JPH07296151A - Optical reader - Google Patents

Abstract

PURPOSE:To simplify the operation of reading start by starting reading by detecting the setting of a recording object on a supply table. CONSTITUTION:When the execution of reading is completely prepared, according to a signal from a recording object sensor 16, a conveyance control part 22 monitors the setting of the recording object on the supply table. When the setting of the recording object on the supply table is detected, after the lapse of prescribed time set to a timer 24, the conveyance control part starts to convey the recording object, starts the scanning of a scanner part 25 at the same time and reports scan start to an entire control part 21. The entire control part lets a recognizing part 23 recognize the scanned recording object, receives code data and transmits them to a computer. The conveyance control part detects the end of the conveyance of all recording objects by the recording object sensor 16 and finishes the conveying operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical reading device, and more particularly to an optical reading device which automatically supplies a recorded material such as a form to carry out scanning.

[0002]

2. Description of the Related Art Various types of optical readers have been proposed for automatically reading forms. A typical optical reading device is a reading device that starts reading a recorded matter such as a form set on a supply table according to a reading command signal,
The supply table is provided with a printed matter sensor for detecting that the printed matter is exhausted. The reading command signal is generally obtained by operating the reading start switch after setting the recorded matter on the supply table. In addition, a read command signal may be obtained by operating a computer connected to this optical reader.

[0003]

However, since it is necessary to operate the reading start switch and the computer in addition to setting the recorded matter on the supply table, it is necessary for the operator to read the recorded matter. The operation was complicated.

Therefore, an object of the present invention is to provide an optical reading device which simplifies the reading start operation.

[0005]

According to the present invention, a reading means for starting the reading of a recording material set on a supply table in accordance with a read command signal, and detecting that the recording material is lost on the supply table. In the optical reading device including a recorded matter sensor, the detection unit that detects that the recorded matter is set on the supply table in cooperation with the recorded matter sensor and generates a detection signal, and the detection signal Accordingly, there is obtained an optical reading device including a reading command signal generating means for generating the reading command signal.

Further, it is preferable that the apparatus further comprises a time setting means for setting a predetermined time, and the read command signal generating means generates the read command signal after the predetermined time has elapsed after receiving the detection signal.

It is also preferable to provide a supply table moving device for moving the supply table between a position corresponding to the reading means and a position not corresponding to the reading command signal.

[0008]

The state of the recorded matter sensor changes depending on whether or not the recorded matter is present on the supply table. Utilizing the change in the state of the recorded matter sensor, the detection means generates a detection signal indicating that the recorded matter is set on the supply table. The read command signal generating means generates a read command signal according to the detection signal. According to the read command signal,
The reading of the recorded matter set on the supply base is automatically started.

[0009]

1 is a side view showing the construction of the main part of an optical reading apparatus according to an embodiment of the present invention. Referring to FIG.
This optical reading device includes an image sensor 12 for reading an image of a recorded matter 11 such as a form and generating an image signal.
And a picker roller 13 and a reverse roller or a driving roller 1 for conveying a recorded matter to the image sensor 12.
4, a feeding device 15 capable of moving up and down for feeding the recording material 11 to the feeding device, and the feeding device 1.
5 includes a recorded matter sensor 16 which is a photo sensor that detects that the recorded matter 11 is gone and generates a specific signal.

The image signal and the specific signal are supplied to the controller 17. The controller 17 generates a transport control signal and controls the operation of the drive roller 14 based on this transport control signal. A computer 18 is connected to the control device 17.

FIG. 2 is a block diagram showing the controller 17 of FIG. 1 together with a computer. Referring to FIG. 2, the control device 17 includes an overall control unit 21, a conveyance control unit 22, a recognition unit 23, a timer 24, and a scanner unit 25.

Next, referring to FIGS. 1 and 2, the reading operation by the optical reading device will be described. First supply stand 1
Preparation for execution of the reading work is performed in the same manner as in the related art by setting a plurality of recording materials 11 on the recording medium 5. When the preparation for execution of the reading work is completed, the conveyance control unit 22 monitors the specific signal from the recorded matter sensor 16.

When the recorded matter 11 is set on the supply table 15, the recorded matter sensor 16 stops the generation of the specific signal. In response to the stop of the generation of this specific signal, the transport control unit 22 generates a detection signal. After the elapse of the predetermined time set by the timer 24, the transport control unit 22 generates a read command signal. Here, for a predetermined time, the operator supplies the recording material 11 to the supply table 15
It is preferable that the time can be set arbitrarily in consideration of the time required to complete the correct setting.

In response to the read command signal, the transport controller 22
Lift the supply table 15 to the paper feed port of the above-mentioned transport device,
The picker roller 13 and the drive roller 14 are operated to start the conveyance of the recorded matter 11. At the same time, the scanner unit 2
5 enters a predetermined scan state, and the image sensor 12
Then, the image recorded on the recorded matter 11 is captured.

Further, the transfer control unit 22 is the overall control unit 21.
The scanner unit 25 is in a predetermined scan state. In accordance with this, the overall control unit 21 causes the recognition unit 23 to recognize the characters and images of the recorded matter 11 according to the above-mentioned image signal, receives the code data representing these, and transmits them to the computer 18.
The computer 18 performs a predetermined process according to this code data.

When the conveyance of the recorded matter 11 on the supply table 15 is completed, the recorded matter sensor 16 generates the specific signal as described above. In response to this specific signal, the conveyance control unit 22 lowers the supply table 15 to the initial position and stops the conveyance.

[0017]

As described above, in the optical reading apparatus according to the present invention, the reading is automatically started when the recorded matter is set on the supply table, so that the operation for starting the reading can be simplified. is there. Further, by controlling the conveyance start timing using the timer, there is an effect that the printed matter is correctly set on the supply table and an operator safety is secured.

[Brief description of drawings]

FIG. 1 is a block diagram of an optical reader according to an embodiment of the present invention.

FIG. 2 is a side view showing a configuration of a main part of the optical reading device in FIG.

[Explanation of symbols]

 11 recorded matter 12 image sensor 13 picker roller 14 drive roller 15 supply table 16 recorded matter sensor 17 control device 18 computer 21 overall control section 22 transport control section 23 recognition section 24 timer 25 scanner section

Claims (3)

[Claims] 1. An optical reading including a reading means for starting reading of a recorded matter set on a supply table in accordance with a read command signal, and a recorded matter sensor for detecting that the recorded matter has disappeared on the supply table. In the apparatus, a detection unit that detects that the recording material is set on the supply table in cooperation with the recording material sensor and generates a detection signal, and a reading command that generates the reading command signal according to the detection signal. An optical reading device comprising a signal generating means. 2. The optical reading device according to claim 1, further comprising time setting means for setting a predetermined time, wherein the read command signal generating means receives the detection signal, and then the read command is issued after a lapse of the predetermined time. An optical reader characterized by generating a signal. 3. The optical reading apparatus according to claim 2, further comprising a supply table moving device that moves the supply table between a position corresponding to the reading unit and a position not corresponding to the reading command signal. An optical reading device characterized by the above.