Oki 490 manual Solutions

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Problem

The printer does not print when the computer sends data.

Solutions

1Is the SEL light on? If not, press the SEL key.

2Check that the interface cable is securely connected to both the printer and the computer.

3If you have the optional serial interface board installed, check to be sure that it is firmly seated in the printer.

Problem

I'm getting strange symbols, incorrect fonts, etc., when I try to print a document.

Solutions

1Check to be sure that the printer driver you have selected in your software matches the printer emulation.

•Press SHIFT and SEL keys, then press GROUP key.

•This will print a line showing the emulation you have selected.

2If you have embedded any printer commands in your software, check to be sure that you entered them correctly.

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Contents User’s Guide Mailing Address Safety Microline 490/491 User’s Guide Contents Troubleshooting Introduction Printer FeaturesOki Data on the Internet Saving Money Forms Tear-Off Helpful HintsSaving Time Internet SupportOperation Tips Controlling Access to the PrinterTop of Form TOF Turning the Platen KnobParts Identification Rear Feed Continuous Forms Using Your PrinterParts Identification Top Feed Single Sheets Top of Form TOF and Forms Tear-Off Top of Form TOFDetermining if Forms Tear-Off is Off or On Forms Tear-Off OFF Default Setting Setting Top of Form TOFForms Tear-Off Set to on Temporarily Changing the Top of Form Position Resetting Top of Form to the Factory DefaultPotential Problems with Software Packages Forms Tear-Off FeaturePaper Park Changing the Forms Tear-Off SettingManual Forms Tear Off Continuous Forms toSingle Sheets Changing Paper PathsSingle Sheets toContinuous Forms Printhead Gap Print Quality Typefaces LQ Mode Character Pitch Emulations Printer ResetChanging Emulations Menu Mode Keys Menu ModeResetting the Menu to the Factory Defaults Entering and Exiting Menu ModePrinting the Menu Settings Changing the Menu Settings Group Settings Defaults are set in bold italic Menu Settings Table13.6 500 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 MaintenancePrinthead may be HOT Rear Feed Loading PaperCareful 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 JamsRear-Feed, Repeating Paper Jams Microline 490/491 User’s Guide Single-Sheet Paper Jams Cleaning the Housing General Information TroubleshootingSolution Problems / SolutionsSolutions 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 & AccessoriesPart Number Replacement PartsOption Part Number AccessoriesAppendix B Printer Control Codes Epson LQ CommandsDEL Enabled On DC3 Carriage Return Character Pitch, Select 10 cpi ESC % H IBM CommandsESC Q $ Appendix C Specifications Emulations co-resident Graphics ResolutionPrint Speed Characters per Line cplBar Codes Resident FontsResident Typefaces Paper Specifications ML490 Paper Specifications ML491 Environmental Requirements Physical SpecificationsElectrical Requirements Location Appendix D InstallationUnpack Microline 490/491 User’s Guide Installation Install the Ribbon Cartridge Computer Connections Power ConnectionParallel LPT Ieee USB Specification 1.1 Compliant Font Sample Test Testing the PrinterRolling Ascii Test Printer Drivers Hexadecimal Dump ModeLoading the OKI Driver Using a Compatible DriverIndex IBM Index Tear