Canon DR-7580 Instructions Manual

Also see for 8926A002: Brochure & specs

Contents

Canon DR-7580 Instructions Manual Manual pdf 78 page image

74Chapter 6 TroubleshootingWhen the Scanned ImageIs Not NormalIf there is a problem on the scanned image (image is not sharp or stripes appearon the image), one of the following may be a probable cause. Check the followingand take the appropriate action.● The scanning glasses or rollers in the scanner are dirty.If the scanning glasses or rollers in the scanner are dirty, that dirt will appearon the scanned image.➝ Clean the scanning glasses and rollers. For details, see “Daily Cleaning,”on p.80.● The scan conditions are inappropriate.When the scan condition setup is inappropriate, the scanned image will not besharp or will appear darkish.➝ Check the brightness and other scanner settings.If the scanned image is foggy or the document is not scanned at all, aprobable cause is that brightness is set too high.If the scanned image appears darkish, a probable cause is that thebrightness is set too low.Also, check the settings on the driver and the application.● The driver or application does not run correctly.If the document cannot be scanned correctly even if the scan conditions areadjusted, a probable cause is that the driver or the application is notfunctioning correctly.➝ Reinstall the driver or application.For details on how to install the driver, see Chapter 3, “Software.”For details on how to install the application, see the instruction manual forthe application in use.● Other CausesEven if the computer is correctly recognizing the scanner and the driver andthe application is installed correctly, scanning may not be performed correctly.A probable cause is that the interface card is not compatible. Use therecommended interface card.If the above remedies do not rectify the problem, contact your servicerepresentative.