59348401
User’s Guide
e-Mail Address pubs@okidata.com
Mailing Address
Safety
These are some of the things to look for
Chapter 3 Using Your Printer
Contents
Chapter 1 Introduction
Chapter 2 Helpful Hints
Chapter 6 Troubleshooting
Chapter 5 Maintenance
Appendix A Parts & Accessories
Appendix C Specifications
Chapter 1 Introduction
Printer Features
Oki Data on the Internet
High Speed Draft Mode 420 cps 10 cpi Utility Mode 269 to 472 cps
Chapter 2 Helpful Hints
Note This feature is normally turned off
Saving Money Forms Tear-Off
Saving Time
Operation Tips
Controlling Access to the Printer
Top of Form TOF
Turning the Platen Knob
Parts Identification Rear Feed Continuous Forms
Chapter 3 Using Your Printer
Note For rear feed, the paper lever must be forward
Paper Guides Sheet Guide Paper Lever On-Off Switch Platen Knob
Parts Identification Top Feed Single Sheets
Using Your Printer
Control Panel Acoustic Cover open
Top of Form TOF and Forms Tear-Off
Top of Form TOF
Determining if Forms Tear-Off is Off or On
Forms Tear-Off OFF Default Setting
Setting Top of Form TOF
The printhead moves back to the left margin
Forms Tear-Off Set to ON
The SEL light goes off and the red alarm light comes on
The paper moves to the current TOF
Setting Top of Form TOF
Temporarily Changing the Top of Form Position
Resetting Top of Form to the Factory Default
Potential Problems with Software Packages
Forms Tear-Off Feature
Do not use Forms Tear-Off with labels or multipart forms
Note The default setting for Forms Tear-Off is OFF
Changing the Forms Tear-Off Setting
Paper Park
Manual Forms Tear Off
Continuous Forms toSingle Sheets
Changing Paper Paths
Using Your Printer
3 Swing the wire feed guide over onto the pull-up roller
Single Sheets toContinuous Forms
1 Press FF/LOAD to remove the single-sheet paper
2 Lower the sheet guide into the continuous-forms position
Printhead Gap
Make sure the printer is turned off before you open the access cover
LQ Letter Quality LQ light on
Print Quality
Utility UTILITY light on
HSD High Speed Draft LQ and UTILITY lights both on
Courier
Typefaces LQ Mode
Gothic
Orator
Character Pitch
Epson LQ - factory setting
Printer Reset
Emulations
Changing Emulations
Menu Mode Keys
Chapter 4 Menu Mode
Printing the Menu Settings
Resetting the Menu to the Factory Defaults
Entering and Exiting Menu Mode
Printing the Current Menu Settings
Changing the Menu Settings
Settings Defaults are set in bold italic
Menu Settings Table
Group
13.6
Menu Settings Table Continued
Settings Defaults are set in bold italic
Group
Menu Settings Table Continued
500 ms, 1 sec, 2 sec
Settings Defaults are set in bold italic
Group
Settings Defaults are set in bold italic
Menu Settings Table Continued
Group
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Invalid, Valid
Ready on Power Up, Ready on Select
Menu Settings Table Continued
Settings Defaults are set in bold italic
Settings Defaults are set in bold italic
Menu Settings Table Continued
Group
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Auto CR, Default =No
Explanations of Menu Items
Auto LF, Default = No
Auto Feed XT, Default = Invalid
SSD -9V, select SSD SSD +9V, select SSD+ DTR -9V, select DTR
Selects the printer command set emulation you want to engage
Wide carriage model only. Change to 13.6 to print on wide paper
Choose the quality and typeface of printing
Change to Double for double width and height printing
Replacing the Ribbon Cartridge
Chapter 5 Maintenance
1 Make sure the printer is turned OFF
Do not remove the ribbon shield 1 from the ribbon
The printhead may be HOT
Rear Feed
Loading Paper
Maintenance
Loading Rear Feed Paper from the Back of the Printer
3 Grasp the sheet guide. Lift it slightly, then slide it back
Careful
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5 From the back of the printer, locate the tractors
8 Place continuous forms paper on the first two pins of either tractor
Note If the paper is too loose or too tight it can cause jams
13 Press FF/LOAD
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Loading Rear Feed Paper from the Front of the Printer
ML490ML491
Note If the paper is too loose or too tight it can cause jams
9 Reinstall the sheet guide
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11 Press FF/LOAD
Maintenance
Top Feed Single Sheets
If the paper does not feed in, remove it. Check the paper lever position. Make sure the ALARM light is on if it is flashing, hold the SHIFT key and press the CHARACTER PITCH/RESET key. Reload the sheet of paper
Rear-Feed Paper Jams
Clearing Paper Jams
Make sure the printer is turned off before you open the access cover
Make sure the printer is turned off before you open the access cover
Rear-Feed, Repeating Paper Jams
4 Remove any torn pieces of paper
3 Open the access cover 1 and remove the pull-up roller assembly
Single-Sheet Paper Jams
5 Reinstall the pull-up roller assembly and close the access cover
Maintenance
Make sure the printer is turned off before you open the access cover
Cleaning the Housing
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Note Settings in your software application will normally
Chapter 6 Troubleshooting
override any settings in your printer driver
General Information
Problem
Problems / Solutions
Solution
Nothing happens when I turn on the printer
Solutions
The printer does not print when the computer sends data
Problem
Problem
Ive installed a new ribbon and the printing is smeared and streaked
Ink smears on the paper when I print narrow columns
Problem
Solution
The ALARM light is on and the Character Pitch 10 light is flashing
The ALARM light is flashing
The ALARM light is on and the Character Pitch 15 light is flashing
There are dots missing in my printouts
Continuous-form paper sticks to the sheet guide
The printer needs paper. The ALARM is not on. I can’t load paper
Problem
Solution
Purchasing Parts & Accessories
Appendix A Parts & Accessories
Power Cord
Replacement Parts
Access Cover
Pull-Up Roller Assembly
Option
Accessories
Pull Tractor, Top-Mount
70030501
Appendix B Printer Control Codes
Epson LQ Commands
Epson LQ Commands Continued
Epson LQ Commands Continued
Epson LQ Commands Continued
IBM Proprinter X24e / XL24e and IBM X24e AGM / XL24e AGM Commands
IBM Commands continued
IBM Commands Continued
Note Specifications are subject to change without notice
Appendix C Specifications
Print Method
Printhead
Emulations co-resident
Graphics Resolution
Print Speed
Characters per Line cpl
Bar Codes
Resident Fonts
Resident Typefaces
Specifications
Single Cut Sheets
Paper Specifications ML490
Single-part, continuous forms
Carbonless continuous forms orig. + 4 copies
Paper Specifications ML491
Note Height dimensions do not include the acoustic cover
Physical Specifications
Environmental Requirements
Electrical Requirements
Location
Appendix D Installation
Unpack
2 Remove the printhead shipping restraint
3 Remove the shipping restraint from the pull-up roller assembly
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Installation
1 Make sure the printer is turned OFF
Install the Ribbon Cartridge
The printhead may be HOT
Do not remove the ribbon shield 1 from the ribbon
Computer Connections
Power Connection
Parallel LPT IEEE
1 Make sure both the printer and the computer are OFF
Loading Paper
USB Specification 1.1 Compliant
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Font Sample Test
Testing the Printer
The printer prints the rolling ASCII text page after page
Rolling ASCII Test
Hexadecimal Dump Mode
Printer Drivers
Emulations
Loading the OKI Driver
Using a Compatible Driver
The Windows Add New Hardware Wizard window displays
Index
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Index
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