Oki ML5520, ML5521 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 Centring 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.

If it is loose, secure it.

If it is missing, find it and install it.

TROUBLESHOOTING > 65

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Contents ML5520/21 Preface Contents Index Oki contact details Page Introduction Features / TipsForms Tear-Off Paper ParkTurning the Platen Knob Top of Form TOFControlling Access to the Printer Printer Drivers Installing the DriverEmulations Printer DriversInterfaces General Using a Compatible DriverIBM Proprinter Epson FXPrinter’s USB port Connecting the USB CablePrinter Drivers Components TOP Feed Single Sheets Using Your PrinterComponents Rear Feed Continuous Forms TOP of Form TOF To use the Tear key Forms TEAR-OFFTo print the Menu Forms Tear-Off set to OFF default Setting TOP of Form TOFForms Tear-Off set to on SEL light goes off and the red alarm light comes onTemporarily Changing the TOP of Form Forms TEAR-OFF FeaturePotential Issues with Software Packages Manual Forms TEAR-OFF Changing the Forms TEAR-OFF SettingChanging Paper Paths Paper ParkContinuous Forms to Single Sheets Never park labelsSingle Sheets to Continuous Forms Press FF/LOAD Printhead GAP Setting MediaPrint Quality Utility UTL-the defaultHigh Speed Draft HSD Super Speed Draft SSDMicroline Emulation Character PitchEpson and IBM Emulations Changing Emulations Printer ResetEmulations Menu Mode Keys Menu ModeResetting the Menu to the Factory Defaults Entering and Exiting Menu ModePrinting the Menu Settings Printing ALL Menu SettingsGroup Settings Menu Settings13.6 17.1 cpi, 20 cpi Invalid, Valid Explanation of Menu Items Bi-direction, Default = Enable Baud Rate, Default = 9600 bpsBottom Margin, Default = Valid Busy Line, Default = SSDCharacter Set, Default = Standard Character Set, Default = IBM SetCode Page, Default = USA CSF Bin Select, Default = BinDTR Signal, Default = Ready On Power Up DSR Signal, Default = ValidEmulation Mode, Default = IBM PPR ESC SI Pitch, Default = 17 cpiLine Spacing, Default = 6 lpi Language Set, Default = AsciiOperator Panel Function, Default = Full Operation Length, Default = 11-2/3 or 1/2Power Save Time, Default = 5 min Paper Out Override, Default = NoPower Saving, Default = Enable Print Mode, Default = UtilityPrint Suppress Effective, Default = Yes Print Registration, Default =Proportional Spacing, Default = No Protocol, Default = Ready/BusySI Select Pitch 12 cpi, Default = 20 cpi SI Select Pitch 10 cpi, Default = 17.1 cpiSize, Default = Single Skip Over Perforation, Default = NoReplacing the Ribbon Cartridge MaintenanceIf ribbon should contact the skin Printhead may be HOTIf ribbon should contact the eyes Loading Rear Feed Paper from the Back of the Printer Loading PaperRear Feed Maintenance 5520 5521 If the paper is too loose, or too tight, it can cause jams Maintenance Loading Rear Feed Paper from the Front of the Printer 10 9.516 If the paper is too loose or too tight it can cause jams Reinstall the sheet feeder Maintenance TOP Feed Single Sheets Rear Feed Jams Clearing Paper JamsMaintenance Misaligned Paper Rear FEED, Repeating Paper JamsDefective Paper Maintenance Maintenance Single Sheet Paper Jams Cleaning the Housing Maintenance Problem TroubleshootingSolution General InformationSolutions 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 ML5520 ML5521 Printer Control Codes IBM Proprinter III CommandsESC % G Epson FX Commands DC3 OKI Microline Standard Commands ESC Y OFF Escz Specification SpecificationsUPC A, UPC E Top only Paper SpecificationsML5520 Unpacking Setting UP Your PrinterLocation Setting UP Your Printer Setting UP Your Printer Ribbon Cartridge Handling Installing the Ribbon CartridgePage Power Connection Parallel LPT, Ieee USB, Specification 1.1 CompliantComputer Connections Loading Paper Testing the PrinterFont Sample Test Setting UP Your Printer Hexadecimal Dump Mode Buffer IndexLength Time Out Oki Systems Ireland Limited Oki Systems UK LimitedOki Data Corporation Oki Hong Kong LimitedML5520/21