JPH0222958A - Image reader - Google Patents

Abstract

PURPOSE:To improve facility and operability by enabling an image to be read in by setting a reader as a sheet feeder type reader possible to surely read in a sheet shape original, and as a self-traveling type reader when it is desired to read in a book type or a large flat original. CONSTITUTION:The title reader is constituted of a main body 25, a start switch 26, a paper supply part 27, a connection cable 28, and a word processor main body 29. And the device functions as the sheet feeder type reader possible to surely read in the original in case of reading the sheet shape original, and functions as the self-traveling reader when it is desired to read in the book type or the large flat original, and also, it is enough to prepare only one connection cable 28 to the main body 25. In such a way, it is possible to make the device miniaturized and easy to use, and to improve the operability.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is for inputting figures to be inserted to explain the meaning of sentences created using word processors, personal computers, etc., or for inputting figures for image recognition such as OCR. This relates to the image reading device used.

BACKGROUND OF THE INVENTION In recent years, there has been a strong desire to insert graphics to make explanations easier to understand in texts created using word processors (hereinafter abbreviated as word processors), personal computers, and the like. However, the current situation is that there are no compact and easy-to-use reading devices on the market.

Hereinafter, conventional manual type and sheet feeder type image reading devices will be explained.

5(a), 5(b), and 5(c) are a front view, a top view, and a side view of a conventional manual image reading device, and FIG. 6 is a sectional view of Moom' in FIG. 5.

In Figure 6, 1 is the main body, 2 is the start switch, and 3
is the connection cable, and 4 is the word processor itself.

In FIG. 6, 5 is a cover glass, 6 is a mirror, 7 is a lens, 8 is a one-dimensional reading increase sensor 9 is an encoder 10 that generates a signal corresponding to the line period in the reading increase (sub-scanning) direction. 1 is a light source, 11 is a frame, and 12 is a cover.

The operation of the conventional image reading device configured as described above will be described below. By placing the main body 1 on the image of the original to be captured and pressing the start switch 2, the word processor main body 4 is informed to start capturing the image. Next, by manually pulling the main unit 1 toward you, the encoder e generates a cycle of every line, and connects the connecting cape/
A signal of one line period is sent to the word processor main body 4 through I/3.

A document image is illuminated by a light source 1o, passes through a cover glass 6, changes its optical path with a mirror 6, is focused by a lens 7, and is imaged on a one-dimensional reading sensor 8. The one-dimensional reading sensor 8 and encoder 9 asynchronously capture the signal of the document image for each line, and send it to the word processor main body 4 through the connection cape/
Transfer via L/3. On the side of the word processor main body 4, the signal of the original image is taken in every line at the rising edge or falling edge of the encoder 9 every line period.

7(a) and 7(b) are a front view and a side view of a conventional sheet feeder type image reading device, and FIG. 8 is a sectional view of the main part thereof. In Figure 7, 13 is the main body, 1
4 is a start switch, 16 is a connection cape μ, and 16 is a word processor main body.

In Figure 8, 17 is a cover glass and 1B is a mirror.
19 is a lens, 2o is a one-dimensional reading sensor, 21 is a light source, 22 is a paper feed roller, 23 is a frame, and 24 is a cover.

The operation of the conventional image reading device configured as described above will be described below. By inserting the original to be taken in between the paper feed roller 22 and the cover glass 170 of the main body 13 and pressing the start switch 14, the start of image addition to the word processor main body 16 is notified. Subsequently, the document is conveyed by the paper feed roller 22. The original image is illuminated by a light source 21, passes through a cover glass 17, changes the optical path with a mirror 18, is focused by a lens 19, and is sent to a one-dimensional reading sensor 2.
Focuses on 0. The signal of the original image for each line increased in synchronization with the paper feed roller 22 is transferred to the word processor main body 16 through the connecting cape 1v15. Word processor body 16
On the side, the signal of the original image is captured line by line at the rise or fall of the synchronization signal line by line.

Problems to be Solved by the Invention However, in the above-mentioned manual type configuration, reading in the sub-scanning direction depends on the skill level of the operator, and reliable reading cannot always be performed.

Further, with the above-described sheet feeder type configuration, even if one wanted to read a book or a large flat document, it was not possible to read it.

The present invention solves the above conventional problems, and functions as a sheet feeder type that can reliably read sheet documents, and functions as a self-propelled type when reading books or large flat documents. An object of the present invention is to provide a miniaturized image reading device having only one connecting cape μ to a main body.

Means for Solving the Problem In order to achieve this object, there is provided a main body in which an image reading unit, a driving unit, and a scanning unit are integrally constructed, and a main body connected to the main body and driven by the driving unit. It has a configuration including a paper feeding section.

