Manuals / Oki / Computer Equipment / Printer

Oki 490 manual Emulations co-resident, Print Speed, Characters per Line cpl, Graphics Resolution

Models: 490

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Emulations (co-resident)

Emulations (co-resident)

•Epson LQ

•IBM Proprinter X24e / XL24e

•IBM X24e AGM / XL24e AGM

Print Speed

Mode	Pitch	Speed
High Speed Draft (HSD)	10 cpi*	420 cps†

Utility	10 cpi	315 cps
	12 cpi	378 cps
	15 cpi	472 cps
	17.1 cpi	269 cps
	20 cpi	315 cps

Letter Quality (LQ)	10 cpi	105 cps
	12 cpi	126 cps
	15 cpi	157 cps
	17.1 cpi	180 cps
	20 cpi	210 cps

* Characters per inch

† Characters per second

Characters per Line (cpl)

Setting	ML490	ML491
10 cpi	80 cpl	136 cpl

12 cpi	96 cpl	163 cpl

15 cpi	120 cpl	204 cpl

17.1 cpi	137 cpl	233 cpl

20 cpi	160 cpl	272 cpl

Graphics Resolution

360 x 360 dpi maximum (24-dot, hex density)

Paper Thickness: Tractor Feed

Rear Feed: 0.014" (0.36 mm) maximum Bottom Feed: 0.017" (0.44 mm) max.

Requires optional push or pull tractor.

76Microline 490/491 User’s Guide

Image 76

Oki 490 Emulations co-resident, Print Speed, Characters per Line cpl, Graphics Resolution, Paper Thickness Tractor Feed

