JPH03167958A - Document picture data reader - Google Patents

Abstract

PURPOSE:To allow a reader to work as an original moving type document picture reader and to move as an original standstill document picture reader and to attain accurate reading by dividing the reader into a sensor block and a roller block and connecting them with a turnable link member. CONSTITUTION:A sensor block 1 having an original read sensor 3 and a roller block 2 having a feed roller 4 moving an original are connected turnably with a hinge 5, and in a 1st state, the original read sensor 3 and the feed roller 4 are in contact with each other while being opposite to each other and an original 7 is inserted between them, the original is moved by the turning of the feed roller 4 and the picture data of the original 7 is read. In a 2nd state, the original read sensor 3 and the feed roller 4 are arranged almost in a same face and a read face of the original read sensor 3 is in contact with the original 7 placed on a plane and the original 7 is driven in itself with the turning of the feed roller 4.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a document image data reading device that enables the reading of image data of document originals having different shapes and dimensions with a device of 1. The present invention relates to a high-performance document image data reading device that can easily switch functions between a stationary document type and a stationary document type, and can be carried around.

[Summary of the invention]

The present invention relates to a document image data reading device that can easily switch functions between a moving document type and a stationary document type for reading document image data of different shapes and sizes with one device, and can be configured to be compact. The present invention provides a block having the sensor and the roller so that the document reading sensor and the document feed roller can take a first state in which they face each other and a second state in which they are located on substantially the same plane. The document image data reading device includes blocks that are connected to each other by a rotatable connecting member.

[Conventional technology]

There are two types of document image data reading devices used in facsimiles, etc.: one is a type in which a fixed part of the scanner (original reading sensor section) reads the document while it is moving (original moving type), and the other is a type in which a part of the scanner is read while the document is still. A format in which the document is read by moving it (a stationary document type) is known. Among the latter types, there is also known a self-propelled type in which the reading device itself moves while reading a stationary document.

In the case of the moving document type, document image data of a predetermined size can be read continuously, but there is a problem that it is not possible to read document documents that are bound such as magazines or documents that are drawn on large sheets of paper. .

In the case of a stationary manuscript type, it is possible to read magazines, etc., but there is a problem that the size of the whole scanner cannot be reduced because the line sensor moves within a frame of a fixed size. In addition, if the self-propelled type is used, it can be a small reader that performs sub-scanning manually, but the scanning speed is not constant,
Furthermore, it is difficult to scan in a straight line, and there is a possibility that the read image may differ from the original image.

In order to solve these problems, the present applicant proposed in Japanese Patent Application No. 1-48766 a document image data reading device that can be used both as a document moving type and as a document stationary type. In other words, in a document image data reading device, the bottom part that holds the paper feed mechanism that rotates with a power source can be removed, and if the bottom part is attached, the inserted document can be moved, and if the bottom part is removed, the paper can be moved. The feeding mechanism allows the reading sensor side to move stably on the reading surface of the document, and by making it possible to select between the document moving type and the document stationary type depending on the shape of the document, a single device can handle the shape of the document. This makes it possible to read image data of different document manuscripts.

However, even with the technology disclosed in Japanese Patent Application No. 1-48766, it is not easy to frequently switch between the document moving type and the document stationary type, and it is still large and difficult to handle when carried around as a portable type. There was a problem.

[Problem to be solved by the invention]

It is an object of the present invention to solve the problems described in the prior art and to obtain a compact document image reading device that can be easily switched between a moving document type and a stationary document type, and is also suitable as a portable type. do.

[Means for solving the problem]

The present invention includes a sensor block having a document reading sensor and a roller block having a feed roller for moving a document, and a first state in which the document reading sensor and the feed roller face each other, and a first state in which the document reading sensor and the feed roller face each other; The sensor block and the roller block are connected by a mutually rotatable connecting member so that a second state in which the reading sensor and the feed roller are located on substantially the same plane is possible. This is a document image data reading device.

