Troubleshooting

Common Problems and Solutions

This section provides recommended solutions to common problems. If you have a problem that is not solved by the following, contact your local authorized Canon dealer.

Problem 1 The flatbed will not turn ON.

Solutions

Confirm that the AC adapter is plugged firmly into a

 

power outlet.

Problem 2 The flatbed is not recognized.

Solutions

(1) Confirm that the flatbed is properly connected to the

 

computer with a USB cable.

 

(2) Confirm that the scanners (both the flatbed and the

 

connected Canon DR-series scanner) are turned

 

ON. If the flatbed is turned ON but the Canon

 

DR-series scanner is turned OFF, the flatbed will not

 

operate. See Problem 1 if the scanner does not turn

 

ON.

 

(3) The computer’s USB interface may not support the

 

flatbed. The flatbed cannot be guaranteed to work

 

with all USB interfaces.

 

(4) Confirm that the supplied USB cable is used to

 

connect the flatbed to the computer. The flatbed

 

cannot be guaranteed to work with all available USB

 

cables.

 

(5) If the flatbed is connected to the computer via a USB

 

hub, try removing the hub and connecting the flatbed

 

directly to the computer.

Problem 3 Dirt appears in scanned images.

Solution

Clean the scanning glass. If a sticky substance such as

 

glue or correction fluid is found, carefully wipe with just

 

enough pressure to clean the area where the lines

 

appear. If the problem cannot be solved by cleaning, the

internal glass may be scratched. In this case, contact your local authorized Canon dealer.

Problem 4 Text is not enhanced in scanned images, even

 

though [Text Enhanced Mode] is specified.

Solution

This flatbed only supports Advanced Text Enhancement

 

II. When you open the Canon DR-series scanner’s ISIS/

 

TWAIN driver settings dialog box from the flatbed’s ISIS/

 

TWAIN driver settings dialog box, you can specify text

 

enhancement modes other than Advanced Text

 

Enhancement II. However, Advanced Text

 

Enhancement II will always be used when scanning

 

from the flatbed. As a result, the text may not appear

 

enhanced depending on the document that was

 

scanned. To scan using the text enhancement mode

 

that you specified, place the document in the DR-series

 

scanner and scan.

Problem 5 The scanner is recognized by the computer, but

 

scanning does not start.

Solution

Check the position of the lock switch on the side of the

 

flatbed (See p. 11). If the lock switch is set to the locked

 

position, set it to the unlocked position.

Problem 6 Scanning is not performed using the registered user

 

preference settings.

Solution

User preferences in which feeding option, skip blank

 

page, continuous scanning, or prescan is enabled may

 

not be recalled properly by some applications. When

 

using such user preferences, make sure to open the

 

driver settings dialog box and verify that the settings are

 

enabled before you begin scanning.

Problem 7 The image rotation setting is enabled, but images

 

are not rotated (or the edges are cropped).

Solution

When the scanning resolution is set to a high value and

 

image rotation is set to 90 or 270 degrees, the entire

 

document may not be scanned properly. Set the image

 

rotation to 0 or 180 degrees and try scanning again.

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