Hitachi N9120 manual Scanner initialization or hardware problems, Check that the scanner has power

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Chapter 4

(continued)

LED indications

Scanner action or condition

The Attention LED blinks green at a medium speed.

The Power LED is lit with a steady green light.

The Power LED is lit with a steady green light.

The scanner is on and ready to scan.

The scanner is scanning an original.

Both LEDs are off.

There is no power to the scanner.

Scanner initialization or hardware problems

If the scanner does not work after installation or if the scanner has stopped working correctly, you might see a message on the computer screen that is similar to one of the following:

The scanner could not be initialized.

The scanner could not be found.

An internal error has occurred.

The computer cannot communicate with the scanner.

To fix the problem, check the scanner cables and software as described in the following sections:

Check that the scanner has power

Check the USB connection

Uninstall and then reinstall the HP Scanjet utilities

Check that the scanner has power

The power cable is connected between the scanner and a power outlet.

Ensure that the power cable is securely connected between the scanner and a live electrical outlet.

If the power cable is connected to a surge protector, ensure that the surge protector is plugged into an outlet and turned on.

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

30 Troubleshooting

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Contents HP Scanjet N9120 Page Contents Page Use the scanner Scanner overviewScanner front panel buttons Use the automatic document feeder Scanner lamp settingLoad original documents Chapter Weight 49-120 g/m2 13-32 lb Load original documents How to load documents Load an original on the scanner glass How to scan Scan from HP Smart Document Scan Software Associate a quick start button with scanning softwareScan from scanning software How to copy Scan from ISIS- or TWAIN-compliant scanning softwareUseful scanner features Work with HP Smart Document Scan Software profilesAutomatically rotate scanned pages Scan extra long documentsFilter out color from a document color dropout Disable Misfeed Multipick Detection Use scanner hardware compression for faster scansSet up and use the imprinter Scan without reviewingInstall or replace a print cartridge in the imprinter Position the imprinter Test the imprinter Clean the imprinter Use the imprinterClean the automatic document feeder Care and maintenanceOrder maintenance and scanning supplies Clean the automatic document feeder Chapter Clean the scanner glass Clean the scanner fan filters Replace the feed roller and separation pad HP Scanner Tools Utility scanner maintenance information Troubleshooting Scanner LEDsScanner initialization or hardware problems Check that the scanner has powerCheck the USB connection Scanner will not turn on Scanner operation problemsUninstall and then reinstall the HP Scanjet utilities Scanner lamp stays on Scanner does not scan right awayScanner scans only one side of a double-sided Scanned image is fuzzyImage is completely black or completely white Scanned pages are missing at the scan destinationOptimizing scanning and task speeds Scanned images are not straight Scanned images contain streaks or scratchesVertical white stripes appear on the printed Scan files are too largeScanner buttons are not working correctly Imprinter is not printing or the print quality is poorAn unexpected program opens when a button is pressed Buttons do not workAutomatic document feeder problems Wrong profile is used when the Scan button is pressedClear a jam from the automatic document feeder Chapter Automatic document feeder problems Bottom of the scanned image is cut off Additional troubleshooting informationAutomatic document feeder does not feed paper Accessibility LED ReaderIndex