HP ML5590/91 manual Ink smears on the paper when I print narrow columns

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Problem

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

Solutions

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

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

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

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

Problem

Ink smears on the paper when I print narrow columns.

Solution

This may be caused by excessive printhead travel from the centering position. Enter the Menu and set the Centering Position to MODE 1. See “Using Your Printer, Menu Mode.”

For the wide-carriage printer, if MODE 1 doesn't work, try setting the Centering Position to MODE 2.

Problem

I've installed a new ribbon and the printing is smeared and streaked.

Solution

The ribbon shield (1) is either loose or missing.

1

Remove the ribbon cartridge and check the ribbon shield.

lIf it is loose, secure it.

lIf it is missing, find it and install it.

TROUBLESHOOTING > 67

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Contents ML5590/91 Preface Contents Index Oki contact details Page Forms Tear-Off Features / TipsUtility Mode 315 to 472.5 cps IntroductionTurning the Platen Knob Top of Form TOFControlling Access to the Printer Printer Drivers Installing the DriverPrinter Drivers EmulationsIBM Proprinter Using a Compatible DriverInterfaces General Epson LQPrinter’s USB port Connecting the USB CablePrinter Drivers Components Rear Feed Continuous Forms Using Your PrinterComponents TOP Feed Single Sheets TOP of Form TOF To print the Menu Forms TEAR-OFFTo use the Tear key Forms Tear-Off set to OFF default Setting TOP of Form TOFForms Tear-Off set to on Temporarily Changing the TOP of Form Forms TEAR-OFF FeaturePotential Issues with Software Packages Manual Forms TEAR-OFF Changing the Forms TEAR-OFF SettingNever park labels Paper ParkChanging Paper Paths Continuous Forms to Single SheetsSingle Sheets to Continuous Forms Press FF/LOAD Printhead GAP Setting MediaHigh Speed Draft HSD Print QualityLetter Quality LQ light on Utility Utility light onCharacter Pitch Emulations Printer ResetChanging Emulations Using Your Printer Menu Mode Keys Menu ModePrinting ALL Menu Settings Entering and Exiting Menu ModeResetting the Menu to the Factory Defaults Printing the Menu SettingsGroup Settings Menu SettingsSwedish III, Swedish IV, Turkish Setting Invalid, Valid Explanation of Menu Items Centering Position, Default = Default Bottom Margin, Default = ValidBusy Line, Default = SSD Busy Time Default = 200msCSF Type, Default = Wide Character Set, Default = IBM SetCode Page, Default = USA CSF Bin Select, Default = BinGraphics, Default = Uni-directional DTR Signal, Default = Ready On Power UpEmulation Mode, Default = Epson LQ Form Tear-Off, Default = OffLength, Default = Language Set, Default = AsciiLine Spacing, Default = 6 lpi Operator Panel Function, Default = Full OperationPower Save Time, Default = 5 min Paper Out Override, Default = NoPin 18, Default = +5V Pitch, Default = 10 cpiReceive Buffer Size, Default = 64K Print Suppress Effective, Default = YesProportional Spacing, Default = No Protocol, Default = Ready/BusyStyle, Default = Normal SI Select Pitch 12 cpi, Default = 20 cpiSize, Default = Single Skip Over Perforation, Default = NoReplacing the Ribbon Cartridge MaintenanceRibbon Cartridge Handling If ribbon should contact the eyes Printhead may be HOTIf ribbon should contact the skin Rear Feed Loading PaperLoading Rear Feed Paper from the Back of the Printer Careful 5590 5591 Close the right tractor cover Maintenance Loading Rear Feed Paper from the Front of the Printer Maintenance Pull up on the lock levers to release them If the paper is too loose or too tight it can cause jams Reinstall the sheet feeder Maintenance TOP Feed Single Sheets Maintenance Rear Feed Jams Clearing Paper JamsFragments of Paper in the Paper Path Rear FEED, Repeating Paper JamsDefective Paper Misaligned PaperMaintenance Maintenance Single Sheet Paper Jams Cleaning the Housing Maintenance General Information TroubleshootingProblem SolutionSolutions Ink smears on the paper when I print narrow columns There are dots missing in my printouts Continuous form paper sticks to the sheet guide Purchasing Parts & Accessories Parts and AccessoriesOption Part number ML5590 ML5591 Printer Control Codes Epson LQ CommandsDC3 ESC S Proprinter X24e / XL24e and IBM X24 AGM / XL24e AGM IBM CommandsESC Q $ Specification SpecificationsSpecification Top only Paper SpecificationsML5590 Location Setting UP Your PrinterUnpacking Setting UP Your Printer Setting UP Your Printer Installing the Ribbon Cartridge Page Make sure both the printer and the computer are OFF Power ConnectionComputer Connections USB, Specification 1.1 CompliantParallel LPT, Ieee Loading Paper Testing the PrinterSetting UP Your Printer Setting UP Your Printer Hexadecimal Dump Mode Buffer IndexLimited Operation Time Out Oki Hong Kong Limited Oki Systems UK LimitedOki Systems Ireland Limited Oki Data CorporationML5590/91