Oki B721 Maintenance Manual

Also see for ES7131: User manual User manual User manual

Contents

Oki B721 Maintenance Manual Manual pdf 206 page image

Oki Data CONFIDENTIAL45487001TH Rev.1 6-73 /6. Troubleshooting procedure6.5.5 Network troubleshooting(1) Print cannot be activated from UtilitiesCheck item Check work Actions to be takenat NG(1) Check the LINK lampCheck if the LINKlamp (green) isilluminating or not.Check if the HUB and a printer are connectednormally. (Check that the network cable isconnected normally.)Re-connect thenetwork cablenormally.Confirm that the straight network cable isbeing used.Replace thecable with thestraight cable.Make an attempt to change connection of thenetwork cable to other port of a HUB.Try to change theHUB.(2) Check the network informationCheck if thenetwork informationcan be printednormally or not.Operate the panel (Print Printer InformationNetwork Print) and print out the networkinformation.Re-write theNIC-F/W byusing Utilities.(3) Check contents of the network information.Confirm the IPaddress, SUB netmask and gatewayaddress.Confirm the IP address, SUB net mask andgateway address that are printed on thenetwork information.Set the IPaddress, SUB netmask and gatewayaddress normally.(4) Check if communication is possible or not through networkConfirm if the Pingcommand can besent or not from aPC to a printer.Confirm if correct reply is returned from aprinter to a PC when the PC sends the Pingto a printer.Set the IPaddress, SUB netmask and gatewayaddress normally.(5) Check the Utilities.Check setting of theOKI LPR Utilities.Check the setting items of the OKI LPRUtilities.Set the OKI LPRUtilities settingitems correctly.(6) Check the following from an OS standard portConfirm thestandard LPR portof the WINDOWSstandard (NT, 2000,XP).Set the standard LPR port of the WINDOWSstandard (NT, 2000, XP), and confirm ifprinting can be performed or not.Set the standardLPR port of theWINDOWSstandard (NT,2000, XP) correctly.6.5.5.1 Connection error occurs with the Web browserIf the printer setting page cannot be displayed by the web browser "https://address>", check the followings.Establish connection by "https://.1) If the printer setting page is displayed, the followings are probable.Take an appropriate measure by referring to the following items.* Certificate is not created yet. (Or failed to create certificate.)Refer to section "6.5.5.1.1 Is the certificate created?".* Certificate has been created but the SSL/TLS setting is turned off.Refer to section "6.5.5.1.2 Is the SSL/TLS setting set to [ON]?".2) If the printer setting page is not displayed, the followings are probable.* Version number of the browser is old.Refer to section "6.5.5.1.3 Check version number of the Web browser".* Encryption strength has been set to Strong.Refer to section "6.5.5.1.4 Check encryption strength of a printer".* The key exchange system of a printer is not supported by the browser.(Compatibility problem)Refer to section "6.5.5.1.5 Check the key exchange type of the certificate".