Fujitsu 4530C Operator's Guide - Page 52
Detecting Double-Feeds, fi-4530CImage Scanner Operator's Guide
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2.8 Detecting Double-Feeds 3. Select the detection conditions from [Double Feed] under [ADF Option]. 2 SCANNING VARIOUS TYPES OF DOCUMENTS The following are the detection conditions None Double-feed detection is not performed Check overlapping The scanner uses a ultra sonic sensor to monitor the thickness of documents that are fed. It detects a double-feed by differences in document thickness when two or more document sheets are fed overlapping. Check length The scanner uses an optical sensor to monitor the length of documents that are fed. It detects a doublefeed by differences in the document length when two or more document sheets are fed overlapping. Check overlapping The scanner monitors both document thickness and and length length to detect double-feeds. Furthermore, refer to "6.5 Double-feed Detection Conditions" on page 108 for detailed information about the document for double-feed detection. 4. Click the [OK] button. The display returns to the [TWAIN Driver] dialogbox. Then, perform the scanning operation on the dialogbox. fi-4530CImage Scanner Operator's Guide 47
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