WF-C21000 Series/WF-C20750 Series/WF-C20600 Series

User's Guide

> Solving Problems > The Printer Does Not Work as Expected > Cannot Send or Receive Faxes > Cannot Send and Receive Faxes (Mac OS) > Checking the Connection Status > The Printer Cannot Connect by USB (Mac OS)

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.

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.

The printer is connected to a SuperSpeed USB port.

Solutions

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.