Troubleshooting | Canon 4.1 instruction

Troubleshooting

Please refer to the following information if you encounter a problem using Plug-in Module CS-U. For further details, refer to the Troubleshooting item on the CD- ROM provided with your scanner.

If your problem lies outside the solutions provided below, consult the retail outlet from which you purchased the software or the closest Canon Customer Support Help Desk.

Hint

•Before you call for assistance, read Quick Start Guide or Troubleshooting.

•When you contact one of the help desks listed, you will be asked what kind of computer is connected with the scanner. Before you call, make sure you have prepared the information required on the system information page in the Quick Start Guide.

Problem: The “Can’t use the driver required for a USB device. Search the Internet for a driver?” dialog displays on a system running Mac OS 9 (only applicable to Mac OS 9)

➤Solution: Scanner software has not been installed. Click the [Cancel] button to close the dialog. Detach the scanner, and install the required

software from the CanoScan Setup Utility CD-ROM before reattaching the scanner. (➜ Quick Start Guide)

Problem: Plug-in Module CS-U does not appear as an option on the menus of a plug-in compatible application program

➤Solution: Plug-in Module CS-U is not correctly installed on your hard disk

drive. Reinstall Plug-in Module CS-U. (➜ Quick Start Guide)


	Problem:	The image will not appear even if the Preview button is
		clicked on the Plug-in Module CS-U control panel

➤Solution 1: Make sure the original is set on the document glass correctly

➤Solution 2: The brightness settings for Plug-in Module CS-U may be set too high. Try lowering the brightness settings. For details about brightness setting, see Brightness and Contrast Settings (➜ p. 43)

➤Solution 3: The threshold setting for Plug-in Module CS-U may be set too high. Try lowering the threshold setting. For details about setting the threshold setting, see Adjusting Threshold Value (➜ p. 48)

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Canon 4.1 manual Troubleshooting

Contents

Users Guide When you open the box How to Make Best Use of the Manuals Where to Look How to Use this GuideAbout the Conventions Used in this Guide Table of Contents Adjusting Scanned Images Operating Environment Installing Plug-in Module CS-U Pp -20Image Size Control Panel Features E P Scanning Procedures Plug-in Module CS-U Special Features Quick Start Instructions Install Plug-in Module CS-UStart Plug-in Module CS-U p Position materials for scanning and preview them. p Specify the Area of the Image to be Scanned Verify Image Quality with the Browser Function beforeSelect the area to be scanned by clicking and dragging Mouse pointer over the image Save the Scanned Image Scan the ImageClick on the Scan button Save the image with Adobe Photoshop LE or other plug-in E P RGB Values Displaying the Plug-in Module CS-U Control Panel Operating Procedures Positioning Originals ProceduresPlace the original on the scanners document glass Click on the Preview button Previewing Selecting the Output Device Output Device Resolution= 720 dpi, Magnification= 100% Setting the Resolution and Magnification Set the desired magnification factor on the control panel To Set the Magnification Factor Setting the Scan Mode Select a scan mode from the pop-up menu Click the arrow beside Scan Mode To Verify the Image Verifying the Image before Scanning Use these buttons to rotate the image Rotating the Image Output Device Setting PreferencesAspect Ratio Preview Window Unit Shut off lamp time Reset Default SettingsClose Plug-in After Scan Platen/Film Operating Procedures Scanning Position the pointer in the preview window Setting the Scan Area Zooming Procedures to ZoomSelect the area you want to enlarge with the zoom function Click on the Zoom In button To Initiate the Scan ScanningSpecify the Scan Area Click close box to guit the Plug-in Module CS-U Enter a name for the file and click the Save button Saving Scanned Images Scanning Film Save Exposure Data Auto Exposure Click on the Scan button Remove Dust and Scratches CanoScan D2400U only Black & White Bit/14/16bit Grayscale and 24-bit/42/48bit ColorBit Color Tone Adjustment Dialog Tone Adjustment How to Interpret Histograms Histogram Settings How to Adjust Histograms To Adjust a Histogram Shadow Mark Click on the OK button Manipulating the Graph Tone Curve Settings Click the OK button To Edit the Tone Curve Gamma Value = Relationship Between the Tone Curve Image Brightness Contrast Brightness and Contrast SettingsBrightness To Adjust the Brightness and Contrast Operating Procedure Adjusting the Color Balance Matching the Gamma Value to the Display Characteristics Gamma Value SettingsGamma value To Change the Gamma Value Settings To Set the Threshold Value Adjusting the Threshold Value To Set the Auto Tone Correction Auto Tone CorrectionRecommended ColorSync Open the Image menu and select Unsharp Mask Unsharp Mask Open the Image menu and select Descreen Descreen Select High-speed Scan Mode from the Image menu High-speed Scan Mode To Save Settings in a Settings File Saving/Recalling SettingsClick the Save button To Recall a Settings File Scanning Techniques Matching Scan Resolution to Purpose Appendices Troubleshooting Problem Scan button cannot be selected Problem Scanning is taking a long time Problem Scanning quality is poor Error Message Cause Error MessagesResponse Glossary Dot Color Grayscale Optical ResolutionHistogram Image File Pixel ResolutionPlug-in Software Preview Area Shadows Scan ModeThreshold Value Tone Curve Output device 7, 11, 18, 25 Index Scan 12, 33 Scan area 11 Canon U.S.A., INC Canon Customer Support Help Desk