the power cable is
properly connected at both
power outlet and printer.
Power outlet problem or
power outage.
Plug another appliance into
this outlet to check if it
works.
The printer driver is not
installed properly.
Re-install the printer driver
correctly.
The printer has just stopped
printing.
Press the SEL button.
There is no paper in the
printer.
Load paper.
Interface cable is
disconnected.
Reconnect the interface
cable.
Wrong interface cable has
been used.
Use correct interface cable.
The ribbon cartridge has not
been installed.
Install the ribbon cartridge.
No power
No power
No printing takes place
SEL indicator is unlit.
SEL indicator is illuminated
but no printing takes place.
The print head is moving but
no printing takes place.
Troubleshooting > 62
PROBLEM
CAUSE
ACTION
The start position may
change after the printer is
powered on.
When the printer is powered
ON, switch from off-line mode
to on-line mode by pressing
the SEL button. Reset the
start position. You must set
the Power Switch to OFF
before you change the start
position.
When the print head
overheats, the printer
automatically starts
unidirectional split printing.
When the print head
temperature drops
sufficiently, the printer will
return to its original
operation.
There is contamination on the
carriage shaft.
Clean any paper dust and
contamination from the
carriage with a dry cloth.
The Paper Thickness lever
position does not match the
paper.
Correct the Paper Thickness
lever setting.
The printer is set to print at
high speed.
Set the speed to normal.
The ribbon has reached its
end of life.
Replace the ribbon by a new
one.
The ribbon cartridge is not
installed correctly.
Reinstall the ribbon cartridge
correctly.
The ribbon has been wound
incorrectly.
Replace the ribbon cartridge
by a new one.
The ribbon is not transferring
properly.
Replace the ribbon cartridge
by a new one.
Broken wire pins.
Contact your dealer.
Print position offset
The horizontal printing
position is offset.
Printing slows down
Print direction changes
suddenly to unidirectional.
PE warning
The print carriage does not
operate.
Print blurring
The characters are too pale to
display properly on the paper.
A line of print is missing.
The printout differs from the screen display.
Printout of completely
different characters or
symbols.
Incorrect print setup for the
user application.
Reselect print setup for the
applications according to
priority.
The application control codes
for the previous print
operation are still enabled.
Initialise the printer.
The input application control
signal is not correct.
Print in hex dump mode and
verify the data content. Make
corrections in the application.
The interface cable is not
properly connected.
Reconnect the cable correctly.
Troubleshooting > 63
PROBLEM
CAUSE
ACTION
Too high or too low TOF
(where printing starts).
The TOF is not correctly
selected.
Initialise the printer.
Select correct TOF for cut
sheet and continuous forms.
Select the first-line print
position and adjust the paper
top position.
Reselect the margin correctly
in the application.
Too large or small left and/or
right margins.
The left or right margin is not
correctly selected.
Incorrect positions of the
Paper Guide or Pin Tractors.
Select and adjust the position
again depending on the paper
type.
Reselect the left and right
margins correctly in the
application.
When continuous forms are
used, the content of a single
form is printed on two forms.
The paper length selected in
the application does not
match the physical paper
length.
Match the paper length
selected in the application
with the physical paper
length in use.
When cut sheets are used,
the content of a single sheet
is printed on two sheets.
The paper setting selected in
the application does not
match the physical paper
size.
Match the paper setting
selected in the application
with the physical paper in
use.
It does not match the lines
per page as the printer
automatically detected.
Leave enough top and bottom
margin in the application.
The content of a single line is
printed in two lines.
The left and/or right margins
are not correctly selected.
Reselect the left and right
margins correctly in the
application.
When continuous forms are
used, several blank lines
appear in the printout.
Tear-off perforation spacing is
selected.
Cancel tear-off perforation
spacing.
Broken and uneven vertical
lines.
This may happen in
bidirectional printing.
Use Print Registration in the
adjustment mode to adjust.
Too large or small line
spacing.
Line spacing is not selected
correctly.
Reselect line spacing
correctly in the application.
Blanks appear in graphic
printout.
This is a paper feed error,
which is especially notable in
printing regular characters.
This is not a failure.
Blanks or deformed
characters appear in double
height type or other extended
types.
This is a paper feed error due
to line feeding in printing a
single character.
This is not a failure.
Correct the cut sheet LF
adjustment.
Split print
Troubleshooting > 64
Use the printer's built-in fonts
when you print important
documents or bills.
