Scanner will not turn on

Chapter 3

If the scanner will not turn on when you press the front-panel scanner buttons, check for these possible problems:

●The scanner might have been unplugged. Check to see that the power cable has not become disconnected from the scanner or unplugged from the power source.

●The scanner might be turned off. Check to see that the scanner power switch is in the on position.

●Check to see that the TMA cable has not become disconnected from the scanner.

Scanner does not scan right away

If the scanner has not been used for a while, the scanner lamp might need to go through a warm-up period before scanning can begin. If the scanner lamp needs to warm up, it takes a moment after starting the software or pressing a scanner button for scanning to begin.

To change the lamp warm-up setting, open the HP Solution Center, click Settings, click Scan Settings, and then click Scan Preferences.

Buttons appear not to work

After each step, start a scan to see if the buttons are working. If not, proceed with the next step.

●A cable might be loose. Ensure that the USB cable, the TMA cable, and the power cable are securely connected.

●Turn the scanner off using the power switch, and then turn it back on again.

●Restart your computer.

●The buttons might be disabled. Try the following procedure:

–Open Control Panel, select Scanners and Cameras, and then select your scanner model from the list.

–Open Properties, and then click the Events tab. From the Scanner events list, select Scan Document button press.

–Ensure that the HP Scanning software option is selected.

–Windows 98 and Windows 2000: Ensure that the Disable Device Events option is not selected.

–Windows Me and Windows XP: Ensure the Take No Action option is not selected.

●The Button Disable Utility might have been used to disable the buttons. For more information, see Button Disable Utility.

20	HP Scanjet G4000 series