If your printer is connected via a wireless network:

  1. Turn off your printer, wait 30 seconds, then turn it on.
  2. If the error continues:
    1. Under the Apple menu, select System Preferences.
    2. In the Hardware section, select Print & Fax.
    3. Click the "+" sign, then highlight your printer in the Bonjour list.
    4. Click Add.
      NOTE: If your printer is not listed, verify that your printer is still connected to your network. 

If your printer is connected via USB cable:

  1. Make sure:
    • the USB cable is securely connected to the printer and computer.
    • the printer is connected directly to your computer and not through a USB hub or other device.
    • you are using a USB High Speed 2.0 cable, and the distance between the printer and computer is less than 1.8 m (6 ft).
  2. If the error continues:
    1. Disconnect the USB cable from your printer and computer.
    2. Reconnect the USB cable to your printer, making sure it is secure.
      NOTE: Do       NOT connect the USB cable to your computer.
    3. From your computer:
      1. Under the Apple menu, select System Preferences.
      2. In the Hardware section, select Print & Fax.
    4. Connect the other end of the USB cable to your computer.
    5. When the computer detects the printer, it will appear in the printer list.
      NOTE: If the printer does not appear in the list, connect the USB cable to a different port on your computer.
  3. If the error still continues, use a different USB cable.
    NOTE: You can test your USB cable by connecting another USB device to your computer using the USB cable.

If you cannot print using a USB connection, but you can print using a network connection (Wi-Fi or Ethernet) the error may be caused by a conflict with the third-party software CANDLEAIR.

  1. Determine if you have CANDLEAIR Software installed:
    • Under the Apple menu, select System Preferences.
      If CANDLEAIR Software is installed, it will be listed in the Other row of the System Preferences window.
  2. To resolve the printing issue with a USB connection, uninstall CANDLEAIR:
    1. Under the Apple menu, select System Preferences.
    2. Click CANDLEAIR, then click Uninstall.
    3. If prompted, type your user password, then click OK.
    4. Click Restart Computer.
  3. To re-install CANDLEAIR Software at a later time, if needed:  
    1. Under the Apple menu, select System Preferences.
    2. Click CANDLEAIR.
    3. Click Install.
    4. If prompted, type your user password, then click OK.
    5. Click Quit.