Serial Connection RS232-C, Attach the Serial Cable | ALFA 20DX

Serial Connection: RS232-C

Attach the Serial Cable

To connect the printer to your computer:

1.Turn both your printer and computer OFF.

2.Insert the male connector on the cable into the serial port on your printer. Make sure the connector is fully inserted, then tighten the screws.

3.Insert the other end of the cable into the serial port on your computer and tighten the screws.

Caution!Be sure not to over tighten the screws — this could damage the screw posts!

RS232-C Serial Interface

Serial cable requirements:

•Cable must be shielded with twisted pair conductors, and must be UL and CSA approved

•Maximum length for serial cable is 6 feet (1.8 meters).

•Printer connector is Type 17LE-13250-27 (D4CC) receptacle (25 pins)

Serial Mode

The serial interface settings on your printer and computer must match. To change printer settings, enter the Level 2 menu (press ON-LINE to place the printer off-line, then press MENU 1/Menu 2 for 2 seconds, until PRINT MODE appears) and select the RS232C SERIAL category. Set FLOW CON- TROL, BAUD RATE, DATA BITS, PARITY, and MIN. BUSY to match the settings on your computer. Following are the printer default settings for these parameters:

FLOW CONTROL DTR HI POLARITY

BAUD RATE	9600 BAUD
DATA BITS	8 BITS
PARITY	NONE
MIN. BUSY	200 mSECONDS

Serial Interface Pin Assignments

Pin	Signal	Symbol	Direction

1	Frame Ground	FG	-

2	Transmitted Data	TD	To printer

3	Received Data	RD	To printer

4	Request to Send	RTS	From printer

5-6	-	-	-

7	Signal Ground	SG	-

8-17	-	-	-

18	+5V (50 ma max.)	-	From printer

19	-	-	-

20	Data Terminal Ready	DTR	From printer

21-25	-	-	-

Chapter 1: Setting Up

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ALFA 20DX manual Serial Connection RS232-C, Attach the Serial Cable, RS232-C Serial Interface, Serial Mode

Contents

Okidata Okidata Publications Department Contents Duplex Printing English-iii Important Safety Instructions For more information Warranty Enhancement ProgramsOKI Extend OKI On-Site English-v FCC/IC/CE Statements FCC/IC/CE Unpack Setting UpCheck the contents Select a Suitable Location Front View Getting to Know Your Printer Prepare the Image Drum Setting Up Install the Toner Load Paper Paper SpecificationsPaper Feed Paths Paper Tray Gauge Load the Paper Tray Select a Paper Exit Path Storing Paper Rear Paper Exit Top Paper Exit Attach the Parallel Cable Bi-Directional Parallel ModeConnect to Your Computer Parallel Connection ECP Parallel Interface Pin Assignments RS232-C Serial Interface Serial ModeSerial Connection RS232-C Attach the Serial Cable Print the Demo Connect to PowerInstall the Printer Software Check the Menu Model 20DX Only Control Panel Lights Paper Size IndicatorControl Panel Select the Display Language Button Function Summary Control Panel Button Functions Printer Menus Selecting Printer Features Using Your Printer DriverSelecting Printer Features Using the Printer Main Menus How to Use the Main Menus Using the Level-1 Menu Quick Access Menus Printer 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 Maintenance Menu Settings Summary of Maintenance Menu Categories DUP ADJ Page English-27 Front FeederEnvelopes Using the Front Feeder to Print Multiple Pieces of Media Front Feeder Setting up Manual Feed for Standard Weight PaperFront Feeder Printing Individual Pieces Manual Feed Manual Feed Standard Paper Manual Feed Envelopes Setting up to Print an Envelope Manual Feed Labels Setting up to Print Labels Manual Feed Transparencies Setting up to Print a Transparency Setting up to Print Heavy Stock Heavy Card Stock SpecificationsManual Feed Heavy Card Stock Printer goes off-line Using the Automatic Tray Switch Feature Duplex Printing Windows Duplex PrintingPortrait Versus Landscape Duplex Printing Windows NT Click Print on Both Sides Duplex Printing Click Start, Settings, PrintersClick Document Defaults Click Properties Summary of Available Fonts FontsAvailable Fonts Printing a Sample of Resident Fonts Garamond 61 Symbol Sets CG Omega 61 Symbol SetsUnivers Condensed 61 Symbol Sets Antique Olive 61 Symbol Sets Adobe PostScript Fonts Option Using Bar Code FontsSymbol Sets Selecting FontsPage Optional Paper Handling Accessories AccessoriesAdditional Options Expanded Memory SIMMs Simm ConfigurationsMB P/N Image Drum Type 7 P/N MaintenanceGeneral Consumables Information Toner Cartridge Type 7 P/N Replacing the Toner Cartridge P/N Maintenance Replacing the Image Drum Cartridge P/N Precautions Displays Generating a Drum Cleaning Cleaning the LED Array English-49 Problem SolvingPaper Jams Paper Jam Messages Clearing Paper Jams Why Paper Jams OccurClearing a Paper Input Jam Clearing a Paper Feed Jam Problem Solving Clearing a Duplex Feeder Open Jam Clearing Duplex Feeder Paper JamsClearing a Paper Exit Jam Clearing Duplex Feeder Input Jams Clearing Duplex Feeder Jams 1 Clearing Duplex Feeder Jam Printer Display Messages Message Error Message Paper OUT Message OFF-LINE Blank sheets printed Print Quality ProblemsMessage Reset Message Printing An oblong area of faint print appears on each Has gray backgroundPrints all black Has repeating marks Bold characters and dark lines are smeared Faded print after installationPrint is smeared or blotched Printed page is light or blurred Level-1 Menu Adjusting Print QualitySoftware Problems Maintenance Menu Graphics won’t position properly Strange symbols appear during normal printingLast page of document is not printed First line on page won’t print Odors Hardware Problems How to Get Service Appendix a Service & Support Ways to Purchase Okidata Service CentersPurchasing Supplies Internet Environmental Specifications Appendix B SpecificationsGeneral Specifications Paper Handling Specifications Specifications are subject to change without notice Electrical SpecificationsPhysical Specifications Power Installing 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 Chile United StatesCanada Argentina Okipage 20 Toner Material Safety Data Sheet Reactivity Data Spill Cleanup and DisposalSpecial Precautions Health Hazard Data English-75 Index IBM Proprinter emulation 65-66 IndexPage