Scanner

Abstract

The invention belongs to the technical field of scanners, and particularly relates to a scanner. The scanner comprises an objective table. A mounting cavity is formed in the objective table, a liftingadsorption device is arranged in the mounting cavity, and the lifting adsorption device is used for fixing scanned files or paper. The electric telescopic rod is arranged on the bottom end wall of the mounting cavity, and a lifting plate is supported at the top end of the electric telescopic rod. The lifting plate is formed by connecting a plurality of square plates in a sleeved mode, and a plurality of suction cups are arranged on the upper surfaces of the square plates. A connecting cavity is formed in the square plate, and an air suction pipe is arranged in the connecting cavity. The air suction pipe communicates with a sucker through an air guide pipe. The vacuum pump communicates with the air suction pipe through a telescopic air pipe and is arranged in the center of the mounting cavity. The air suction pipes arranged in the plurality of square plates are communicated through connecting pipes, The phenomenon that the paper tilts or curls when being flatly laid on the objective table is prevented, and then the clear and rapid scanning effect of the scanner on information on the paper is affected.

Description

technical field [0001] The invention belongs to the technical field of scanners, in particular to a scanner. Background technique [0002] A scanner is a device that uses photoelectric technology and digital processing technology to convert graphics or image information into digital signals in a scanning manner; scanners are usually used for computer peripheral equipment, by capturing images and converting them into computers that can be displayed and edited , digital input devices for storage and output. [0003] And existing scanner is when scanning some poor air permeability, and when folding for a long time, the paper under curling state, because air permeability poor paper has certain elasticity, paper air permeability is poor in long time folding, wrinkling and After curling, when the paper in this state is laid flat on the stage, it is prone to curling or warping, which will affect the normal and clear scanning of the information on the paper by the scanner. Conten...

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies of the prior art, the present invention proposes a scanner. The present invention is mainly used to solve the problem that the existing scanner scans some papers with poor air permeability and folded and curled for a long time. When the paper in this state is laid flat on the stage, it is prone to curling or warping, which will affect the normal and clear scanning of the information on the paper by the scanner

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