Double-sided document scanner, and associated control method

A technology for scanners and documents, applied in the field of scanners, can solve the problems of large space trajectories, inability to scan small-size documents, increase of the distance L of the roller 7, etc., and achieve the effect of reducing space trajectories

Inactive Publication Date: 2013-04-17
SAGEMCOM DOCUMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, the aforementioned conventional solution has at least one disadvantage: the offset of the two sensors in the path direction X of the document 2 leads to an increase in the distance L between the rollers 7
[0016] State-of-the-art scanners have relatively large spatial trajectories and cannot scan small size documents

Method used

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  • Double-sided document scanner, and associated control method
  • Double-sided document scanner, and associated control method
  • Double-sided document scanner, and associated control method

Examples

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Embodiment Construction

[0031] figure 2 with image 3 A scanner according to the invention is shown schematically.

[0032] Scanners conventionally comprise rollers 7 driving the document 2 to be scanned, including the front and back sides. The roller 7 is mounted to rotate about an axis.

[0033] Expect to scan the front and back of document 2.

[0034] The scanner thus comprises a module 10 located on the front side of the document 2 and a module 11 located on the reverse side of the document 2 .

[0035] The modules 10 and 11 can be separate elements or integrated, and the modules 10 and 11 are of course arranged to enable the passage of the document 2 in the passage direction X.

[0036] In order to reduce the distance I between the axes of rotation of the rollers 7, each module 10 or 11 is placed substantially facing each other, that is to say with an overlapping area Δ with respect to the direction X, as figure 2 shown.

[0037] Preferably, each of the modules 10 and 11 is centered with...

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PUM

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Abstract

The invention relates to a scanner for scanning the front and back of a document (2), comprising: a module (10) located on the front side of the document (2) and comprising means (3) for illuminating the front of document; and a module (11) located on the back side of the document (2) and comprising a means (3) for illuminating the back of the document; wherein the scanner is characterized in that each module (10, 11) is located opposite the other module (10, 11), and in that said scanner further comprises a controller (6) that is connected to the illuminating means (3) of each module (10, 11) and that is capable of controlling the illuminating means (3) of each module (10, 11) such that the illuminating means (3) of the module (10) located on the front side of the document (2) illuminates the front of the document when the illuminating means of the module (11) located on the back side of the document (2) is not illuminating the back of the document, and vice versa. The invention also relates to a method for controlling such a scanner.

Description

technical field [0001] The invention relates to a scanner for double-sided scanning of documents, which includes a module with document front lighting on the front side of the document, and a module on the back side of the document with document back lighting. [0002] The invention also relates to a method of controlling the scanner. Background technique [0003] Known multifunction machines (eg, including copying, faxing or scanning functions) include scanners. [0004] Scanners for these machines traditionally consist of a module with an image sensor. [0005] Among these sensors, it is known that CIS (Contact Image Sensor) type image sensors are most commonly used because they provide very compact scanners. [0006] Such as Figure 1B As shown in the front view of , generally speaking, the CIS image sensor 100 of the module is an elongated box 1000 . [0007] Another example Figure 1A As shown in the cross-sectional view of , the sensor 100 includes a luminous body ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/028H04N1/203
CPCH04N1/203H04N1/02855H04N1/02865H04N1/12H04N1/193H04N1/2032H04N1/2034H04N1/40056
Inventor P·萨巴捷
Owner SAGEMCOM DOCUMENTS
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