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HP N8400 manual Maintain the automatic document feeder ADF

Models: N8400

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To clean the feed roller, follow these steps:

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

2.Open the ADF hatch.

3.Lift the green lever to raise the feed roller to the vertical position.

Maintain the automatic document feeder (ADF)

Page 23

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HP N8400 manual Maintain the automatic document feeder ADF

Contents

HP Scanjet N8400 series Trademark credits Copyright and licenseContents Advanced technical features TroubleshootingWhat you can do with the scanner Scanner overviewQuick start buttons Power Save buttonScanner hardware Scanner front panel buttonsScan Document To buttons Copy buttonsHP Smart Document Scan Software Scanner lamp settingScanner software Scan Progress Window HP Document Copy UtilityHP Scanner Tools Utility Click View or print guides Where to get additional informationSetup and Support Guide User GuideHP Scanner Tools Utility help AccessibilityLCD Reader Control of the scanner buttonsBasic copying steps Scan and CopyBasic scanning steps Load paper into the document feeder Load originalsPlace an original on the scanner glass 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 profilesClick Continue Assign profiles to quick start buttonsChoose profiles for display on the scanner front panel Import and export profiles Clean the scanner glass Care and maintenanceHP Scanner Tools Utility Maintenance tab Order maintenance and scanning suppliesMaintain 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 will not turn on Scanner operation problemsScanner has stopped working correctly Scanned image is fuzzy Scanner lamp stays onScanner does not scan right away Scanner scans only one side of a double-sidedScan files are too large Scanned images are not straightVertical white stripes appear on the printed Scanner glass is dirtyButtons do not work An unexpected program opens when a button is pressedWrong profile is used when a quick start button is pressed Scanner buttons are not working correctlyBottom of the scanned image is cut off Automatic document feeder ADF problemsPaper jamming, skewing, misfeeds, or multiple-page feeds Paper does not feed from the ADFClear a jam from the start of the paper path Scanned images have streaks or scratchesAn item loaded in the ADF jams repeatedly Clear jams from the ADFChapter 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