RS-232C/RS-422 Serial Interface Option 3-3Your Point of PurchaseYour Point of PurchaseYour local vendor from whom you purchased this printer may be best equipped to help you. Your vendorhas specially trained service technicians available to answer questions and the equipment to analyze yourprinter problems.Your Application VendorOften, “printing” problems have more to do with the application being used than with the printer. In thiscase, the application manufacture is the best source of help.OKI ResourcesAvailable 24/7 (24 Hours a Day, 7 Days a Week)• Visit our multilingual web site www.okidata.com• Visit http://my.okidata.com• Call 1-800-654-3282Technical SupportTechnical Support is available world-wide. Please refer to your point of purchase for the appropriate con-tact in your area.When calling for assistance, please have the following information readily available:• Your phone number, fax number and shipping address.• A description of the problem.• The printer model.• The type of host computer you are using.• The type and version of operating system you are using.• The application and version you are using.• The interface you are using (e.g., network, parallel, serial).• If using the network interface, the network protocol (TCP/IP, EtherTalk, IPX/SPX, NetBIOS/Net-BEUI).• The printer emulation you are using (e.g., PCL or PostScript).• A printout of your printer’s Configuration Summary. (Refer to your printer’s User manual).• If you have a printer hardware problem you cannot resolve, provide the error message displayed onthe Control Panel. For a list of error messages, refer to your printer’s User manual.NOTE: To confirm that a problem is isolated to the RS-232C/RS-422 Serial Interface, you may want toremove the serial interface from the printer and diagnose the printer using the User’s Manual thatcame with your printer. If the condition persists, it can be assumed that the problem resides withinthe printer and not necessarily the serial interface.• • •