Epson Artisan 700/Epson Stylus Photo PX700W/TX700W Revision CTROUBLESHOOTING Troubleshooting without Error Message 76Confidential3.4.2 Troubleshooting Electrical ProblemsCheck the points described in the table below when the printer does not operate at all (LED does not light) at power-on.3.4.3 Troubleshooting I/F-related ProblemsThis section provides information for troubleshooting problems related to the USB interfaces and the Memory Card Slot. USB Interface ErrorTable 3-22. Troubleshooting Power Supply ProblemsProblem Check Point RemedyPower code failure Replace the power code with another one, and checkwhether the printer is normally powered or not. Replace the power code with a new one.Incorrect AC power supply Does the AC power source match with the requirement ofthe printer? Use the correct power source.Poor connection of the connectors Is the Power Supply Unit Cable properly connected toCN501 connector on the Main Board? Connect the cable correctly.The fuse is blown Is the fuse (F1) on the Power Supply Board blown? Replace the Power Supply Board.Abnormal output of the Power Supply Board Is a normal voltage being output from the Power SupplyBoard?Replace the Main Board when the output voltage is normal.Replace the Power Supply Unit when the output voltage isabnormal.Table 3-23. USB I/F ErrorProblem Check Point RemedyIncorrect printer driver installationClick My Computer - Property - Device Manager onWindows computer. Is the printer driver is included in theOther Devices by mistake?Uninstall the driver and reinstall it correctly referring to theUsers Guide.USB cable failure Replace the cable with another one. Does the problem stilloccur? Replace the USB cable.Poor connection Is the USB terminal free from foreign materials? Remove the foreign material, and clean the contact points.Main board failure Check the Main Board for any damage. Replace the Main Board.Card board failure Check the STG Board for any damage. Replace the STG Board.