Function: With this configuration, when the original is in sheet form, the image is read as a sheet feeder type that can be read reliably.
When you want to read books or large flat manuscripts, it is very easy to use because it can read images as a self-propelled machine. And since there is only one cable connected to the main body, operability is very good.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

The marks in Fig. 1 and (b) are a front view and a side view of the image reading increaser in the first embodiment of the present invention, and Fig. 2 is the mark in Fig. 1.
It is a sectional view taken along line B-B' in the figure, and Figure 3 is a-c in Figure 1.
FIG. 4 is a DD/sectional view of FIG. 1.

In FIG. 1, 26 is a main body, 26 is a start switch, 27 is a paper feed section, 28 is a connection cable, and 29 is a word processor main body.

In Figure 2, 3o is a cover glass, 31 is a mirror,
32 is a lens, 33 is a one-dimensional reading sensor, 34 is a light source, 35 is a frame, and 36 is a cover.

In FIG. 3, 37 is a motor, 38 is a gear train on the main body side, 39 is a gear train on the paper feed section side, and 4° is a paper feed roller, and the motor 37 and the gear train 38 on the main body side form a driving section. A paper feeding section is formed by the paper feeding section side gear train 39 and the paper feeding roller 4o.

In FIG. 4, a scanning roller 41 is connected to the gear train 38 on the main body side and forms a scanning section.

The operation of the image reading device configured as described above will be described below.

First, when used as a self-propelled type, the main body 26 is placed on the image of the document to be captured and the start switch 26 is pressed to notify the word processor main body 29 to start capturing the image. Subsequently, the main body side gear train 38 and the scanning roller 41 are rotated by the motor 37 to move the main body 25 on the document. The original image is illuminated by a light source 34.

Pass through the cover glass 3o, change the optical path with the mirror 31,
The light is focused by a lens 32 and imaged on a one-dimensional reading sensor 33. Motor 3 from one-dimensional reading gun sensor 33
The signal of the original image captured line by line in synchronization with 7.
The data is transferred to the word processor main body 29 through the connection cable 28. On the side of the word processor main body 29, the signal of the original image is increased line by line at the rise or fall of the synchronization signal of the motor 37 for each line.

Also, when using it as a sheet feeder type, the main body 2
By inserting the document to be enlarged between the paper feed roller 40 of No. 6 and the cover glass 3°, and pressing the start switch 26, the start of image capture to the word processor main body 29 is notified. Subsequently, power is transmitted from the motor 37 inside the main body 25 to the paper feed unit side gear train 39 meshed with the main body side gear train 38 to rotate the paper feed roller 40 and convey the document. The original image is illuminated by a light source 34, passes through a cover glass 3o, changes its optical path with a mirror 31, is focused by a lens 32, and is imaged on a one-dimensional reading sensor 33. 1 taken from the one-dimensional reading friction sensor 33
The original image signal for each line is transferred to the word processor main body 29 through the connection cape A/28. On the side of the word processor main body 29, the signal of the original image is captured line by line at the rising edge or falling edge of the motor synchronization signal for each line.

In addition, as a second embodiment, when used as a sheet feeder type in the first embodiment, instead of using a motor synchronization signal as a one-line synchronization signal, an encoder signal is used to control the motor or main body side gear. An encoder is connected to the train, and the signal of the original image is captured line by line at the rising or falling edge of each line of the encoder.

Although only two mirrors are used for simplicity,
Needless to say, if a large number of sheets are used, the main body can be made even more compact.

Also, if the power supply capacity is insufficient due to the light source,
It goes without saying that if you connect the DC cable near the connector on the main unit side, the operability will not be compromised and you can use it as a general cable.

Furthermore, to make the explanation easier, I used a word processor as the main device, but it goes without saying that a pan-converter could also be used.

Effects of the Invention As is clear from the above embodiments, according to the present invention, it is possible to realize an image reading device that skillfully incorporates the advantages of the conventional manual type and sheet feeder type, and the operability is greatly improved. can be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the JR image reading device according to the first embodiment of the present invention. FIGS. 2 to 4 are sectional views of the same essential parts, and FIG. 5 is a block diagram of a conventional image reading device. , FIG. 6 is a sectional view of the same essential parts, FIG. 7 is a configuration diagram of another conventional example, and FIG.
The figure is a new view of the main part. 25...Main body, 27...Paper feed section, 29
・・・・・・Word processor body, 3T・・・・Motor, 4o・River/paper feed roller

Claims (2)

[Claims] (1) An image reading device comprising: a main body in which an image reading section, a driving section, and a scanning section are integrated; and a paper feeding section connected to the main body and driven by the driving section. . (2) A first image reading mode in which only the main body is used and the main body is moved by the scanning unit, and a second image reading mode in which the main body and the paper feed unit are connected and the document is transported by the drive unit. The image reading device according to claim 1, further comprising an image reading mode.