HP ScanJet Pro 4500 fn1 - Manual (Page 7)

4 Care and maintenance .................................................................................................................................. 27
Test and calibrate the touch screen .................................................................................................................... 28
Clean the product ................................................................................................................................................ 29
Clean the scanner glass .................................................................................................................... 29
Clean the scanning strips .................................................................................................................. 30
Replace parts ....................................................................................................................................................... 31
Replace the separation rollers and cover ......................................................................................... 31
Replace the pick up roller module .................................................................................................... 33
Order maintenance and scanning supplies ......................................................................................................... 34
5 Solve problems ........................................................................................................................................... 35
Basic troubleshooting tips .................................................................................................................................. 36
Test the scanner .................................................................................................................................................. 37
Reset the scanner ................................................................................................................................................ 38
Scanner installation troubleshooting ................................................................................................................. 39
Check the cables ................................................................................................................................ 39
Uninstall and then reinstall the HP ScanJet drivers and tools (Windows) ....................................... 39
Power issues ........................................................................................................................................................ 41
Scanner lamp stays on ...................................................................................................................... 41
Check that the scanner has power .................................................................................................... 41
Scanner will not turn on .................................................................................................................... 41
Paper jams ........................................................................................................................................................... 42
Clear paper jams in the automatic document feeder (ADF) ............................................................. 42
An item loaded in the scanner jams repeatedly ............................................................................... 43
Paper feed issues ................................................................................................................................................ 44
Paper jamming, skewing, misfeeds, or multiple-page feeds .......................................................... 44
Paper does not feed from the scanner ............................................................................................. 44
Automatic document feeder (ADF) does not feed paper ................................................................. 44
Originals are curling up in the scanner output tray. ......................................................................... 45
Image quality problems ...................................................................................................................................... 46
Vertical colored stripes appear on the printed page ........................................................................ 46
Scanned images are not straight ...................................................................................................... 46
The scanned images have streaks or scratches ............................................................................... 46
Scanned image is fuzzy ..................................................................................................................... 46
The scan is completely black or completely white ........................................................................... 46
The bottom of the scanned image is cut off ..................................................................................... 46
Scanner operation problems ............................................................................................................................... 47
Connection issues ............................................................................................................................. 47
Check the USB connection .............................................................................................. 47
Check the ethernet connection ....................................................................................... 48
Check the wireless connection ....................................................................................... 48
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