Xerox DocuMate 4790 User Manual page 177

Error
Code Message
Fxx System error occurred.
— **Warning**
The rollers need to be
cleaned.
— **Warning**
The rollers need to be
replaced.
— **Warning**
Insufficient front light
error occurred.
Insufficient back light
error occurred.
— **Warning**
The front reference
plate is dirty.
The back reference
plate is dirty.
— **Warning**
The scanner's image
sensor cover is dirty
and requires routine
cleaning.
— **Warning**
Scanner is not con-
nected.
Cause
An unknown system error
has occurred.
The number next to
After Clean Roller:, in
the User Utility main
screen, has exceeded the
maximum number
between cleaning.
The number next to
After Replace Roller:, in
the User Utility main
screen, has exceeded the
maximum number
between replacement.
Either the lamp is not
bright enough or the
scanning sensor is not
registering the light
strength.
The front or back scan-
ning background plate is
dirty.
The image sensor cover
in the scanner is dirty.
The power is off, the
power cord or USB cable
is unplugged.
Resolution
Reset the scanner and computer:
1. Turn off the scanner power.
2. Unplug the USB cable and power from
the scanner.
3. Reboot (restart) the computer.
4. Plug the USB cable and power cable
back into the scanner.
5. Turn the scanner back on.
If you are still unable to scan, contact Xerox
Technical Support. Please refer to the Techni-
cal Support Card you received with the scan-
ner for contact information.
The rollers should be cleaned every 20,000
scans, or as needed if your scanner is experi-
encing frequent paper feed issues. After
cleaning the rollers click on Clear Counter to
reset the cleaning roller count back to 0.
Cleaning the Inside of the
Please refer to
Scanner
on page 183.
The rollers should be replaced every 300,000
scans, or as needed if cleaning the rollers
does not improve paper feeding issues. After
replacing the rollers click on Clear Counter to
reset the roller replacement count back to 0.
Contact Xerox Technical Support or your
authorized service technician. Please refer to
the Technical Support Card you received with
the scanner for Xerox contact information.
Clean the background reference plates as
Cleaning the
described in the section
Inside of the Scanner
on page 183.
Clean the image sensor as described in the
Cleaning the Inside of the Scan-
section
ner
on page 183.
Verify cables are securely plugged into the
scanner, computer and wall. If needed,
reboot the computer.
Xerox DocuMate 4790
User's Guide
177