HP N8400 manual Maintain the automatic document feeder ADF, Clean the paper path

Chapter 4

3.Clean the glass by using a soft, lint-free cloth that has been sprayed with a mild glass cleaner.

CAUTION: Use only glass cleaner to clean the scanner glass. Avoid cleaners that contain abrasives, acetone, benzene, and carbon tetrachloride, all of which can damage the scanner glass. Avoid isopropyl alcohol because it can leave streaks on the glass.

Do not spray the glass cleaner directly on the glass. If too much glass cleaner is applied, the cleaner could leak under the glass and damage the scanner.

4.Dry the glass with a dry, soft, lint-free cloth.

5.When you have finished, reconnect the USB cable and power cable to the scanner.

NOTE: For instructions about how to clean the underside of the scanner glass, visit www.hp.com/support. Follow the online instructions to select your country/region and language, select the option to see support and troubleshooting information, and then enter the scanner product name and model number.

Maintain the automatic document feeder (ADF)

The ADF requires periodic maintenance depending on the amount of use and the type of paper that is fed through it. Use an HP paper-path cleaning cloth to clean the ADF when vertical streaks appear in images scanned by the ADF, when paper used in the ADF is dusty or dirty, or when the environment is dusty. If you use the ADF several times per week, monthly cleaning is recommended. Set up a cleaning routine that is appropriate for the scanner.

Use the following methods to maintain the ADF:

•Clean the paper path

•Clean the ADF window

•Clean the feed roller

•Replace the feed roller and separation pad

Clean the paper path

If scanned images have streaks or scratches, use the HP paper-path cleaning cloth to clean the paper path.

To order more HP paper-path cleaning cloths, go to www.hp.com/support. To clean the paper path, follow these steps:

1.Open the sealed HP paper-path cleaning cloth container, starting at the notch. Take care not to tear the cleaning cloth.

2.Remove the cleaning cloth and unfold it.

3.Place the unfolded cloth into the paper input tray.

4.Press the Tools () button on the scanner front panel to open the HP Scanner Tools Utility. Click the Maintenance tab.

18 Care and maintenance