Xerox Documate 4790 User Guide

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide9-163
Replacing the Rollers
Frequent paper jams are a symptom of a worn roller assembly. A worn roller can cause documents to feed in 
skewed at an angle, or multiple pages to feed at the same time. A worn roller should be replaced to avoid 
damage to the scanner’s internal parts. Before replacing the roller you should clean it as excessive dust on the 
roller will make it appear worn and smooth. You cannot properly...

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide 9-164
Replacing the Feed Roller Module
1. Pull the locking lever on the left side of the feed roller module down from the scanner. This releases the roller 
module from the scanner.
2. Carefully remove the roller module from the scanner. Discard the roller module, it cannot be repaired or 
reused.
3. Take the new roller module out of its packaging.
4. Align the end of the plastic end on the right side of the roller...

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide9-165 5. Insert the right side of the roller module into the scanner, then carefully angle the left of the roller module 
into the scanner. Be careful while inserting the roller module as the gears will engage as you place the 
module in the scanner.
6. Gently lift and hold the roller module in the scanner and then rotate the locking arm up and into the scanner. 
Make sure the roller module is securely in place before...

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide 9-166 2. Carefully pull and hold the black tab on the left side of the roller away from the bar.
3. Gently lift the left side of the roller bar up and then pull the roller out of the scanner toward the left, releasing 
the roller from the gears on the right side of the compartment. 
4. Discard the roller, it cannot be repaired or reused.
5. Take the roller out of its packaging.
6. Align the plastic gear end on the right...

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide9-167 8. Press gently on the metal bar on the left side to lock the roller in place with the black tab in the 
compartment.
9. Place the roller compartment cover in the scanner and lower it into place.
10. Press gently on the compartment cover to lock in the scanner. Make sure this cover is fully closed as it may 
break and cause damage to the scanner if it is not properly in place.
Installing an Imprinter
An imprinter...

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide 9-168 2. Open the pre-imprinter door.
3. Insert the pins on the right side of the imprinter unit into the holes on the scanner. Angle the imprinter down 
into the scanner until the pins on the left side line up with the slots in the scanner. Gently press down on the 
imprinter unit until it clicks in place.
4. Connect the cable to the connection port in the scanner.
5. Close the pre-imprinter door when you are finished....

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide9-169 5. Insert the ink cartridge into the carriage as shown in the diagram.
6. Lower the arms on the carriage to lock the ink cartridge in place.
7. Reverse this procedure to remove the ink cartridge when it is time to be replaced.
Adjusting the Printing Position
You set the horizontal start position by moving the ink carriage in the imprinter unit itself. Move the ink carriage 
left or right and align the arrow tab to...

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide 9-170
User Utility
The User Utility is a software program designed to help maintain and troubleshoot your Xerox scanner.
On installation you were prompted to place an icon on your Windows desktop. If you selected yes, simply double-
click on the user utility icon to open the software. 
If you do not have the User Utility icon on your desktop, follow these instructions for opening the utility from the 
Windows programs...

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide9-171 •Buzzer Setting: clicking this button opens a window for you to turn on or off the scanner beep sounds.
•User Shading: clicking on this button initiates the shading adjustment utility. The shading adjustment helps 
to improve image quality of scanned documents. Please see Shading Adjustment on page 174 for 
instructions.
•Caution Setting: clicking this button opens a window for you to set when to receive a notice...

Scanner Options, Maintenance and Troubleshooting
Xerox
® DocuMate® 4790
User’s Guide 9-172 If you are unable to resolve the issue using the troubleshooting steps in this table, please refer to the section 
Troubleshooting on page 185.
Error 
Code
MessageCauseResolution
U11
U12
U13
U14
U15
U16
U17
U18Paper Jam and Paper 
Remains in Scanner 
errors.Paper has jammed while 
being fed through the 
scanner. 
Document sensors are 
dirty.Open the scanner, remove the pages, then 
close the scanner. Please see...