Clean the product
Occasional cleaning of the scanner helps ensure high-quality scans. The amount of care necessary depends on 
several factors, including the amount of use and the environment. Perform routine cleaning as necessary.
Clean the scanning strips
NOTE: The HP ScanJet Enterprise Flow N9120 fn2 Document Scanner is shown in this procedure, however, the 
instructions are also correct for the HP Digital Sender Flow 8500 fn2 Document Capture Workstation.
To clean the scanning strip components, follow these steps:
1. Press the Power button to turn o the scanner, and then disconnect the power cable and other cables from 
the scanner.
2. Lift up the automatic document feeder (ADF).
3. Clean the scanning strips with a soft, lint-free cloth that has been sprayed with a mild glass cleaner.
CAUTION: Use only glass cleaner to clean the scanning strips. Avoid cleaners that contain abrasives, 
acetone, benzene, and carbon tetrachloride, all of which can damage the scanning strips. Avoid isopropyl 
alcohol because it can leave streaks on the scanning strips.
Do not spray the glass cleaner directly on the scanning strips.
4. Dry the scanning strips with a dry, soft, lint-free cloth. Wipe the strips of gray, reective material on each 
strip.
5. Close the ADF, reconnect the USB cable and power supply to the scanner, and then press the Power button 
to turn on the scanner. The scanner is now ready to use.
Clean the rollers
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Introduction
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Clean the rollers
Introduction
The rollers may need to be cleaned under the following conditions:
82 Chapter 3   Care and maintenance ENWW