[Effect]

In the present invention, the sensor block and the roller block are divided into the sensor block and the roller block, and are connected to each other by a rotatable connecting member, so that in the first state, the document is between the feed roller and the document reading sensor. A stationary original type which operates as a moving type reading device in which a document is sandwiched and fed by a feed roller, and in the second state, a document reading sensor placed on a stationary document moves by itself due to the rotation of the feed roller. operates as a reading device.

That is, the first state is suitable for efficiently reading a single-page original of a predetermined size or less, and the second state is suitable for reading, for example, divided reading of a large original or reading a flat part of a bound original. It is suitable for self-propelled scanning and more accurate reading than manual scanning.

Moreover, in the present invention, since the sensor block and the roller block are separated and connected, switching between the first state and the second state is easier than in the conventional reading device. Therefore, it is easy to make it small and easy to carry.

(Example) An example of the present invention will be explained according to FIG.
) is a perspective view showing the first state.

A sensor block having a document reading sensor 3 and a roller block having a feed roller 4 for moving the document are rotatably connected by a hinge (rotatable connecting member) 5, as shown in FIG. ) and the first state shown in
It is possible to take either of the second states shown in the figure. In the second state, the lock 6 allows the sensor block top and the roller rubber opening 1 to be connected in an open state.

In the first state, the document reading sensor 3 and the feed roller 4 are in a state where they can face each other and come into contact with each other, and the document 7 is inserted between them, and the document is moved by the rotation of the feed roller 4 and the document 7 is moved. image data is read.

The document reading sensor 3 is composed of a light source such as multiple OLEDs (light emitting diodes), a condensing lens, and a line sensor for reading reflected light from the document. I try to be as close as possible.

Next, in the second state, the document reading sensor 3 and the feed roller 4 are arranged on substantially the same surface, and the reading surface of the document reading sensor 3 is placed on a flat surface of the document 7.
The feed roller 4 is in contact with the roller block and slightly protrudes from the lower surface of the roller block. Although not shown, power is supplied through a flexible cord or a rechargeable battery is installed, making it suitable for self-propulsion. In addition, the weight is balanced evenly on both sides to prevent it from meandering when running on its own.

Further, the lock 6 may serve not only as a mechanical connection in the second state but also as a connector for connecting a power source or a signal line. In that case, in the first state, the locks separated vertically are connected by a cable.

Further, FIG. 2 shows an example in which a lid for holding down a document is provided so that the device can be used as a document moving type when it is unfolded in the second state.

The leaf springs 9, 9A, and 9B have the advantage of being able to control the pressing force when reading originals of different thicknesses or when adding an original feeding device for continuous reading.

〔Effect of the invention〕

According to the embodiment of the present invention, the sensor block and the roller block are divided into the sensor block and the roller block and are connected to each other by a rotatable heat-linking member, and in the first state, the sensor block and the roller block operate as a document moving type document image reading device; In the second state, a document image reading device capable of self-propelled and accurate reading is obtained as a document image reading device of a stationary original type.

Furthermore, it is possible to obtain a small and portable document image reading device that can easily switch between the first state and the second state. Therefore, the effects of the present invention when applied to portable facsimiles and image data input devices for personal computers are significant.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention; FIG. 1(a) is a perspective view showing the first state, and FIG. 1(b) is a perspective view showing the second state. Figure 2 shows an example of the embodiment of the present invention in which a lid with a document presser is separately provided; (a) is an example of the lid with a document presser; (b)
) is another example of a lid with a document holder, and (C) is a top view of the document holder of (b). Sat－－－－－－－－１－－－・－Sensor Block Doichi－
1---11---1...1 roller block 3---
---1.1--111 Document reading sensor 4----
−−・−・−Feed roller 5−・−−−1−−−
--- Hinge 6, 1, --, Lock 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, , , , , , , , , , , , , , , , , , , , , , , , , smsssss.

Claims (1)

[Scope of Claims] A sensor block having a document reading sensor and a roller block having a feed roller for moving a document, a first state in which the document reading sensor and the feed roller face each other; The sensor block and the roller block are connected to each other by a rotatable connecting member so that a second state in which the document reading sensor and the feed roller are located on substantially the same plane is possible. Characteristic document image data reading device.