Epson WorkForce Pro WF-C879RBAM User Manual page 236

Solving Problems
The Printer Cannot Connect by USB (Mac OS)
The following causes can be considered.
The USB cable is not plugged into the electrical outlet correctly.
Connect the USB cable securely to the printer and the computer.
There is a problem with the USB hub.
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.
If the USB cable cannot be recognized, change the port, or change the USB cable.
The printer is connected to a SuperSpeed USB port.
If you connect the printer to a SuperSpeed USB port using a USB 2.0 cable, a communication error may occur on
some computers. In this case, re-connect the printer using one of the following methods.
❏ Use a USB 3.0 cable.
❏ Connect to a Hi-Speed USB port on the computer.
❏ Connect to a SuperSpeed USB port other than the port that generated the communication error.
Cannot Scan Even Though a Connection has been Correctly Established (Mac OS)
Scanning at a high resolution over a network.
Try scanning at a lower resolution.
Cannot Start Scanning from Smart Device
Make sure the smart device and the printer are connected correctly.
The cause and solution to the problem differ depending on whether or not they are connected.
Checking the Connection Status
Use Epson iPrint to check the connection status for the smart device and the printer.
See the following to install Epson iPrint if it is not already installed.
"Application for Printing Easily from a Smart Device (Epson iPrint)" on page 370
1. On the smart device, start Epson iPrint.
2. Check that the printer name is displayed on the home screen.
When the printer name is displayed, a connection has been successfully established between the smart device
and the printer.
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The Printer Does Not Work as Expected
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Cannot Start Scanning
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