Continuous paper feed scanning method and continuous paper feed device

Abstract

The invention relates to continuous paper-feeding, scanning method and continuous paper-feeding device. The continuous paper-feeding device and scanning device are employed in the inventive method. A paper-picking roller and paper-separating roller of continuous paper-feeding device rotates forward, paper-picking roller picks scanning piece from stacked paper and paper is separated by paper-separating roller; when front end of scanning piece gets to scanning device, paper-picking roller stops rotating, paper-separating roller continues to rotate forward, scanning roller of scanning device rotates to pick paper and scan; when scanning module completes scanning for the scanning piece, scanning roller stops rotating. The inventive continuous paper-feeding device can effectively avoid paper jam and scanning image defect during continuous paper-feeding, and prevent scratch and protect delicate scanning piece such as photo, accomplish good butt with portable scanner and automatic continuouspaper-feeding, properly extend function of portable scanner, provide convenience for portable scanner to process scanning image.

Description

technical field [0001] The invention belongs to the technical field of scanning technology and scanning device, and in particular relates to a continuous paper feeding scanning method suitable for small scanners to realize continuous paper feeding control, and a continuous paper feeding device capable of realizing continuous paper feeding. Background technique [0002] A scanner is an electronic input device widely used at present, and its key components include a scanning module and a mechanical transmission part. Due to the simple structure of the mechanical transmission part, the paper-fed scanner can realize a miniaturized design, making it a portable scanning input tool. A sheet-fed scanner generally adopts a method in which a CIS (Contact Image Sensor) is stationary relative to the scanner body, and scanned documents are scanned relative to the scanner body. This method is especially suitable for portable scanning devices with a relatively small size, and is used for ...

AI Technical Summary

Problems solved by technology

This type of scanner is very prone to accidents such as paper jams and scratches on the scanning surface of scanned documents during scanning operations.

If an external continuous feeding mechanism is used, since the feeding rollers of the feeding mechanism and the scanning rollers of the scanner cannot maintain a relatively consistent feeding speed, it is very easy to have multiple scanned copies caused by poor paper separation accuracy. If they enter the scanner together, the scanner jams, or there is an image deformation error or paper jam caused by the difference in the driving speed of the front and back of the scanned document. For photo scanned documents, it is also very easy to scratch the photo paper surface of the photo.

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