ALFA 20DX manual Pull the side panel out and remove it from the printer

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4. Push the OPEN button, then open the top cover.

5.Remove and save the two large screws on the right side, which hold the side panel in place.

Remove screws

6. Pull the side panel out and remove it from the printer.

7.Remove and save the two screws on the left of the metal plate covering the internal board, then pull the plate out about an inch and lift it out.

Remove screws

8Install the SIMMs:

a.Locate the three SIMM sockets on the board. Always install SIMMs in the sockets from left to right.

SIMM Sockets

b.Insert the gold metallic contact edge of the SIMM into the socket at about a 45 ° angle, with the notched corner of the SIMM at the bottom. Push in until the gold contacts are fully inserted into the socket.

Gold Contacts Edge

Notched Corner

E–68	Appendix C: Installing SIMMs

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Contents Okidata Publications Department OkidataContents Duplex Printing Important Safety Instructions English-iiiWarranty Enhancement Programs OKI ExtendOKI On-Site For more informationFCC/IC/CE Statements English-vFCC/IC/CE Setting Up Check the contentsSelect a Suitable Location UnpackGetting to Know Your Printer Front ViewSetting Up Prepare the Image DrumInstall the Toner Load Paper Paper SpecificationsPaper Feed Paths Load the Paper Tray Paper Tray GaugeStoring Paper Select a Paper Exit PathTop Paper Exit Rear Paper ExitBi-Directional Parallel Mode Connect to Your ComputerParallel Connection Attach the Parallel CableParallel Interface Pin Assignments ECPSerial Mode Serial Connection RS232-CAttach the Serial Cable RS232-C Serial InterfaceConnect to Power Install the Printer SoftwareCheck the Menu Model 20DX Only Print the DemoPaper Size Indicator Control PanelSelect the Display Language Control Panel LightsControl Panel Button Functions Button Function SummarySelecting Printer Features Using Your Printer Driver Selecting Printer Features Using the Printer Main MenusHow to Use the Main Menus Printer MenusQuick Access Menus Using the Level-1 MenuPrinter Menus Level-1 Menu SettingsSummary of Level-1 Categories Light to Heavy weight values are same as specified for Tray Fonts & Symbols Default settings below are in italic Level-2 Menu Settings Using the Level-2 MenuSummary of Level-2 Categories Auto Operation Clearable Wrnings Summary of Maintenance Menu Categories Maintenance Menu SettingsDUP ADJ Page English-27 Front FeederEnvelopes Using the Front Feeder to Print Multiple Pieces of Media Setting up Manual Feed for Standard Weight Paper Front Feeder Printing Individual Pieces Manual FeedManual Feed Standard Paper Front FeederSetting up to Print an Envelope Manual Feed EnvelopesSetting up to Print Labels Manual Feed LabelsSetting up to Print a Transparency Manual Feed TransparenciesSetting up to Print Heavy Stock Heavy Card Stock SpecificationsManual Feed Heavy Card Stock Using the Automatic Tray Switch Feature Printer goes off-lineDuplex Printing Portrait Versus LandscapeDuplex Printing Windows NT Duplex Printing WindowsClick Start, Settings, Printers Click Document DefaultsClick Properties Click Print on Both Sides Duplex PrintingFonts Available FontsPrinting a Sample of Resident Fonts Summary of Available FontsCG Omega 61 Symbol Sets Univers Condensed 61 Symbol SetsAntique Olive 61 Symbol Sets Garamond 61 Symbol SetsUsing Bar Code Fonts Symbol SetsSelecting Fonts Adobe PostScript Fonts OptionPage Optional Paper Handling Accessories AccessoriesAdditional Options Expanded Memory SIMMs Simm ConfigurationsMB P/N Maintenance General Consumables InformationToner Cartridge Type 7 P/N Image Drum Type 7 P/NReplacing the Toner Cartridge P/N Maintenance Precautions Replacing the Image Drum Cartridge P/NDisplays Cleaning the LED Array Generating a Drum CleaningProblem Solving Paper JamsPaper Jam Messages English-49Clearing Paper Jams Why Paper Jams OccurClearing a Paper Input Jam Problem Solving Clearing a Paper Feed JamClearing Duplex Feeder Paper Jams Clearing a Paper Exit JamClearing Duplex Feeder Input Jams Clearing a Duplex Feeder Open JamClearing Duplex Feeder Jams 1 Printer Display Messages Clearing Duplex Feeder JamMessage Error Message OFF-LINE Message Paper OUTPrint Quality Problems Message ResetMessage Printing Blank sheets printedHas gray background Prints all blackHas repeating marks An oblong area of faint print appears on eachFaded print after installation Print is smeared or blotchedPrinted page is light or blurred Bold characters and dark lines are smearedAdjusting Print Quality Software ProblemsMaintenance Menu Level-1 MenuStrange symbols appear during normal printing Last page of document is not printedFirst line on page won’t print Graphics won’t position properlyHardware Problems OdorsAppendix a Service & Support How to Get ServiceOkidata Service Centers Purchasing SuppliesInternet Ways to PurchaseAppendix B Specifications General SpecificationsPaper Handling Specifications Environmental SpecificationsElectrical Specifications Physical SpecificationsPower Specifications are subject to change without noticeInstalling SIMMs Appendix C Installing SIMMsEnglish-67 Pull the side panel out and remove it from the printer Appendix C Installing SIMMs Print Menu displays then the menu prints On-Site Repair Limited WarrantyEnglish-71 United States CanadaArgentina ChileMaterial Safety Data Sheet Okipage 20 TonerSpill Cleanup and Disposal Special PrecautionsHealth Hazard Data Reactivity DataIndex English-75IBM Proprinter emulation Index 65-66Page