- 97 -6. TroubleshootingOther IssuesThis section explains the issues you may encounter while operating your printer and how tosolve them. See the corresponding items for Monitoring Tool, Mobile Print, AirPrint, GoogleCloud Print, and troubles related to the NFC.Monitoring Tool (Advanced Manual)Mobile Device Problems (Advanced Manual)• Unable to Print from a Computer• Unable to Install a Printer Driver Successfully• Image Quality Issues• Vertical White Lines Appear• Printed Images are Fading Vertically• Printed Images are Light• White Spots and Lines Appear• Dew Condensation Appears on Printed Paper• Vertical Lines Appear• Horizontal Lines and Spots Appear Periodically• White Area on Paper is Lightly Stained• The Periphery of Characters is Smudged• The Entire Paper Area is Lightly Stained When Printing on Envelopes or Coated Paper• Toner Comes Off When Printed Paper is Rubbed• Uneven Gloss• Black or White Dots Appear• Dirt is Printed• The Entire Page is Printed Black• Nothing is Printed• White Patches Appear• Color of the printed image is not what you expect• Feeding Issues• Problems on the Machine• Check the following explanations, smartphone app and "FAQ" in the web site.• If you cannot solve a problem with the following solutions, contact your dealer.• For problems caused by an application, contact the manufacturer of the application.General Causes• Common to Windows and Mac• For WindowsUnable to Print from a ComputerCause Solution ReferenceThe machine is in Sleep mode. Press the «POWER SAVE» button toenter standby status. Energy Saving FunctionThe machine is turned off. Turn on the machine. Turning On the PowerA LAN cable or USB cable isunplugged.Check that the cable is plugged intothe machine and computer properly. Connecting to a ComputerThere may be a problem with acable.Replace the cable with a new cable. -The machine is offline. Press the «ONLINE» button on theoperator panel.-An error message is displayed on thedisplay screen.Check the error messages displayedon the display screen. Error MessagesThe interface setting is disabled. Check the interface setting on thedisplay screen to make sure that thereis a consistency with the machine'ssettings and the network connectionenvironment.Connecting to a ComputerConnecting to a Wireless LANThere is a problem with the printfunction.Check if the menu map can beprinted. Test Printing from the PrinterCause Solution ReferenceThe machine is not set as the defaultprinter.Set the machine as the default printer.Right-click the printer icon to open"Printer folder", and then select [Setas Default Printer].For Windows 10 users, uncheck "LetWindows manage my default printer".-The output port of the printer driver isincorrect.Select the output port for connectingthe machine.-
