Scanning device and scanning method

Abstract

The invention relates to a scanning device and a scanning method. The scanning device comprises a first scanning part, a second scanning part, a first light-transmitting plate and a correcting part, wherein the first light-transmitting plate is used for bearing documents to be scanned and is arranged between the first scanning part and the second scanning part; the correcting part is used for correcting the first scanning part and the second scanning part and is provided with a first surface and a second surface which are opposite; opposite to the first scanning part, the movable second scanning part is provided with a first position and a second position; when the second scanning part is positioned at the first position, the first scanning part and the second scanning part carry out double-surface scanning on the documents to be scanned; when the second scanning part is positioned at the second position, the first surface of the correcting part corrects the first scanning part, and the second surface of the correcting part corrects the second scanning part. According to the scanning device, one correcting part can be utilized for correcting the first scanning part and the second scanning part simultaneously, so that not only is the cost saved, but also the introduction of correction errors can be reduced.

Description

technical field [0001] The present invention relates to a scanning device and a scanning method using the scanning device, in particular to a scanning device with a double-sided scanning function and a scanning method thereof. Background technique [0002] The scanning device has become one of the essential office equipment. The scanning device needs to perform white reference calibration regularly or before each work. The white reference calibration is to test the product due to various reasons by scanning the white reference sample. For the change of the output value, the compensation coefficient is obtained by calculating the change of the output value, and then the change of the scanning device scanning the same image output is compensated by the compensation algorithm. The existing devices with double-sided scanning function are equipped with two calibration sheets to correct the color, brightness, contrast, etc. of the two scanning modules respectively, such as US2006 / ...

AI Technical Summary

Problems solved by technology

However, there may be some differences in the benchmarks of the two calibration sheets used, resulting in inconsistent calibration benchmarks of the two scanning modules; it is also possible that the calibration sheets are pasted on the glass platform, because one of the calibration sheets is stained with dust or Foreign matter will cause stains on the calibration sheet, which will cause the calibration standards of the two calibration sheets to be inconsistent, and finally cause differences between the front and back of the scanned document

[0003] In addition, the use of two calibration sheets not only makes it difficult to reduce production costs, but also ensures that the benchmarks of the two calibration sheets are consistent. Therefore, the process from selection to pasting needs to be very precise, consuming more material and manpower

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