Advanced Guide > Troubleshooting > Cannot Connect to Computer with a USB Cable ProperlyU309Cannot Connect to Computer with a USB Cable ProperlyPrinting or Scanning Speed Is Slow/Hi-Speed USB Connection Does Not Work/"Thisdevice can perform faster" Message Is DisplayedIf your system environment is not fully compatible with Hi-Speed USB, the machine will operate ata lower speed provided under USB 1.1. In this case, the machine operates properly but printing orscanning speed may slow down due to communication speed.Check: Check the following to make sure that your system environment supportsHi-Speed USB connection.Does the USB port on your computer support Hi-Speed USB connection?Does the USB cable or the USB hub support Hi-Speed USB connection?Be sure to use a certified Hi-Speed USB cable. We recommend that the cable is nolonger than around 10 feet / 3 meters.Does the operating system of your computer support Hi-Speed USB connection?Obtain and install the latest update for your computer.Does the Hi-Speed USB driver operate properly?Obtain the latest version of the Hi-Speed USB driver compatible with your hardwareand reinstall it on your computer.ImportantFor details on Hi-Speed USB of your system environment, contact the manufacturer ofyour computer, USB cable, or USB hub.Page topPage 613 of 707 pagesCannot Connect to Computer with a USB Cable Properly