HP N8400 manual Scanner buttons are not working correctly, Buttons do not work

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Scanner buttons are not working correctly

•Buttons do not work

•An unexpected program opens when a button is pressed

•Wrong profile is used when a quick start button is pressed

Buttons do not work

After each step, press a button to see if it is working correctly. If the problem persists, proceed with the next step.

1.The buttons might be disabled in the HP scanning software. Verify the Disable front panel buttons setting in the HP Scanner Tools Utility.

2.A cable might be loose. Ensure that the USB cable and the power supply are securely connected.

3.Turn off the scanner, wait 30 seconds, and then turn the scanner back on.

4.Restart your computer.

5.If the problem persists, the buttons might be disabled outside of the HP scanning software. Try the following procedure:

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

b. Examine the buttons setting for your scanner:

•Windows 2000: Ensure that the Disable Device Events option is not selected.

•Windows XP and Vista: Ensure the Take No Action option is not selected.

An unexpected program opens when a button is pressed

Depending on the HP scanning software installed on the computer, an unexpected program might open when a profile is selected and a button is pressed.

After each step, press a button to see if it is working correctly. If the problem persists, proceed with the next step.

1.Verify that the expected program is installed on the computer by looking at the Start menu.

If the program is not installed, then use the program CD to install the program.

2.If the problem persists, the buttons might be assigned outside of the HP scanning software. Try the following procedure:

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

b. Ensure that the Start this program option is selected and that the correct application is selected in the drop-down list.

Wrong profile is used when a quick start button is pressed

Use the HP Scanner Tools Utility to check which HP Smart Document Scan Software profiles are assigned to the quick start buttons. If necessary, reset the profile assigned to the button.

For more information, see the HP Scanner Tools Utility help.

Scanner buttons are not working correctly

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Contents HP Scanjet N8400 series Trademark credits Copyright and licenseContents Advanced technical features TroubleshootingWhat you can do with the scanner Scanner overviewScanner hardware Power Save buttonScanner front panel buttons Quick start buttonsScan Document To buttons Copy buttonsScanner lamp setting Scanner softwareHP Smart Document Scan Software HP Document Copy Utility HP Scanner Tools UtilityScan Progress Window Setup and Support Guide Where to get additional informationUser Guide Click View or print guidesLCD Reader AccessibilityControl of the scanner buttons HP Scanner Tools Utility helpScan and Copy Basic scanning stepsBasic copying steps Load originals Place an original on the scanner glassLoad paper into the document feeder Scan from HP Smart Document Scan Software Scan from the scanner front panel buttonsScan with one button press Scan from other software programsSet up an HP Smart Document Scan Software profile Set up scan profilesAssign profiles to quick start buttons Choose profiles for display on the scanner front panelClick Continue Import and export profiles HP Scanner Tools Utility Maintenance tab Care and maintenanceOrder maintenance and scanning supplies Clean the scanner glassMaintain the automatic document feeder ADF Clean the paper pathClean the ADF window Clean the feed roller Maintain the automatic document feeder ADF Chapter Replace the feed roller and separation pad Remove the automatic document feeder from the scannerChapter Scanner error messages TroubleshootingChapter Scanner does not start Scanner initialization or hardware problemsScanner operation problems Scanner has stopped working correctlyScanner will not turn on Scanner does not scan right away Scanner lamp stays onScanner scans only one side of a double-sided Scanned image is fuzzyVertical white stripes appear on the printed Scanned images are not straightScanner glass is dirty Scan files are too largeWrong profile is used when a quick start button is pressed An unexpected program opens when a button is pressedScanner buttons are not working correctly Buttons do not workPaper jamming, skewing, misfeeds, or multiple-page feeds Automatic document feeder ADF problemsPaper does not feed from the ADF Bottom of the scanned image is cut offAn item loaded in the ADF jams repeatedly Scanned images have streaks or scratchesClear jams from the ADF Clear a jam from the start of the paper pathChapter Clear a jam at the end of the paper path Remove a paper jam within the ADF Contact HP SupportLong pages Advanced technical featuresPage ADF Index
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