Automatic sheet feeding device in two side scanning device

Abstract

The apparatus comprises a scan module, a paper-taken roller group, a first paper-out roller group, a second paper-out group, a first channel, a second channel, a third channel, a paper-feeding box, a first paper-out box and a second paper-out box. The invention uses said first paper-out box as a reversion area and mounts the scan module into the paper automatically-feeding unit so as to make the paper automatically-feeding unit to be used without needing to mate the flat-bed scanner.

Description

technical field [0001] The invention relates to an automatic paper feeding device, in particular to an automatic paper feeding device with double-sided scanning function. Background technique [0002] The duplex scanner can be used to scan images on both sides of a document. A general duplex scanning device includes a flatbed scanner and an automatic paper feeding device arranged on the flatbed scanner. There are two types of known duplex scanning devices. One is to scan one side of a document with a scanning module disposed in a flatbed scanner, and simultaneously scan the other side of a document with a scanning module disposed in an automatic document feeding device. The second is to use only the image scanning module in the flatbed scanner for duplex scanning. [0003] The first duplex scanner scans faster than the second duplex scanner, but typically costs more than the second duplex scanner because it requires two scanning modules. However, since the second type of ...

AI Technical Summary

Problems solved by technology

Since the double-sided scanner in FIG. 1 must use the scanning module installed in the flatbed scanner for scanning, the setting of the reserved area 120 cannot be avoided, so the length of the double-sided scanner 100 cannot be shortened.

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