PROBLEM
CAUSE
ACTION
Sheets are located off the
paper guide.
Load sheets with their left
edges against the paper
guide.
Sheets are not loaded to the
end.
Load sheets to the end.
Continuous forms instead of
cut sheets are fed.
The printer is in the
continuous forms mode.
Eject the continuous forms
and select cut sheet mode for
the printer.
Paper distortion.
Sheets are not loaded to the
end, or they are not inserted
straight.
Load sheets to the end.
Paper with wrinkles, folds or
other defects.
Change paper.
Paper not specified for the
printer.
Use paper types specified for
the printer.
The LF/FF button is pressed.
Press the LOAD/EJECT
button.
Improper cut sheet feed
No paper feed.
Unable to eject.
Improper continuous forms feed.
No line feed, and no paper
feed.
Paper is off the Pin Tractors.
Reload paper correctly.
The adjust lever position does
not match the paper type.
Set the adjust lever to the
correct position.
Paper distortion or jam.
Forms are loaded with their
left holes out of line with the
right ones.
Load forms with their left
holes in line with the right
ones.
Inadequate distance between
the left and right Pin Tractors,
making for loose paper.
Relocate the Pin Tractors to
tighten the paper.
Skew paper feeding.
Move the paper to make it
straight.
Paper movement is blocked.
Remove the blockage.
Paper source is too far from
the printer.
Move the paper source nearer
to the printer.
Paper not specified for the
printer.
Use paper types specified for
this printer.
Several blank lines appear in
the printout.
Skip over perforation spacing
is selected.
Cancel the skip over
perforation spacing.
The selected skip over
perforation spacing does not
match the physical tear-off
perforation positions.
The paper length selected in
the application does not
match the physical paper
length.
Match the paper length
selected in the application
with the physical paper
length in use.
Select the paper length in
number of lines in the
application.
Abnormal switchover between cut sheet and continuous forms modes.
No cut sheet feed.
The printer is in continuous
forms mode.
Set the Paper Type lever to
cut sheet mode.
No continuous forms feed.
The printer is in cut sheet
mode.
Set the Paper Type lever to
continuous forms mode.
Troubleshooting > 65
PROBLEM
CAUSE
ACTION
Paper feed operations for
both cut sheets and
continuous forms are
actuated.
The cut sheet is not ejected.
Eject the cut sheet.
Troubleshooting > 66
CLEANING YOUR PRINTER
To keep your printer in good operating condition, you are advised to clean it regularly.
WARNING!
Set the printer Power Switch to OFF and disconnect the power
cable from the printer before cleaning the printer.
PRINTER EXTERIOR
CAUTION!
Keep the Top Cover closed to avoid the possibility of detergent
entering the printer
Clean the exterior of the printer as required, but at least every six months or 300 hours of
operation, whichever comes first.
>
Moisten a piece of cotton cloth with diluted neutral detergent and carefully wipe the
printer exterior.
PRINTER INTERIOR
WARNING!
As the print head becomes hot during printing, allow it to cool
before carrying out any cleaning inside the printer.
Do not use any flammable solvents for cleaning the printer to avoid
any risk of fire or electric shock.
Clean the interior of the printer every 6 months or 300 hours of operation, whichever comes
first.
Using a soft cloth, cotton swabs and a vacuum cleaner, clean the interior of the printer as
follows:
WHERE TO CLEAN
WHAT TO CLEAN
The carriage and the area around it
Clean and remove paper
waste, dirt, dust and ribbon
shreds.
The paper travel surface
CAUTION!
When you clean the interior of the printer with a vacuum cleaner,
do not attempt to clean any parts smaller than the suction nozzle.
Do not clean any interior working parts with the suction nozzle to
avoid possible damage to the printer.
Cleaning your printer > 67
CONSUMABLES AND ACCESSORIES
CONSUMABLES
When the printed image becomes faint or incomplete, replace the ribbon cartridge.
CHANGING A RIBBON CARTRIDGE
CAUTION!
Only use genuine Original consumables to ensure the best quality
and performance from your hardware. Non Original products may
damage your printer’s performance and invalidate your warranty.
WARNING!
Do not change the ribbon cartridge with the Power Switch set to
ON.
1.
Set the Power Switch to OFF.
2.
Open the Top Cover and set the paper Thickness lever to position 10.
1
2
WARNING!
The print head and area around it may be hot after printing. Allow
it to cool down before touching it.
3.
Move the carriage to the center (2) for ribbon replacement position.
