3.Is the image quality displayed in the LCD suitable for the document? If not, set an image quality suitable for the document ( p. 6-2).

Image quality

100% LTR TEXT

PLAIN

Print media type

Problems scanning to a computer

See below if you have problems scanning a document to your computer from the machine.

Cannot scan a document.

1.Is there anything displayed in the LCD? If nothing is displayed, see p. 10-10.

2.Is the Alarm light blinking? If it is blinking, see p. 10-12.

3.Is there a warning or attention displayed in the Status Monitor? If displayed, see p.10-16.

4.Is the document loaded correctly?

Check that the document is loaded correctly on the platen glass ( p. 2-1).

5.Restart the computer.

6.If using a USB hub or repeater, try connecting the USB cable directly to the computer.

If you can scan when the USB cable is connected directly to the computer, the USB hub or repeater may be defective. Replace them.

7.After installing the MultiPASS Suite, did you install a TWAIN-compatible application?

If this is the case, the TWAIN system file is replaced with something inappropriate and you will be unable to scan images. If this happens, reinstall the MultiPASS Suite.

8.Is the machine recognized in the Scanners and Cameras Windows Control Panel (Windows XP only)?

Follow this procedure to check if Canon MultiPASS F20 scanner is in Scanners and Cameras:

1.On the Windows desktop, click [Start], then [Control Panel].

2.In the Control Panel window, click [Printers and Other Hardware], then [Scanners and Cameras].

3.If Canon MultiPASS F20 scanner is present, the machine is recognized. If not, remove the MultiPASS Suite and reinstall.

Computer has hung up or frozen.

1.Quit other open applications and try again.

Memory may be insufficient. Quit other open applications and try again.

2.Does the hard disk have enough available space?

Check that the hard disk has enough available space, in particular when scanning large documents at a high resolution. For example, a letter-size document scanned at 600 dpi, full color requires a minimum of 300 MB of space.

3.If an error occurs when scanning an image in Photoshop

Change the allocated memory. On the Edit menu, point to [References], then click [Memory & Image Cache]. Change the Physical Memory Usage to 10% or 20%.

4.Remove the MultiPASS Suite software and reinstall.

10-6

Troubleshooting

Chapter 10