Problem | The scanner power is switched OFF. |
Solution | Make sure that the scanner is switched ON. If the scanner is OFF, |
| turn the scanner ON. |
| (See "Chapter 2 Setup - Connecting the Scanner to the Computer," |
| on p.16.) |
Problem | The scanner does not support your USB interface. |
Solution | This product is not guaranteed to operate with all types of USB |
| interfaces. Contact your local authorized Canon dealer or service |
| representative for more information. |
Problem | The scanner does not support the USB cable. |
Solution | Use the USB cable provided with the scanner. |
|
|
Problem | The USB hub is not compatible with the scanner. |
Solution | Remove the USB hub. |
⋅Slow Scanning Speed
The following problems might cause the scanning speed to be slow. Check each possible cause.
Problem | Other applications are running in the background on your PC. |
Solution | Quit all other applications that are running. |
|
|
Problem | Resident applications, such as |
| memory resources. |
Solution | Quit all resident applications. |
|
|
Problem | Temporary files cannot be created in the TEMP folder, as there is |
| not enough free space on the hard disk. |
Solution | Delete unwanted files on the hard disk to increase free space on the |
| hard disk. |
|
|
Problem | The USB port you are using does not support |
Solution | Scanning speeds are slower if your computer's standard USB |
| interface is not compatible with |
| computer that is equipped with USB that is compatible with |
| |
|
|
Problem | The USB cable does not support |
Solution | Use the USB cable provided with the scanner. |
|
|
Problem | The USB hub does not support |
Solution | Remove the USB hub. |
⋅Scanning Is Not Performed
Check the following if the scanner does not scan an image even though the scanning operation is performed:
•Has the scanner been properly recognized by the computer?
•Has the scanner driver been installed?
•Has the application software been installed correctly? Has the application software been set up correctly?
•Is there a problem in the PC system?
IMPORTANT
• If documents are not scanned normally even if the scanner setup is OK, a probable cause is that the scanner driver or application software is not running correctly. Reinstall the scanner driver or application software.
• When system errors result in the scanner not functioning at all, turn OFF the scanner and wait at least 10 seconds before turning it ON again. If the error continues to occur, restart the computer.
• When scanning continues, make sure that the last document scanned was scanned correctly.
⋅Documents Do Not Feed Properly
The following are possible causes of a document failing to feed properly. Check each possible cause.
Problem | Static electricity is causing the pages of the document to stick |
| together, and they cannot be separated correctly by the scanner. |
Solution | Before you place your document, thoroughly fan the stack of pages. |
| (See "Feeding in the Page Separation Mode," on p.22.) |
|
|
Problem | Attempting to scan a document of a size, thickness, or weight that |
| the scanner cannot scan. |
Solution | Check the size, thickness, and weight of the document. For |
| information on the type of documents that you can use with the |
| scanner, see "1. Documents," on p.19. |
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