Epson WF-7840 Series User Manual page 212

Solving Problems
The USB cable is not plugged into the electrical outlet correctly.
Solutions
Connect the USB cable securely to the printer and the computer.
There is a problem with the USB hub.
Solutions
If you are using a USB hub, try to connect the printer directly to the computer.
There is a problem with the USB cable or the USB inlet.
Solutions
If the USB cable cannot be recognized, change the port, or change the USB cable.
You need to reconfigure the USB connection.
Solutions
Disconnect the USB cable from the computer. Right-click on the printer icon displayed on the computer,
and then select Remove Device. Next, connect the USB cable to the computer.
If you cannot use a USB cable, reset the USB connection by following the steps for changing the method
of connecting to a computer. See the related information link below for details.
"Making Settings for Connecting to the Computer" on page 263
&
Cannot Send or Receive Faxes Even Though a Connection has been Correctly
Established (Windows)
The following causes can be considered.
The software is not installed.
Solutions
Make sure that the PC-FAX driver have been installed on the computer. The PC-FAX driver is installed
with FAX Utility. Follow the steps below to check if it is installed.
Make sure the printer (fax) is displayed in Devices and Printers, Printer, or Printers and Other
Hardware. The printer (fax) is displayed as "EPSON XXXXX (FAX)". If the printer (fax) is not displayed,
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The Printer Does Not Work as Expected
>
Cannot Send or Receive Faxes
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