JPS59138164A - Picture reader - Google Patents

Abstract

PURPOSE:To read originals impossible for separation such as book by contacting closely a reading element array onto a document, moving a reading section in a direction at a right angle to the element array and transferring a picture signal to a storage device at each prescribed distance of movement. CONSTITUTION:The original reading section 21 is placed at the end of the original, moved at a right angle to an image sensor in the direction of the other end, and a picture signal of one scanning line read by the image sensor at each prescribed distance of movement according to a signal generated from a moving position detecting section is transferred to the storage device 23. Then, the reading for one screen's share is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image reading device, and more particularly to an image reading device such as a facsimile transmitter.

Conventionally, an image reading device in a facsimile or the like uses a fixed one-dimensional reading means 1 as shown in FIG.
1, the original 10 is moved in a direction perpendicular to the one-dimensional direction (
The image was read by moving the roller 12 in the direction of arrow A). Therefore, the only documents that can be read are those that have been cut out and separated one by one, and there is a drawback that documents that are bound by books or staples cannot be read.

The purpose of the present invention is to solve the above-mentioned drawbacks by manually or automatically moving an image reading element array over a document.
To provide a device that can easily read manuscripts such as books.

According to the present invention, in an image reading device, an image reading element array is arranged in one direction, and a means for moving the element array in a direction substantially perpendicular to the direction in which the element array is arranged while bringing the element array into close contact with a document to be read. and means for detecting the distance traveled by the moving means, and means for storing image signals read by the element array over the document - the autumnal equinox, so that each sheet of the book or the like can be separated independently. An image reading device that can read original documents is obtained.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 shows a first embodiment of the invention. In FIG. 2, this embodiment is a facsimile image reading device in which the reading section is manually operated, and includes a document reading section 21 that scans and reads a document 20, and a storage device 23 that stores image signals for one document. It further includes a transmitter main body 24 equipped with a storage device, and a cable 25 connecting the original reading section 2 and the transmitter main body 24. The original reading section 21 is the third
As shown in the figure, the moving roller 2 is placed on the surface that will be in close contact with the original.
6 and a close-contact image sensor 27 that converts image information of one scan into an electrical signal, and a moving position detector 27 that detects the moving position (distance) in conjunction with the moving roller 26' is installed inside. A section 28 is provided.

When reading a document, the document reading section 21 is first placed on one edge of the document, and the document reading section 21 is manually moved to the other end in the direction of arrow B. During this time, the moving position detection section 2
Every time the camera moves a certain distance in accordance with the signal generated from the camera 8, the scanned image signal read by the image sensor 27 is transferred to the storage device 23, and one screen's worth of reading is performed.

Furthermore, with reference to FIGS. 4 and 5, the document reading section 2
1 and the electric circuit of the storage device 23 will be described in detail.
A moving position detection pulse a from the moving position detecting section 28 in the document reading section 21 is sent to the line counter 41. The line counter 41 counts the clock pulses C from the clock generator 42 and sends out a pulse bi with a desired pulse width. AND gate 43 outputs this output pulse b
, the gate is opened and the clock generator 4
The transfer lock C' (for example, 2048 pulses) from 2 is supplied to the image sensor 27 and the address counter 44. The image sensor 27 transfers the image signal of the original and sends it out bit by bit in response to the lock C', and sends out one scanning portion to the storage device 23.

In the storage device 23, the image signal GK-1 bit is stored in accordance with the address (lower) adl of the address counter 44.

Every time the document reading section 21 moves by one sub-scanning line density, the pulse a from the movement position detection section 28 is detected by the line counter 41.
Then, the address counter (lower) 44 is reset, and the address counter (upper) 45 is counted by one. The address counter (lower) 44 sends out the output pulse b again, and the address counter 44 starts counting again, but the address counter 45 counts the count value by one and then turns the knob.

The above operation is performed every time a movement position detection pulse is generated, and when the document reading section 9 finishes scanning one screen, image signals for one screen are stored in the storage device.

Next, FIGS. 6 and 7 show a second embodiment of the present invention. In FIG.
2, a support panel 39 that supports the document reading section 32, a guide rail 35 that guides the document reading section 32,
The facsimile transmitter main body 34 is electrically connected to a document reading section 32. The document reading section 32 is further provided with a moving motor, and the document reading section 32 is automatically moved.
The support panel 39 is configured to be movable, and is provided with a hinge or the like so that it can be moved up and down so that the document reading section does not get in the way when setting a document. When reading a document, first place the document 30 in front of the main body 34, rotate the support panel 39 in the direction of arrow C as shown in FIG. Begin to. Similarly to the first embodiment, each time the camera moves a certain distance according to the signal generated from the moving position detection section, the scanning image signal read by the contact image sensor is transferred to the storage device in the main body, and the scanning image signal for one screen is is read.

In the present embodiment, the storage capacity of the storage device for storing image signals is set to be one document, but it goes without saying that this may be used as a plurality of equinoxes to read a plurality of documents in succession.

As explained above, the present invention is capable of capturing a single sheet of a book or the like by manually or automatically moving the image reading cluster row in a direction perpendicular to the document while bringing it into close contact with the document and transferring the image signal to the storage device. This has the effect of being able to read a document in which each sheet is not separated independently.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a conventional reading device, FIG. 2 is a diagram showing a first embodiment of the present invention, FIG. 3 is a diagram showing a document reading section used in this embodiment, and FIG. 8 shows a control circuit used in the present invention, FIG. 8 shows a time chart thereof, and FIGS. 6 and 7 show a second embodiment of the present invention. 20.30... Manuscript, 21.32...
Original reading unit, 23...Storage device, 24.3
4...Body, 25...Cable, 26
．． 26'...Row 5-127...Image sensor, 28...Movement position detection section, 35.
...Guide rail, 39...Support panel. Figure 6 J

Claims (1)

[Claims] In a device that reads a document or the like by scanning multiple times, an image reading element array is arranged in one direction, and the element array is placed in close contact with the document to be read, and the image reading element array is scanned in a direction substantially perpendicular to the direction in which the element array is arranged. An image reading device comprising a means for moving, a means for detecting a position moved by the moving means, and a means for storing an image signal read by the element array for more than the document - the autumnal equinox.