Contents

User’s Guide 59348401Mailing Address e-Mail Address pubs@okidata.comSafety These are some of the things to look for Contents Chapter 3 Using Your PrinterChapter 1 Introduction Chapter 2 Helpful HintsChapter 5 Maintenance Chapter 6 TroubleshootingAppendix A Parts & Accessories Appendix C SpecificationsPrinter Features Chapter 1 IntroductionOki Data on the Internet High Speed Draft Mode 420 cps 10 cpi Utility Mode 269 to 472 cpsNote This feature is normally turned off Chapter 2 Helpful HintsSaving Money Forms Tear-Off Saving TimeControlling Access to the Printer Operation TipsTop of Form TOF Turning the Platen KnobParts Identification Rear Feed Continuous Forms Chapter 3 Using Your PrinterNote For rear feed, the paper lever must be forward Parts Identification Top Feed Single Sheets Paper Guides Sheet Guide Paper Lever On-Off Switch Platen KnobUsing Your Printer Control Panel Acoustic Cover openTop of Form TOF Top of Form TOF and Forms Tear-OffDetermining if Forms Tear-Off is Off or On Forms Tear-Off OFF Default Setting Setting Top of Form TOFThe printhead moves back to the left margin The SEL light goes off and the red alarm light comes on Forms Tear-Off Set to ONThe paper moves to the current TOF Setting Top of Form TOFResetting Top of Form to the Factory Default Temporarily Changing the Top of Form PositionPotential Problems with Software Packages Forms Tear-Off FeatureDo not use Forms Tear-Off with labels or multipart forms Changing the Forms Tear-Off Setting Note The default setting for Forms Tear-Off is OFFPaper Park Manual Forms Tear OffContinuous Forms toSingle Sheets Changing Paper PathsUsing Your Printer Single Sheets toContinuous Forms 3 Swing the wire feed guide over onto the pull-up roller1 Press FF/LOAD to remove the single-sheet paper 2 Lower the sheet guide into the continuous-forms positionMake sure the printer is turned off before you open the access cover Printhead GapPrint Quality LQ Letter Quality LQ light onUtility UTILITY light on HSD High Speed Draft LQ and UTILITY lights both onTypefaces LQ Mode CourierGothic OratorCharacter Pitch Printer Reset Epson LQ - factory settingEmulations Changing EmulationsChapter 4 Menu Mode Menu Mode KeysResetting the Menu to the Factory Defaults Printing the Menu SettingsEntering and Exiting Menu Mode Printing the Current Menu SettingsChanging the Menu Settings Settings Defaults are set in bold italic Menu Settings TableGroup Menu Settings Table Continued 13.6Settings Defaults are set in bold italic Group500 ms, 1 sec, 2 sec Menu Settings Table ContinuedSettings Defaults are set in bold italic GroupMenu Settings Table Continued Settings Defaults are set in bold italicGroup 32 Microline 490/491 User’s GuideReady on Power Up, Ready on Select Invalid, ValidMenu Settings Table Continued Settings Defaults are set in bold italicMenu Settings Table Continued Settings Defaults are set in bold italicGroup 34 Microline 490/491 User’s GuideExplanations of Menu Items Auto CR, Default =NoAuto 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 Replacing the Ribbon Cartridge Chapter 5 Maintenance1 Make sure the printer is turned OFF The printhead may be HOT Do not remove the ribbon shield 1 from the ribbonLoading Paper Rear FeedMaintenance Loading Rear Feed Paper from the Back of the Printer3 Grasp the sheet guide. Lift it slightly, then slide it back Careful44 Microline 490/491 User’s Guide 5 From the back of the printer, locate the tractors Note If the paper is too loose or too tight it can cause jams 8 Place continuous forms paper on the first two pins of either tractor13 Press FF/LOAD Loading Rear Feed Paper from the Front of the Printer 48 Microline 490/491 User’s GuideML490ML491 Note If the paper is too loose or too tight it can cause jams 9 Reinstall the sheet guide50 Microline 490/491 User’s Guide Maintenance 11 Press FF/LOADTop 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 JamsMake sure the printer is turned off before you open the access cover Rear-Feed, Repeating Paper Jams Make sure the printer is turned off before you open the access cover4 Remove any torn pieces of paper Single-Sheet Paper Jams 3 Open the access cover 1 and remove the pull-up roller assembly5 Reinstall the pull-up roller assembly and close the access cover MaintenanceMake sure the printer is turned off before you open the access cover Cleaning the Housing58 Microline 490/491 User’s Guide Chapter 6 Troubleshooting Note Settings in your software application will normallyoverride any settings in your printer driver General InformationProblems / Solutions ProblemSolution Nothing happens when I turn on the printerThe printer does not print when the computer sends data SolutionsProblem ProblemInk smears on the paper when I print narrow columns Ive installed a new ribbon and the printing is smeared and streakedProblem SolutionThe ALARM light is flashing The ALARM light is on and the Character Pitch 10 light is flashingThe ALARM light is on and the Character Pitch 15 light is flashing There are dots missing in my printoutsThe printer needs paper. The ALARM is not on. I can’t load paper Continuous-form paper sticks to the sheet guideProblem SolutionAppendix A Parts & Accessories Purchasing Parts & AccessoriesReplacement Parts Power CordAccess Cover Pull-Up Roller AssemblyAccessories OptionPull Tractor, Top-Mount 70030501Epson LQ Commands Appendix B Printer Control CodesEpson 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 Appendix C Specifications Note Specifications are subject to change without noticePrint Method PrintheadGraphics Resolution Emulations co-residentPrint Speed Characters per Line cplResident Fonts Bar CodesResident Typefaces SpecificationsPaper Specifications ML490 Single Cut SheetsSingle-part, continuous forms Carbonless continuous forms orig. + 4 copiesPaper Specifications ML491 Physical Specifications Note Height dimensions do not include the acoustic coverEnvironmental Requirements Electrical RequirementsLocation Appendix D InstallationUnpack 2 Remove the printhead shipping restraint 3 Remove the shipping restraint from the pull-up roller assembly82 Microline 490/491 User’s Guide Installation Install the Ribbon Cartridge 1 Make sure the printer is turned OFFThe printhead may be HOT Do not remove the ribbon shield 1 from the ribbonPower Connection Computer ConnectionsParallel LPT IEEE 1 Make sure both the printer and the computer are OFFLoading Paper USB Specification 1.1 Compliant86 Microline 490/491 User’s Guide Testing the Printer Font Sample TestRolling ASCII Test The printer prints the rolling ASCII text page after pageHexadecimal Dump Mode Printer DriversEmulations Loading the OKI Driver Using a Compatible DriverThe Windows Add New Hardware Wizard window displays Index 92 Microline 490/491 User’s Guide Index 94 Microline 490/491 User’s Guide