HP G4050 User Guide - Page 22
Scanner will not turn on, Scanner does not scan right away, Buttons appear not to work - camera
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Chapter 3 Scanner will not turn on 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