HP Enterprise Flow N9120 L2683B201 manual Scanner operation problems, Scanner will not turn on

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Chapter 4

3.Restart the computer.

4.After the computer has restarted, try using the scanner.

If the scanner works and you changed the way it was connected to the computer in step 1, the communication problem might involve the USB hub, the docking station, a USB port, or another USB device. Leave the scanner directly connected to the computer. Try using the scanner after reconnecting each additional USB device, and disconnect any USB devices that prevent the scanner from working correctly.

If the scanner does not work, uninstall and then reinstall the HP Scanjet drivers and utilities.

Uninstall and then reinstall the HP Scanjet utilities

If checking the scanner cable connections did not solve the problem, the problem might have occurred because of an incomplete installation. Try uninstalling and then reinstalling the HP scanning utilities.

1.Press the Power switch to the off position, and then disconnect the USB cable and power cable from the scanner.

2.Use the Add/Remove tool (in Windows Vista, the Programs and Features tool) from the Control Panel to uninstall the following items:

•HP Scanjet N9120 Document ISIS/TWAIN

•HP Scanjet N9120 Utilities

3.Restart the computer.

4.Use the HP Scanning Software CD that came with the scanner to reinstall the HP Scanjet Drivers and Tools.

5.Reconnect the USB cable and power cable to the scanner, and then press the Power switch to the on position.

After 30 seconds, the Power LED is lit with a steady green light and the Attention LED is off.

Scanner operation problems

•Scanner will not turn on

•Scanner lamp stays on

•Scanner does not scan right away

•Scanner scans only one side of a double-sided page

•Scanned image is fuzzy

•Scanned pages are out of order at the scan destination

•Scanned pages are missing at the scan destination

•Optimizing scanning and task speeds

•The image is completely black or completely white

•Scanned images are not straight

•Scanned images contain streaks or scratches

•Vertical white stripes appear on the printed page

•Scan files are too large

•The imprinter is not printing or the print quality is poor

Scanner will not turn on

If the scanner will not turn on when you press the front panel scanner buttons, verify the following:

•Verify that power is being supplied to the scanner.

•Ensure that the Power switch on the right side of the scanner is in the on position.

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

Scanner lamp stays on

The scanner lamp should time out and turn off automatically after a period of inactivity (about 15 minutes).

26 Troubleshooting

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Contents HP Scanjet Enterprise N9120/Flow N9120 Copyright and license Trademark creditsContents Product care and support Scanner overview Use the scannerScanner front panel buttons Scanner lamp setting Icon Button name Description CopyLoad original documents Use the automatic document feederHow to load documents Load original documents Load an original on the scanner glass Associate a quick start button with scanning software How to scanScan from scanning software Scan from HP Smart Document Scan Software How to copyScan from ISIS- or TWAIN-compliant scanning software Useful scanner features Work with HP Smart Document Scan Software profilesView profiles Create profilesScan extra long documents Automatically rotate scanned pagesFilter out color from a document color dropout Disable Misfeed Multipick Detection Use scanner hardware compression for faster scansInstall or replace a print cartridge in the imprinter Set up and use the imprinterScan without reviewing Set up and use the imprinter Cartridge Status section, click Record Replacement Position the imprinterTest the imprinter Imprinter tabClean the imprinter Cartridge Status section, click Clean ImprinterUse the imprinter Cartridge Status section, click Test ImprinterOrder maintenance and scanning supplies Care and maintenanceClean the automatic document feeder Clean the automatic document feeder Chapter Clean the scanner glass Clean the scanner fan filtersHP Scanner Tools Utility scanner maintenance information Maintenance tabReplacement Replace the feed roller and separation padHP Scanner Tools Utility scanner maintenance information Troubleshooting Scanner LEDsCheck that the scanner has power Installation troubleshootingCheck the USB connection Scanner operation problems Uninstall and then reinstall the HP Scanjet utilitiesScanner will not turn on Scanner lamp stays onScanner does not scan right away Scanner scans only one side of a double-sidedScanned image is fuzzy Scanned pages are out of order at the scan destinationOptimizing scanning and task speeds Image is completely black or completely whiteScanned images are not straight Scanned images contain streaks or scratchesImprinter tab, and then click Clean Imprinter Vertical white stripes appear on the printedScan files are too large Imprinter is not printing or the print quality is poorAn unexpected program opens when a button is pressed Wrong profile is used when the Scan button is pressedScanner buttons are not working correctly Buttons do not workAutomatic document feeder problems Clear a jam from the automatic document feederOpen automatically, gently pry it open Automatic document feeder does not feed paper Bottom of the scanned image is cut offAdditional troubleshooting information Maintenance, troubleshooting, and support Post-warranty period Extending or upgrading your warrantyProduct care and support Getting assistanceRegulatory information and product specifications Hewlett-Packard limited warranty statement Materials disposalChapter Accessibility Accessibility featuresLED Reader Control of the scanner buttonsChapter Accessibility
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