Oki 490 manual Troubleshooting

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Chapter 4: Menu Mode	26
Menu Mode Keys	26
Entering and Exiting Menu Mode	27
Resetting the Menu to the Factory Defaults	27
Printing the Menu Settings	27
Changing the Menu Settings	28
Menu Settings Table	29
Explanations of Menu Items	35
Chapter 5: Maintenance	41
Replacing the Ribbon Cartridge	41
Loading Paper	43
Rear Feed	43
Top Feed (Single Sheets)	52
Clearing Paper Jams	54
Rear-Feed Paper Jams	54
Rear-Feed, Repeating Paper Jams	55
Single-Sheet Paper Jams	57
Cleaning the Housing	58
Chapter 6: Troubleshooting	59
General Information	59
Problems / Solutions	60
Appendix A: Parts & Accessories	65
Purchasing Parts & Accessories	65
Replacement Parts	66
Accessories	67

Appendix B: Printer Control Codes	68
Epson LQ Commands	68
IBM Proprinter X24e / XL24e and IBM X24e AGM / XL24e
AGM Commands	72
Appendix C: Specifications	75
Appendix D: Installation	81
Location	81
Unpack	81
Install the Ribbon Cartridge	84
Power Connection	85
Computer Connections	85
Parallel (LPT): IEEE 1284	85
USB: Specification 1.1 Compliant	86
Loading Paper	86
Testing the Printer	87
Font Sample Test	87
Rolling ASCII Test	88
Hexadecimal Dump Mode	89
Emulations	89
Printer Drivers	89
Loading the OKI Driver	90
Using a Compatible Driver	90
Index	91

6Microline 490/491 User’s Guide

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Contents User’s Guide Mailing Address Safety Microline 490/491 User’s Guide Contents Troubleshooting Printer Features IntroductionOki Data on the Internet Saving Time Helpful HintsSaving Money Forms Tear-Off Internet SupportTop of Form TOF Controlling Access to the PrinterOperation Tips Turning the Platen KnobUsing Your Printer Parts Identification Rear Feed Continuous FormsParts Identification Top Feed Single Sheets Top of Form TOF Top of Form TOF and Forms Tear-OffDetermining if Forms Tear-Off is Off or On Setting Top of Form TOF Forms Tear-Off OFF Default SettingForms Tear-Off Set to on Resetting Top of Form to the Factory Default Temporarily Changing the Top of Form PositionForms Tear-Off Feature Potential Problems with Software PackagesChanging the Forms Tear-Off Setting Paper ParkManual Forms Tear Off Changing Paper Paths Continuous Forms toSingle SheetsSingle Sheets toContinuous Forms Printhead Gap Print Quality Typefaces LQ Mode Character Pitch Printer Reset EmulationsChanging Emulations Menu Mode Menu Mode KeysEntering and Exiting Menu Mode Resetting the Menu to the Factory DefaultsPrinting the Menu Settings Changing the Menu Settings Menu Settings Table Group Settings Defaults are set in bold italic13.6 500 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 Maintenance Replacing the Ribbon CartridgePrinthead may be HOT Loading Paper Rear FeedCareful 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 Clearing Paper Jams Rear-Feed Paper JamsRear-Feed, Repeating Paper Jams Microline 490/491 User’s Guide Single-Sheet Paper Jams Cleaning the Housing Troubleshooting General InformationProblems / Solutions SolutionSolutions 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 Appendix a Parts & Accessories Purchasing Parts & AccessoriesReplacement Parts Part NumberAccessories Option Part NumberEpson LQ Commands Appendix B Printer Control CodesDEL Enabled On DC3 Carriage Return Character Pitch, Select 10 cpi IBM Commands ESC % HESC Q $ Appendix C Specifications Print Speed Graphics ResolutionEmulations co-resident Characters per Line cplResident Fonts Bar CodesResident Typefaces Paper Specifications ML490 Paper Specifications ML491 Physical Specifications Environmental RequirementsElectrical Requirements Appendix D Installation LocationUnpack Microline 490/491 User’s Guide Installation Install the Ribbon Cartridge Power Connection Computer ConnectionsParallel LPT Ieee USB Specification 1.1 Compliant Testing the Printer Font Sample TestRolling Ascii Test Hexadecimal Dump Mode Printer DriversUsing a Compatible Driver Loading the OKI DriverIndex IBM Index Tear