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Oki 490 manual Maintenance, Replacing the Ribbon Cartridge, Make sure the printer is turned OFF

Models: 490

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Chapter 5: Maintenance

Chapter 5: Maintenance

Replacing the Ribbon Cartridge

Important!

Make sure you have the correct replacement ribbon for the your printer. The wrong ribbon will not print when installed in your printer.

Ribbon Cartridge Handling

•Leave unused ribbon cartridges in their packages until needed.

•Careful; the ribbon ink may cause permanent stains.

•Ribbon ink on skin or clothing can usually be removed with soap and water.

1Make sure the printer is turned OFF.

2Open the access cover and center the printhead.

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Oki 490 manual Maintenance, Replacing the Ribbon Cartridge, Make sure the printer is turned OFF

Contents

59348401 User’s Guidee-Mail Address pubs@okidata.com Mailing AddressSafety These are some of the things to look for Chapter 3 Using Your Printer ContentsChapter 1 Introduction Chapter 2 Helpful HintsChapter 6 Troubleshooting Chapter 5 MaintenanceAppendix A Parts & Accessories Appendix C SpecificationsChapter 1 Introduction Printer FeaturesOki Data on the Internet High Speed Draft Mode 420 cps 10 cpi Utility Mode 269 to 472 cpsChapter 2 Helpful Hints Note This feature is normally turned offSaving Money Forms Tear-Off Saving TimeOperation Tips Controlling Access to the PrinterTop of Form TOF Turning the Platen KnobNote For rear feed, the paper lever must be forward Chapter 3 Using Your PrinterParts Identification Rear Feed Continuous Forms Paper Guides Sheet Guide Paper Lever On-Off Switch Platen Knob Parts Identification Top Feed Single SheetsUsing Your Printer Control Panel Acoustic Cover openTop of Form TOF and Forms Tear-Off Top of Form TOFDetermining if Forms Tear-Off is Off or On The printhead moves back to the left margin Setting Top of Form TOFForms Tear-Off OFF Default Setting Forms Tear-Off Set to ON The SEL light goes off and the red alarm light comes onThe paper moves to the current TOF Setting Top of Form TOFTemporarily Changing the Top of Form Position Resetting Top of Form to the Factory DefaultDo not use Forms Tear-Off with labels or multipart forms Forms Tear-Off FeaturePotential Problems with Software Packages Note The default setting for Forms Tear-Off is OFF Changing the Forms Tear-Off SettingPaper Park Manual Forms Tear OffUsing Your Printer Changing Paper PathsContinuous Forms toSingle Sheets 3 Swing the wire feed guide over onto the pull-up roller Single Sheets toContinuous Forms1 Press FF/LOAD to remove the single-sheet paper 2 Lower the sheet guide into the continuous-forms positionPrinthead Gap Make sure the printer is turned off before you open the access coverLQ Letter Quality LQ light on Print QualityUtility UTILITY light on HSD High Speed Draft LQ and UTILITY lights both onCourier Typefaces LQ ModeGothic OratorCharacter Pitch Epson LQ - factory setting Printer ResetEmulations Changing EmulationsMenu Mode Keys Chapter 4 Menu ModePrinting the Menu Settings Resetting the Menu to the Factory DefaultsEntering and Exiting Menu Mode Printing the Current Menu SettingsChanging the Menu Settings Group Menu Settings TableSettings Defaults are set in bold italic 13.6 Menu Settings Table ContinuedSettings Defaults are set in bold italic GroupMenu Settings Table Continued 500 ms, 1 sec, 2 secSettings Defaults are set in bold italic GroupSettings Defaults are set in bold italic Menu Settings Table ContinuedGroup 32 Microline 490/491 User’s GuideInvalid, Valid Ready on Power Up, Ready on SelectMenu Settings Table Continued Settings Defaults are set in bold italicSettings Defaults are set in bold italic Menu Settings Table ContinuedGroup 34 Microline 490/491 User’s GuideAuto CR, Default =No Explanations of Menu ItemsAuto LF, Default = No Auto Feed XT, Default = InvalidSSD -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 1 Make sure the printer is turned OFF Chapter 5 MaintenanceReplacing the Ribbon Cartridge Do not remove the ribbon shield 1 from the ribbon The printhead may be HOTRear Feed Loading PaperMaintenance Loading Rear Feed Paper from the Back of the Printer44 Microline 490/491 User’s Guide Careful3 Grasp the sheet guide. Lift it slightly, then slide it back 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 jams13 Press FF/LOAD 48 Microline 490/491 User’s Guide Loading Rear Feed Paper from the Front of the PrinterML490ML491 50 Microline 490/491 User’s Guide 9 Reinstall the sheet guideNote If the paper is too loose or too tight it can cause jams 11 Press FF/LOAD MaintenanceTop 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 Make sure the printer is turned off before you open the access cover Clearing Paper JamsRear-Feed Paper Jams Make sure the printer is turned off before you open the access cover Rear-Feed, Repeating Paper Jams4 Remove any torn pieces of paper 3 Open the access cover 1 and remove the pull-up roller assembly Single-Sheet Paper Jams5 Reinstall the pull-up roller assembly and close the access cover Maintenance58 Microline 490/491 User’s Guide Cleaning the HousingMake sure the printer is turned off before you open the access cover Note Settings in your software application will normally Chapter 6 Troubleshootingoverride any settings in your printer driver General InformationProblem Problems / SolutionsSolution Nothing happens when I turn on the printerSolutions The printer does not print when the computer sends dataProblem ProblemIve installed a new ribbon and the printing is smeared and streaked Ink smears on the paper when I print narrow columnsProblem SolutionThe ALARM light is on and the Character Pitch 10 light is flashing The ALARM light is flashingThe ALARM light is on and the Character Pitch 15 light is flashing There are dots missing in my printoutsContinuous-form paper sticks to the sheet guide The printer needs paper. The ALARM is not on. I can’t load paperProblem SolutionPurchasing Parts & Accessories Appendix A Parts & AccessoriesPower Cord Replacement PartsAccess Cover Pull-Up Roller AssemblyOption AccessoriesPull Tractor, Top-Mount 70030501Appendix B Printer Control Codes Epson LQ CommandsEpson 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 SpecificationsPrint Method PrintheadEmulations co-resident Graphics ResolutionPrint Speed Characters per Line cplBar Codes Resident FontsResident Typefaces SpecificationsSingle Cut Sheets Paper Specifications ML490Single-part, continuous forms Carbonless continuous forms orig. + 4 copiesPaper Specifications ML491 Note Height dimensions do not include the acoustic cover Physical SpecificationsEnvironmental Requirements Electrical RequirementsUnpack Appendix D InstallationLocation 82 Microline 490/491 User’s Guide 3 Remove the shipping restraint from the pull-up roller assembly2 Remove the printhead shipping restraint Installation 1 Make sure the printer is turned OFF Install the Ribbon CartridgeThe printhead may be HOT Do not remove the ribbon shield 1 from the ribbonComputer Connections Power ConnectionParallel LPT IEEE 1 Make sure both the printer and the computer are OFF86 Microline 490/491 User’s Guide USB Specification 1.1 CompliantLoading Paper Font Sample Test Testing the PrinterThe printer prints the rolling ASCII text page after page Rolling ASCII TestEmulations Printer DriversHexadecimal Dump Mode The Windows Add New Hardware Wizard window displays Using a Compatible DriverLoading the OKI Driver Index 92 Microline 490/491 User’s Guide Index 94 Microline 490/491 User’s Guide