Consumables and accessories > 68
4.
Holding the sides of the ribbon guide, slope it up and out to remove it from the
carriage.
5.
Holding the ribbon cartridge close to both ends, slope it up and out until it unlocks
then remove it along the direction indicated by the arrows.
6.
Dispose of the cartridge in accordance with your local guidelines.
Consumables and accessories > 69
7.
Remove the new ribbon cartridge from its wrapping and note the position of the
Ribbon Guide (1), Knob (2) and Pin (3).
2
1
3
8.
In the direction indicated by the arrows, insert the pins at both ends of the ribbon
cartridge (1) into the U grooves (2) in the printer until the ribbon cartridge is fully
locked.
2
1
2
NOTE
It may be easier to mount the ribbon cartridge in place if you align it with the
topside of the grooves. Also, a slightly loose ribbon may make it easier to
mount the ribbon cartridge.
Consumables and accessories > 70
9.
Holding the sides of the ribbon guide slope it downward until the ribbon guide comes
in line with the slot of the print head.
NOTE
Ensure that the guide is pushed to the end of the print head.
10.
Move the print head horizontally to ensure that the ribbon is properly installed.
11.
Turn the knob (1) clockwise (in the direction of the arrow) to wind up the ribbon.
1
CAUTION!
>
Do not turn the knob anticlockwise as the ribbon might jam.
>
Make sure that the ribbon is not twisted or damaged when it goes
through the gap between the Print Head and the ribbon guide.
Consumables and accessories > 71
12.
Set the Paper Thickness lever to match the paper being used. (See “Setting the
Paper Thickness lever” on page 33.)
13.
Close the Top Cover.
14.
Set the printer Power Switch to ON.
CONSUMABLE ORDER INFORMATION
ITEM
MODEL
LIFE
Ribbon cartridge (Black)
ML5720/ML5790
8 million characters
44173405
ML5721/ML5791
13 million characters
44173406
Consumables and accessories > 72
ORDER NO.
INSTALLING OPTIONS
INSTALLING THE CUT-SHEET FEEDER
To install the optional cut-sheet feeder (CSF) carry out for the following:
1.
Ensure that the printer is turned OFF.
2.
Ensure that the Paper Type Lever is set to Cut-Sheet.
RPS
REAR
FRONT
PULL
3.
Open the top access cover, adjust the Paper Thickness Lever to suit the paper. See
“Setting the Paper Thickness lever” on page 33.
4.
Remove the top tray by holding the tabs (1) on both sides and pulling it up away
from the printer.
1
Installing Options > 73
5.
Remove the Pull-up Guide assembly (1) by disengaging the latches (2) on both
sides, pulling it forwards (3) and then pulling it up (4).
2
1
4
3
6.
Guide the edge of Cut-sheet feeder on both sides onto the platen and then press
down to lock it in place.
7.
Plug in the CSF connector into the CSF port in the rear of printer.
Installing Options > 74
8.
Set the printer Power switch to ON.
NOTE
The Guide Assembly packed with CSF cannot be used on ML5720/ML5721.
INSTALLING THE ROLL PAPER STAND (ML5720/ML5790)
To install the optional Roll Paper Stand (RPS), carry out the following:
1.
Ensure that the printer is turned OFF.
2.
Ensure that the Paper Type Lever is set to RPS.
RPS
REAR
FRONT
PULL
3.
Remove the Pull-up Guide assembly support.
Installing Options > 75
4.
Remove the top tray by holding the tray by the tabs on both sides and pulling it up
from the printer.
5.
Install the separator (1). Insert the RPS (2) into the separators insertion slots (3)
and push it backward (4).
2
4
1
3
6.
Plug in the RPS connector into the port in the rear of the printer.
Installing Options > 76
INSTALLING THE NETWORK AND SERIAL INTERFACE CARD
To install any of the above options, follow the detailed installation sheet that accompanies
the option.
