Care and maintenance. HP ScanJet Enterprise Flow N9120 Document Flatbed Scanner, Scanjet Enterprise Flow N9120 Flatbed Scanner
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3 Care and maintenance
This section presents information about how to care for and maintain the scanner.
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Order maintenance and scanning supplies
Clean the automatic document feeder
Replace the feed roller and separation pad
HP Scanner Tools Utility scanner maintenance information
Occasional cleaning of the scanner helps ensure high-quality scans. The amount of care necessary depends upon several factors, including the amount of use and the environment. You should perform routine cleaning as necessary.
Routine cleaning and maintenance should include cleaning the automatic document feeder (ADF), the scanner glass, and the fan filters.
CAUTION: Avoid placing items that have sharp edges, paper clips, staples, wet glue, correction fluid, or other substances in the scanner. Document pages should not be curled, wrinkled, or stuck together.
Order maintenance and scanning supplies
You can purchase maintenance parts online. Items such as the feed roller replacement kit are available for worldwide delivery.
1.
Visit the HP scanner support Web site at www.hp.com/support.
2.
Select your country/region, and then select your language.
3.
Enter the scanner model number, and then press Enter.
Clean the automatic document feeder
The automatic document feeder (ADF) requires periodic maintenance depending on the amount of use and the type of paper that is fed through it. Clean the ADF under the following conditions:
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The ADF rollers are visibly dirty.
The ADF has trouble feeding documents.
Vertical streaks appear in images scanned by the ADF.
After scanning a document that is dusty, dirty, or has pencil writing on it through the ADF.
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.
1.
Press the Power switch to the off position, and then disconnect the USB cable and power cable from the scanner.
2.
Open the scanner lid.
18 Care and maintenance
3.
Clean the clear scanning strip on the scanner bed. Wipe the clear area with a clean, damp, lint-free cloth.
4.
Close the scanner lid.
5.
Lift the latch on top of the ADF to open the top and side ADF access doors.
Clean the automatic document feeder 19
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Locate the white strip on the side ADF access door and the clear scan window inside the ADF. Wipe both of these areas clean with a clean, damp, lint-free cloth.
7.
Wipe the ADF rollers with a clean, damp, lint-free cloth.
20 Care and maintenance
8.
Wait several minutes for the rollers to dry, and then close the ADF access doors.
9.
Reconnect the USB cable and power cable to the scanner, and then press the Power switch to the on position.
Clean the scanner glass
Clean the scanner glass under the following conditions:
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Streaks, scratches, or spots appear in images scanned from the scanner glass.
After scanning a document that is dusty or dirty from the scanner glass.
The environment is dusty.
To clean the scanner glass, 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 scanner lid.
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.
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Dry the glass with a dry, soft, lint-free cloth.
5.
Reconnect the USB cable and power cable to the scanner, and then press the Power switch to the on position.
NOTE: If cleaning the top surface of the glass does not remove all dirt and smudges from the glass, you can also clean the underside of the glass. Cleaning the underside of the glass requires that you disassemble the scanner. For instructions on how to clean the underside of the scanner glass, go to www.hp.com/support.
Clean the scanner fan filters
The scanner includes two customer-accessible fan filters. These filters prevent dust and debris from entering the fans. If the scanner is in a dirty or dusty environment, clean the filters monthly.
For each fan filter, 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.
Remove the filter cover.
3.
Clean the filter in one of the following ways:
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Use compressed air to blow the debris off of the filter.
Use a vacuum to remove the debris from the filter.
Rinse the filter with water.
Clean the scanner fan filters 21
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NOTE: If the filter is damaged, replace it with a new filter. To order a replacement part, go to www.hp.com/support
4.
Inspect the filter cover. If it is dirty, use a clean, damp, lint-free cloth to remove the dirt.
5.
Ensure that the filter and the filter cover are completely dry.
CAUTION: A wet filter can damage the scanner.
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Place the clean, dry filter in the filter cover, and then replace the cover on the scanner.
7.
Reconnect the USB cable and power cable to the scanner, and then press the Power switch to the on position.
Replace the feed roller and separation pad
Replace the feed roller and separation pad under either of the following conditions:
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Streaks on scans or paper jams occur repeatedly and cleaning the automatic document feeder does not help.
The HP Scanner Tools Utility Maintenance tab indicates that maintenance is due.
The feed roller replacement kit contains a feed roller and installation instructions. The separation pad replacement kit contains a separation pad and installation instructions. To order replacement kits, go to www.hp.com/support.
1.
Press the Power switch to the off position, and then disconnect the USB cable and power cable from the scanner.
2.
Inspect and clean the two customer-accessible fan filters.
3.
Open the top ADF access door, and then replace the feed roller and separation pad as described in the installation instructions that were included with the replacement kits.
4.
Close all ADF access doors, and then reconnect the USB cable and power cable to the scanner.
5.
Press the Power switch to the on position, and then update the scanner maintenance history:
a.
Press the Tools ( ) button on the scanner front panel to open the HP Scanner Tools Utility. Click the
Maintenance tab.
b.
In the Feed Roller Maintenance and Separation Pad Maintenance sections, click Record
Replacement.
For more information, see the HP Scanner Tools Utility help.
See also
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HP Scanner Tools Utility scanner maintenance information
The Maintenance tab of the HP Scanner Tools Utility displays the scanner usage and maintenance history. You can use this tab to record scanner maintenance.
The Imprinter tab of the HP Scanner Tools Utility displays information about the scanner imprinter and the imprinter print cartridge. You can use this tab to record that the print cartridge has been replaced.
To open the HP Scanner Tools Utility, press the Tools button on the scanner front panel.
22 Care and maintenance
For detailed information on using the HP Scanner Tools Utility, see the HP Scanner Tools Utility help.
HP Scanner Tools Utility scanner maintenance information 23

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