HP C8100 Cause:, Cause:, Cause:, Cause:, Solution:, Solution:, Solution:, Improper shutdown, HP All-in-Onenot found, Two-waycommunication lost

Chapter 14

HP All-in-One not found

Cause: This error applies only to USB-connected devices. The USB cable is not plugged in properly.

Solution: If the HP All-in-One is not properly connected to the computer, communication errors can occur. Make sure the USB cable is securely connected to the HP All-in-One and the computer, as shown below.

For more information, see:

“Communication problems over a USB connection” on page 145

Troubleshooting

Improper shutdown

Cause: The last time the HP All-in-One was used, it was not turned off properly. If the HP All-in-One is turned off by turning off the switch on a power strip or by using a wall switch, the device can be damaged.

Solution: Press the On button to turn the device on and off.

Two-way communication lost

Cause: The HP All-in-One is turned off.

Solution: Look at the display on the HP All-in-One. If the display is blank and the On button is not lit, the HP All-in-One is turned off. Make sure the power cord is firmly connected to the HP All-in-One and plugged into a power outlet. Press the On button to turn on the HP All-in-One.

Cause: The HP All-in-One is not connected to the computer.

202 Troubleshooting