OPTION ORDER NUMBERS
OPTION
MODEL
ORDER NUMBER
Pull Tractor
ML5720/ML5790
44753902
ML5721/ML5791
44754002
ML5720/ML5790
44497402
ML5721/ML5791
44497502
Roll Paper Stand
ML5720/ML5790
YA4053-1057G015
Tractor Unit
ML5720/ML5790
44454902
ML5721/ML5791
44455002
ML5720/ML5721
44455102
Cut-sheet Feeder Single Bin
RS-232C Serial Interface
ML5790/ML5791
LAN7120E3 100BASE-TX/
10BASE-T Network Interface
ML5720/ML5721
ML5790/ML5791
Installing Options > 77
44455302
SPECIFICATIONS
MODEL
MODEL NUMBER
ML5720
D22540B
ML5721
D22550B
ML5790
D22560B
ML5791
D22570B
ITEM
SPECIFICATION
Print method
Impact dot matrix
Print head
ML5720/ML5721
18 pin, 0.3mm (0.012 in) diameter
ML5790/ML5791
24 pin, 0.2mm (0.0079 in) diameter
Dimensions
ML5720/ML5790
438mm(W) x 375mm(D) x 191mm(H)
ML5721/ML5791
592mm(W) x 375mm(D) x 191mm(H)
(with platen knob, pull-up guide assembly support and
paper separator)
Weight
ML5720/ML5790
7.5 kg
ML5721/ML5791
10 kg
Power rating
Voltage
Frequency
220 – 240V ± 10%
50/60 Hz ± 2%
Power consumption
(without options attached)
Operation
ML5720/ML5721
ML5790/ML5791
Standby mode
Powersave mode
Typ. 59W (ISO/IEC10561/Letter/Draft Range 1)
Typ. 88W (ISO/IEC10561/Letter/Draft Range 1)
15 W
2.0W
Environmental conditions
Operating
5°C – 35°C, 20% - 80% RH (Testing condition for print
precision: 15°C – 30°C, 40% – 70%RH)
10°C - 50°C, 5% – 95% RH
Storage
When the printer is stored, it should be in its original
packaging, with no moisture formation.
Noise level
The acoustic noise of this product is less than 57dB (A)
(ML5720/ML5721) and 57dB (A) (ML5790/ML5791) as
measured in accordance with EN ISO 7779.
Specifications > 78
INDEX
A
alarm indications ................... 62
aligning perforations ............. 26
C
changing paper paths
continuous forms to cut
sheet .............................. 30
cut sheet to continuous
forms .............................. 30
cleaning
exterior ............................. 67
interior .............................. 67
continuous forms
front feed .......................... 22
rear feed ........................... 19
controlling the printer using
DIPUS ................................. 17
D
DIPUS
button setup utility ........... 17
menu setup utility ............ 17
status monitor .................. 17
TOF setup utility ............... 17
dismounting
front pin tractor ................ 25
rear pin tractor ................. 21
drivers ................................... 16
E
ejecting paper
continuous forms .............. 26
cut sheet ........................... 30
emulations ............................ 16
F
fault finding ........................... 62
optional
loading cut-sheet
feeder ............................. 31
loading the roll paper
stand .............................. 32
roll paper stand ................ 31
P
paper jams
continuous forms .............. 60
cut sheet .......................... 59
printer
location ............................. 11
parts ................................... 9
test print........................... 13
printing files .......................... 17
R
ribbon
changing ........................... 68
ordering ............................ 72
S
setting paper thickness ......... 33
specifications ........................ 78
switching OFF........................ 12
switching ON ......................... 11
T
test page ............................... 16
TOF
saving ............................... 58
setting .............................. 57
U
user guide
list ...................................... 7
printing ............................... 8
I
installing options
cut-sheet feeder ............... 73
network interface card...... 77
roll paper stand ................ 75
serial interface card .......... 77
interface
parallel .............................. 15
USB................................... 15
L
loading paper
continuous forms .............. 18
cut sheet ........................... 28
M
menu settings
confirming ........................ 40
initialising ......................... 57
list ..................................... 42
O
operating instructions ........... 36
button functions ............... 39
indicators .......................... 37
option order numbers ........... 77
Index > 79
OKI PRINTING SOLUTIONS CONTACT DETAILS
Oki Systems (UK) Limited
550 Dundee Road
Slough Trading Estate
Slough, SL1 4LE
Tel:44 (0) 1753 819819
Fax:44 (0) 1753 819899
http://www.oki.co.uk
Oki Systems Ireland Limited
The Square Industrial Complex
Tallaght, Dublin 24, Ireland
Tel:+353 1 4049590
Fax:+353 1 4049591
http://www.oki.ie
OKI Systems - Northern Ireland
40 Sydenham Park
Belfast, BT4 1PW
Tel:+44 (0)28 90 20 1110
http://www.oki.ie
Technical Support for all Ireland:
Tel:+353 1 4049570
Fax:+353 1 4049555
E-mail: [email protected]
Oki Printing Solutions contact details > 80
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