Canon DR-2050C manual PC Does Not Recognize the Scanner, Scanning Is Slow

Page 72

The PC Does Not Recognize the Scanner

The following are possible causes of the PC failing to recognize the scanner. Check each possible cause.

Cause

The scanner is not connected correctly.

Remedy

Check the USB cable connections between the scanner and the

 

PC. (See p. 21.)

 

 

Cause

The USB 2.0 interface card is not inserted in the PC

 

correctly.

Remedy

Reseat the USB 2.0 interface card in the PC correctly, referring to

 

the instruction manual for the USB 2.0 interface card. Also,

 

confirm whether the USB interface card is recognized by the

 

operating system you are using.

 

 

Cause

The scanner is not ON.

Remedy

Refer to “The Scanner Does Not Turn On,” on p. 67 and make

 

sure that the scanner is turned ON. If the scanner is not turned

 

ON, turn it ON. (See p. 22.)

 

 

Cause

The USB 2.0 interface card does not support the scanner.

Remedy

Use the recommended USB 2.0 interface card. (See p. 19.)

 

 

Cause

The scanner does not support the USB cable.

Remedy

Use the USB cable provided with the scanner. (See p. 21.)

 

 

Cause

The scanner does not support the USB HUB.

Remedy

Remove the USB HUB to use the scanner. (See p. 21.)

 

 

Scanning Is Slow

The following problems might cause the scanner to be slow. Try the solutions according to the problem.

Cause

The USB 2.0 interface card does not support Hi-Speed 2.0.

Remedy

Use the recommended USB 2.0 interface card. (See p. 19.)

 

 

Cause

The USB 2.0 interface cable does not support Hi-Speed 2.0.

Remedy

Use the USB cable provided with the scanner. (See p. 21.)

 

 

Cause

The USB HUB does not support Hi-Speed 2.0.

Remedy

Remove the HUB or replace it with one that supports

 

HI-Speed 2.0. (See p. 21.)

 

 

68Troubleshooting

Image 72
Contents Document Scanner International Energy Star Office Equipment Program Read Carefully Before Opening the Sealed Disk Package Page Introduction Manuals for the ScannerConventions Contents Before Using the Scanner Installation LocationSafe Operation Power Moving the ScannerNormal Handling Disposal Features of the DR-2050C Compact ConfigurationCompatible with Carbonless Duplicating Paper Checking the Packing List CD-ROMFeed Roller Removing the Protective Packing Materials Before Using the Scanner Names and Functions of Parts Front/Right SideFront Upper Cover and Document Feed Tray open Back/Left Side ConventionsInstalling the Scanner Installation RequirementsInstalling the Scanner Installation Procedure Interface Cards Recommended USB 2.0 Interface CardsConnecting the Power Cord Connecting the Scanner to Your PC Turning the Power ON/OFF Turning the Power onRecognizing the Scanner Installing the Scanner Turning the Power OFF Installing the Software ISIS/TWAIN DriverInstalling the ISIS/TWAIN Driver Installing the Software Installing the Software Installing CapturePerfect Installing the Software Installing the Software Uninstalling Software Installing the Software Installing the Software Using the Software Using the ISIS/TWAIN DriverUsing CapturePerfect Starting CapturePerfectUsing the Software Using the Software Starting CapturePerfect with the Event Function Confirming Scanner EventUsing the Software Using the Scanner DocumentsSetting Up the Document Feed Tray Preparing the TraysUsing the Document Guide Adapter Using the Feed Extension PlateHow to Feed with the Page Separation Mode Placing a Document for Scanning1234 Using the Scanner How to Feed with the Bypass Mode Using the Scanner Clearing a Paper Jam Using the Scanner Other Functions Scanning Folio Folded DocumentRegular Maintenance Cleaning the ScannerCleaning Inside the Scanner Cleaning the Sensor Glass and the Rollers Regular Maintenance Cleaning the Metal Rollers Roller Replacement Cycle Removing and Attaching the RollersResetting the Counter Regular Maintenance Removing and Attaching the Feed Roller Attaching the Feed Roller Regular Maintenance Regular Maintenance Removing and Attaching the Retard Roller Attaching the Retard Roller Regular Maintenance Troubleshooting Scanner Does Not Turn onPC Does Not Recognize the Scanner Scanning Is SlowImages Are Not Scanned Documents Do Not Feed ProperlyPaper is not ejected correctly Resulting Scanned Images Are Not Correct Adjusting the Scanner Specifications Scanning Document SpecificationsAC Adaptor 100 Units inches units in parentheses are millimeters Cleaning IndexMemo Memo Model Names PUB.CE-IE-464
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