When the Scanned Image is Not Normal
If there is a problem in the scanned image (image is not sharp or stripes appear in the image), one of the following may be a probable cause. Check as follows and take the appropriate remedy.
Cause | The scanning glasses and rollers on the scanner are dirty. |
Remedy | Clean the scanning glasses and rollers. (See “Chapter 5 Daily |
| Cleaning” P. 75) |
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Cause | The scan conditions are inappropriate. |
Remedy | Check the brightness and other scanner settings. |
| If the scanned image is foggy or the document is not scanned at all, |
| a probable cause is that brightness is set too high. |
| If the scanned image appears dark, a probable cause is that the |
| brightness is set too low. |
| Also, check the settings on the driver and the application in use. |
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Cause | The driver or application does not run correctly. |
Remedy | If the document cannot be scanned correctly even if the scan |
| conditions are adjusted, a probable cause is that the driver or the |
| application is not functioning correctly. |
| |
| For details on how to install the driver, see the separate ISIS/ |
| TWAIN Driver Instructions. |
| For details on how to install the application, see the instruction |
| manual for the application in use. |
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Cause | Other causes |
Remedy | The computer may be correctly recognizing the scanner, and |
| scanning may not be possible with the driver and application |
| correctly installed. If this happens, a probable cause is that a SCSI |
| card not compatible with the computer is installed. This error |
| message is sometimes no longer output by turning synchronous |
| transfer in the scanner’s user mode OFF (See “Setting in the User |
| Mode” P. 56). If this does not rectify the problem, contact the |
| computer or SCSI card manufacturer. |
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If the above remedies do not rectify the problem, contact a Canon service department.
70When the Scanned Image is Not Normal
