Double-side scanning method capable of fast measuring document's size
A double-sided scanning and file technology, applied in the field of double-sided scanning, can solve problems such as inconvenient use, inability to select printing paper size by the printing unit, and complicated control process
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[0013] figure 2 A flowchart showing the duplex scanning method of the present invention. The scanning method of the present invention is also applicable to the scanning device in FIG. 1 . like figure 2 As shown in FIG. 1 , first, as shown in step 210, it is a pre-turning step, which is used to pass the document P from the paper tray 102 through the first channel 104, the second channel 106, the scanning area 116 and the third channel. 108 is fed to the inverting area 112 after being reversed, and at the same time detects the size of the document P to generate a size signal. The dimensions of the document may include the length and / or width of the document. The document length can be determined by detecting the leading and trailing edges of the document.
[0014] Then, as shown in step 220, the document P is fed from the reversing area 112 through the scanning area 116 and reaches the reversing area 112 after being reversed, so that the scanning module 130 can scan the area...
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