Xerox Documate 3920 User Guide

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8Maintenance
This chapter includes:
•Safety Precautions on page 112
•Clearing Paper Jams on page 113
•Cleaning the Scanner on page 114
•Replacing the ADF Pad Assembly on page 117
•Replacing the Roller Assembly on page 121
•Xerox DocuMate 3920 Scanner Specifications on page 123
•Xerox DocuMate 3920 Parts List on page 124
This section contains information about maintenance, troubleshooting, scanner specifications, and 
spare parts. 

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Safety Precautions
When servicing the scanner you should take the following precautions to ensure your safety and 
prevent damage to the scanner.
Do These
• Wear protective gloves when cleaning the scanner with rubbing alcohol. Rubbing alcohol may 
irritate sensitive skin.
• Only perform scanner maintenance as described in this chapter.
• Keep the scanner and cleaning supplies away from any open flame or heat source as any form of 
alcohol is flammable.
• Always read...

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Clearing Paper Jams
If your scanner stops scanning due to a paper jam in the Automatic Document Feeder, a warning 
dialog box opens after a few moments.
1. Open the Automatic Document Feeder cover. 
2. Remove the jammed paper and close the cover.
To reduce the number of paper jams, smooth and straighten paper before scanning, adjust the guides 
to the paper size, and insert the paper evenly into the ADF.
NOTE: If the jammed page is too far in the scanner to be removed...

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Cleaning the Scanner
Regular maintenance of your scanner can help to ensure continual optimal performance.
Cleaning the Automatic Document Feeder
You may need to clean the ADF feed mechanism if documents do not feed easily into the ADF, or 
several feed in at the same time.
To clean the ADF:
1. Wet a soft cloth with some Isopropyl alcohol (rubbing alcohol).
2. Open the ADF cover.
3. Wipe the feed roller from side to side. Rotate the roller to clean its entire...

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4. Wipe clean the ADF pad, ADF pad housing, and traction pad.
5. Close the cover when you’re finished.
Cleaning the Scanner Glass
Scanning items that have excessive amounts of dirt or dust may dirty the glass. To ensure the best 
quality scanned item, wipe the scanner glass with a soft, dry, clean cloth to rid the glass of dust or other 
debris.
If any residue remains after wiping the glass with a dry cloth, try adding a few drops of Isopropyl 
alcohol (rubbing...

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Cleaning the LCD-display
To clean the display surface, use a soft lint-free cloth, either dry or moistened with neutral detergent or 
ethanol. Do not use any organic solvents, acid, nor alkali solution. 

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Replacing the ADF Pad Assembly
The ADF pad may wear out and is designed to be a user-replaceable part. Problems with documents 
feeding into the ADF is an indication that the pad is wearing out. You should first clean the ADF 
following the instructions in the previous section Cleaning the Automatic Document Feeder on 
page 114.
You can order replacement ADF pad assemblies from the Parts & Accessories page for your scanner at 
www.xeroxscanners.com. Please refer to the...

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2. Press in the top of the ADF pad housing and lift up to release the housing from the scanner. Rotate 
the housing up and out of the scanner.
3. Squeeze the plastic clamps that hold the ADF pad in place and lift the pad up and out of the 
scanner.
4. Remove the tension spring. 

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5. Place your fingertip under the top edge of the traction pad and pull up. The traction pad is held in 
place by two tabs on the underside of the pad, you will hear a “click” when it releases from the 
scanner.
6. Place the new traction pad in the scanner. Align the tabs on the bottom of the traction pad with 
the slots in the scanner. Press down on the pad to snap the part into the scanner.
7. Place the new tension spring in the slot in the scanner.
Slots for the...

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8. Place the new ADF pad in the scanner and press down on the pad to snap it in place.
9. Place the arms of the ADF pad housing in the housing slots in the scanner, then rotate the housing 
down into place. Press down on the end of the housing to snap the housing in place. Note that the 
end of the housing piece will be held up slightly by the tension spring. 
10. Close the cover when you are finished.