Bedienungsanleitung Xerox DocuMate 4790 (Seite 190 von 211) (Englisch)

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Xerox DocuMate 4790

User’s Guide

190

Troubleshooting

Problem: The scanner won’t scan. What’s wrong?

Check for one of these possible problems:

• Are the cables loose or not plugged in securely? Inspect the cable connections. Make sure the

cables are plugged in securely.

• Is the scanner’s status light on? Turn on the scanner’s power. If the status light doesn’t come on,

plug the power supply into another electrical outlet. If you are using a UPS battery back-up or

power strip, try plugging the scanner directly to a wall outlet.

• Did you restart the computer and scanner? If the scanner gets a paper jam, or looses connection

because of an error, try restarting your computer and power cycling the scanner.

• Did you plug the scanner into a USB hub? If you’re using a USB hub to connect the scanner try

plugging the scanner’s USB cable directly to the back of the computer. It is not recommended that

you use the scanner with a USB hub, if you are using a hub, the hub must have its own power

supply.

• Is the USB cable 6’ or less? If you are using a USB cable that is longer than 6’ you may lose

connection to the scanner. The recommended USB cable length is 6’ or less, the USB cable

provided with your scanner is within this range.

• Did you select another image source in the scanning software? If you use multiple imaging

devices with your computer, such as a camera, all-in-one printer, or another scanner, you may have

selected another source for images. Make sure Xerox DocuMate 4790 is the selected scanner.

Problem: The scanned images are of poor quality. What do I do?

There are various reasons why the scanned image is of poor quality. The original document may not be

of good quality, the scanner glass may be dirty, or a shading adjustment may be needed.

• If the original is crinkled, torn, dirty or smudge, try scanning from the Kofax Virtual ReScan (VRS™)

software. VRS is a powerful image enhancement application that you can use to filter this type of

noise from the document during image processing. The resulting image is of a quality equal or

greater to the original.

• Try cleaning the scanner. The scanner glass is where the image is captured as the page is pulled

through the scanner. Lift up on the exit release, under the input tray, to open the scanner. There is

glass in the body of the scanner and underneath the lid. Take a soft cloth and wipe across both

pieces of glass. The section Cleaning the Scanner Glass and Background Plates on page 185

contains thorough instructions for cleaning this part of the scanner.

• If cleaning the glass does not improve the image quality, try performing a shading adjustment.

The shading adjustment recalibrates the scanner. Please see the section Shading Adjustment on

page 178 for instructions.

Problem: I got an “SVS001” error when installing Kofax VRS. What do I do?

The message “SVS001: The VRS installation does not install an ISIS driver for the scanner you selected.

Please install the ISIS driver packaged with your scanner.” is not an error message. Please click on OK to

finish the installation.

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