Canon imageFORMULA CR-50 CR-50/80 Instruction Manual - Page 40

Troubleshooting This chapter describes the problems that might occur in the CR-50/80, and how to remedy them. When the Scanner Is Not Recognized The following causes and remedies describe why your computer may not recognize the scanner. Cause The Scanning Utility is not installed. Remedy Install the Scanning Utility before connecting the scanner to the computer. (See "Setting Up the Scanner," on p. 17.) Cause The scanner is not correctly connected to the computer. Remedy Connect the scanner to the computer correctly. (See "Connecting the Scanner to a Computer," on p. 21.) Cause The USB interface provided as standard with your computer is not compatible with the scanner. Remedy Not all USB interfaces provided as standard with personal computers are guaranteed. Contact your local authorized Canon dealer for more detailed information. (See "Checking Your Operating Environment," on p. 18.) Cause USB cable is not compatible with the scanner. Remedy Use the USB cable provided with the scanner. (See "Checking Your Operating Environment," on p. 18.) Cause USB hub is not compatible with the scanner. Remedy Remove the USB hub to use the scanner. (See "Checking Your Operating Environment," on p. 18.) Clearing Paper Jams If paper has jammed, open the Maintenance Cover and remove the jammed paper. IMPORTANT Do not attempt to pull the jammed paper upwards or backwards against the feeding direction. Doing so can damage the internal parts of the scanner. CAUTION • Be careful when you clear a paper jam. You may be injured unexpectedly. For example, the paper edges may cut your fingers, or the document may be damaged. • Remove all jammed sheets of paper. Paper scraps left inside the scanner may cause a paper jam or malfunction. A Hook your finger around the open lever and open the Maintenance Cover. 40