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Oki
490
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User’s Guide
Models:
490
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Troubleshooting
Specs
Install
DEFAULT, Mode 1, Mode
Maintenance
Problems / Solutions
Printer Reset
Appendix a Parts & Accessories
Epson LQ Commands
Setting Top of Form TOF
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User’s Guide
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Contents
User’s Guide
Mailing Address
Safety
Microline 490/491 User’s Guide
Contents
Troubleshooting
Introduction
Printer Features
Oki Data on the Internet
Saving Money Forms Tear-Off
Helpful Hints
Saving Time
Internet Support
Operation Tips
Controlling Access to the Printer
Top of Form TOF
Turning the Platen Knob
Parts Identification Rear Feed Continuous Forms
Using Your Printer
Parts Identification Top Feed Single Sheets
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
Forms Tear-Off Set to on
Temporarily Changing the Top of Form Position
Resetting Top of Form to the Factory Default
Potential Problems with Software Packages
Forms Tear-Off Feature
Paper Park
Changing the Forms Tear-Off Setting
Manual Forms Tear Off
Continuous Forms toSingle Sheets
Changing Paper Paths
Single Sheets toContinuous Forms
Printhead Gap
Print Quality
Typefaces LQ Mode
Character Pitch
Emulations
Printer Reset
Changing Emulations
Menu Mode Keys
Menu Mode
Resetting the Menu to the Factory Defaults
Entering and Exiting Menu Mode
Printing the Menu Settings
Changing the Menu Settings
Group Settings Defaults are set in bold italic
Menu Settings Table
13.6
500 ms, 1 sec, 2 sec
DEFAULT, Mode 1, Mode
Invalid, Valid
Menu Settings Table
Explanations of Menu Items
Use this to switch character sets to IBM Set
Selects the printer command set emulation you want to engage
Sets the signal on pin 18 to +5 volts or open
Choose the quality and typeface of printing
Change to Double for double width and height printing
Replacing the Ribbon Cartridge
Maintenance
Printhead may be HOT
Rear Feed
Loading Paper
Careful
Open the tractor covers
Microline 490/491 User’s Guide
Maintenance
Loading Rear Feed Paper from the Front of the Printer
ML490ML491
Microline 490/491 User’s Guide
Maintenance
Top Feed Single Sheets
Maintenance
Rear-Feed Paper Jams
Clearing Paper Jams
Rear-Feed, Repeating Paper Jams
Microline 490/491 User’s Guide
Single-Sheet Paper Jams
Cleaning the Housing
General Information
Troubleshooting
Solution
Problems / Solutions
Solutions
Ink smears on the paper when I print narrow columns
There are dots missing in my printouts
Printer needs paper. The Alarm is not on. I can’t load paper
Purchasing Parts & Accessories
Appendix a Parts & Accessories
Part Number
Replacement Parts
Option Part Number
Accessories
Appendix B Printer Control Codes
Epson LQ Commands
DEL
Enabled On
DC3
Carriage Return Character Pitch, Select 10 cpi
ESC % H
IBM Commands
ESC Q $
Appendix C Specifications
Emulations co-resident
Graphics Resolution
Print Speed
Characters per Line cpl
Bar Codes
Resident Fonts
Resident Typefaces
Paper Specifications ML490
Paper Specifications ML491
Environmental Requirements
Physical Specifications
Electrical Requirements
Location
Appendix D Installation
Unpack
Microline 490/491 User’s Guide
Installation
Install the Ribbon Cartridge
Computer Connections
Power Connection
Parallel LPT Ieee
USB Specification 1.1 Compliant
Font Sample Test
Testing the Printer
Rolling Ascii Test
Printer Drivers
Hexadecimal Dump Mode
Loading the OKI Driver
Using a Compatible Driver
Index
IBM
Index
Tear
Top
Page
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Contents