Xerox xerox documate refer to Cleaning the Inside of the Scanner, of the Scanner on page, Error

Scanner Options, Maintenance and Troubleshooting

Error
Code	Message	Cause	Resolution
Fxx	System error occurred.	An unknown system	Reset the scanner and computer:
		error has occurred.	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 Technical
			Support Card you received with the scanner for
			contact information.
—	**Warning**	The number next to	The rollers should be cleaned every 20,000
	The rollers need to be	After Clean Roller:, in	scans, or as needed if your scanner is
	cleaned.	the User Utility main	experiencing frequent paper feed issues. After
		screen, has exceeded the	cleaning the rollers click on Clear Counter to
		maximum number	reset the cleaning roller count back to 0. Please
		between cleaning.	refer to Cleaning the Inside of the Scanner
			on page 178.
—	**Warning**	The number next to	The rollers should be replaced every 400,000
	The rollers need to be	After Replace Roller:, in	scans, or as needed if cleaning the rollers does
	replaced.	the User Utility main	not improve paper feeding issues. After
		screen, has exceeded the	replacing the rollers click on Clear Counter to
		maximum number	reset the roller replacement count back to 0.
		between replacement.
—	**Warning**	Either the lamp is not	Contact Xerox Technical Support or your
	Insufficient front light	bright enough or the	authorized service technician. Please refer to
		scanning sensor is not	the Technical Support Card you received with
	error occurred.
		registering the light	the scanner for Xerox contact information.
	Insufficient back light
		strength.
	error occurred.
—	**Warning**	The front or back	Clean the background reference plates as
	The front reference	scanning background	described in the section Cleaning the Inside
	plate is dirty.	plate is dirty.	of the Scanner on page 178.
	The back reference
	plate is dirty.
—	**Warning**	The image sensor cover	Clean the image sensor as described in the
	The scanner’s image	in the scanner is dirty.	section Cleaning the Inside of the Scanner
	sensor cover is dirty		on page 178.
	and requires routine
	cleaning.
—	**Warning**	The power is off, the	Verify cables are securely plugged into the
	Scanner is not	power cord or USB cable	scanner, computer and wall. If needed, reboot
		is unplugged.	the computer.
	connected.

Xerox® DocuMate® 4790	9-173
User’s Guide