ET-3900 Series L6360 Series ET-3950 Series L6370 Series

User's Guide

> Solving Problems > Cannot Print or Scan > The Printer Cannot Connect by USB

The Printer Cannot Connect by USB

One of the following situations may be the cause.

The USB cable is not plugged into the USB inlet 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

Connect the USB cable to a different port, or change the USB cable.

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, reconnect the printer using one of the following methods.

  • Use a USB 3.0 cable(Supported models only).

  • 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.