Canon FB620U manual Stripes appear on scan of publication, Slow scanning speed

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Stripes appear on scan of publication

Cause:

Moiré effect from scan of publication at high resolution (print screen lines

 

highlighted by optical interference, producing striped patterns). The appear-

 

ance of this effect is dependent upon particular combinations of screen line

 

densities and scanning resolutions

Solution:

Rescan at different resolutions (See the ScanGear CS-U User’s Guide

 

electronic manual)

 

 

Whitened edges on image scanned from thick book

Cause:

Scanner employs an ultra-sensitive scanning unit that picks up ambient light if

 

document cover cannot stop light from entering around the edges of the book

Solution:

Cover the book and document glass with a dark cloth to prevent ambient

 

light from affecting the scan

 

 

Slow scanning speed

Cause:

Resolution is set higher than necessary

Solution:

Lower the resolution.

 

 

Other questions

Can a Film Adapter Unit be used with this scanner?

Answer: No

Can Automatic Document Feeder be used with this scanner?

Answer: No

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Contents GuideGuide This page intentionally left blank Organization of the Product Guide How to Use the Product GuideDisclaimer Conventions Used in this GuideTable of Contents Page Compact Footprint Features of the CanoScan FB620UPage About Locations Safety PrecautionsAbout the Power Supply General Handling Precautions Page Setup and Use Uneven or stepped surfaces High-temperature environments Sunlight Scanning Unit Components GuideUSB Connector Placement and Connection Connecting to the Computer Scanner Connected to Another USB Device About the USB Interface Lift the document cover Place the document Positioning the DocumentsPage Smart Button and ScanGear Toolbox CS How to Use the Start ButtonChanging the Start Button Functions Page Transporting the Scanner Lock Switch Position Appendices Troubleshooting Scanner Appears as an Unknown Device Not a Scanner Twain problem message is displayed Windows Installation is unsuccessfulUser’s Guide electonic manual Scanner not identified Problems with the ScannerScanner will not scan Problems with ScanningGlossy color photo will not scan clearly Scan quality is poorWhitened edges on image scanned from thick book Stripes appear on scan of publicationSlow scanning speed Can a Film Adapter Unit be used with this scanner?Care and Maintenance Outer Casing USB Major SpecificationsIndex Mail support via Canon Computer Systems, Inc Canon Technical SupportOE-018AA Canon INC