Canon imageFORMULA DR-6030C DR-6030C User Manual - Page 58

Other Functions, Double Feed Detection Function

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7. Other Functions This scanner also supports the scanning functions described below. Double Feed Detection Function P. 52 Skew Detection Function P. 53 Long Document Mode P. 53 Standby Mode Settings P. 59 MultiStream Function P. 60 Auto Power OFF Function P. 60 Double Feed Detection Function The scanner is equipped with a [Double Feed Detection] function that automatically detects when two or more documents are fed at the same time (double feed) while doing continuous scanning. There are two methods for multiple feed detection as shown below, the detection method is selected by the "ISIS/TWAIN driver". Detecting Double Feed by Document Length This detection method is effective when scanning a document on pages that are all the same size. The length of the first page scanned is used as a standard against which the rest of the pages are compared. If any page is 1.96" (50 mm) longer or shorter than the first page it is considered a double feed and scanning stops. Detecting Double Feed with Ultrasonic Waves This detection method is effective when scanning a document on pages that are different sizes. Ultrasonic waves are used to detect pages that are fed at the same time as well as the space between pages. Scanning stops if they are detected. Note • Ultrasonic double feed detection works when the documents overlap by 1.96" (50 mm) or more. • If the documents are stuck together with static electricity, the ultrasonic double feed detection will not correctly detect them as a double feed. 52 Using the Scanner

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52
Using the Scanner
7.
Other Functions
This scanner also supports the scanning functions described below.
Double Feed Detection Function
.......................................
P. 52
Skew Detection Function
...................................................
P. 53
Long Document Mode
........................................................
P. 53
Standby Mode Settings
......................................................
P. 59
MultiStream Function
.........................................................
P. 60
Auto Power OFF Function
..................................................
P. 60
Double Feed Detection Function
The scanner is equipped with a [Double Feed Detection] function that
automatically detects when two or more documents are fed at the same time
(double feed) while doing continuous scanning.
There are two methods for multiple feed detection as shown below, the
detection method is selected by the “ISIS/TWAIN driver”.
Detecting Double Feed by Document Length
This detection method is effective when scanning a document on pages that
are all the same size. The length of the first page scanned is used as a
standard against which the rest of the pages are compared. If any page is
1.96" (50 mm) longer or shorter than the first page it is considered a double
feed and scanning stops.
Detecting Double Feed with Ultrasonic Waves
This detection method is effective when scanning a document on pages that
are different sizes. Ultrasonic waves are used to detect pages that are fed at
the same time as well as the space between pages. Scanning stops if they are
detected.
Note
•
Ultrasonic double feed detection works when the documents overlap by
1.96" (50 mm) or more.
•
If the documents are stuck together with static electricity, the ultrasonic
double feed detection will not correctly detect them as a double feed.