KR100296595B1 - Method for control discharge state of document in image scanning apparatus - Google Patents

Abstract

The present invention relates to a method for controlling an original ejection state of an image reading apparatus.

An object of the present invention is to detect the current position of the document, if the original power is supplied to the initial scanning position after the system is powered off again by an error of the system or by the user's operation, the current position of the detected original is initialized In the scanning position, the original is held without ejecting the original.

A feature of the present invention includes an image sensor, comprising: an image reading apparatus configured to feed a loaded document at a constant speed so as to read image data recorded on the original: detecting whether the system has been initialized; When the system is initialized, it is determined whether a scanning operation has been selected; If the scanning operation is selected, it is determined whether the original is detected through the original detection sensor; If an original is detected, detecting a current position value of a previously stored original; Determine whether the detected current position value of the original is the initial scanning position; If the current position value of the original is not the initial scanning position, after discharging the original, feeding the loaded original to the initial scanning position, and then performing a scanning operation; If the current position value of the original is the initial scanning position, the scanning operation is performed on the original.

The present invention detects the current position of the original in the initial state of the system, and if the current position of the detected original is the initial scanning position, by performing the scanning operation for the original in the state maintained without ejecting the original, This has the advantage of providing convenience to the user.

Description

TECHNICAL FOR CONTROL DISCHARGE STATE OF DOCUMENT IN IMAGE SCANNING APPARATUS}

The present invention relates to a method of controlling an original ejection state of an image reading apparatus, and more particularly, an image reading apparatus configured to control whether or not to eject according to the current position of an original when the system is initialized after the original is fed to the initial scanning position. It relates to a method of controlling the document discharge status of the.

In general, an image reading apparatus such as a scanner is the most common means for scanning (printing) of letters, pictures, etc. in the form of printed materials, photographs, and memos, and includes a multifunction device, a document translator, and CAD (Computer Aided Design). Computer, facsimile, character recognizer, and digital copier.

In recent years, as office electronics, which is at the crossroads of development, is rapidly increasing in demand for office automation equipment such as digital copiers, printers, scanners, and facsimile machines, each office automation device has been developed to expand its own functions. It is being developed with high performance. In addition, each office automation equipment used independently is developed in one piece to reduce the economic burden and installation space for the user and at the same time produce and provide products that perform complex document printing functions. . Such a device is called 'Multi-Function Peripheral' (MFP), and today, a multifunction device is a typical example of a device using a scanner using an image reading device.

In other words, the multifunction device not only functions as a printer for printing data input from a host computer, but also as a scanner for reading image originals, a copying function for printing and copying scanned and scanned image originals, and images via a communication line. It is a device with a compound document output function that performs functions as a facsimile for transmitting an original to a remote site. That is, it is a multi-function terminal made by weaving existing terminal devices such as facsimile machines, scanners, printers, and copiers into a single unit, and generally includes a host computer-interface function that works with a host computer.

In the conventional image reading apparatus, when the system is initialized while the original is fed to the initial scanning position, it is impossible to know whether the loaded original is being scanned, so that the original is forcibly ejected regardless of the current position of the loaded original. In order to perform the scanning operation, the user had to set the original again.

However, according to such a conventional image reading apparatus, the following problem occurs.

That is, if the system is initialized after the original is fed to the initial scanning position, the original is discharged regardless of the current position of the original, so even if the original is waiting for scanning, the user must set the original again, which is inconvenient.

Accordingly, the present invention is to solve such a problem, the object of the present invention is that if the original power is supplied to the initial scanning position after the system is powered off by the error or user operation of the system again, the original The present invention provides a method of controlling an original ejection state of an image reading apparatus which detects a current position and maintains the original without ejecting the original when the detected original position is an initial scanning position.

1 is a schematic structural diagram of a shuttle scanner as an example of an image reading apparatus applied to the present invention.

2 is a schematic block diagram of a shuttle scanner as an example of an image reading apparatus applied to the present invention.

3 is a flowchart illustrating an operation of the method for controlling an original document discharge state according to the present invention.

<Description of the code | symbol about the principal part of drawing>

103: scanning head 108: driving roller

110: original detection sensor 111: central processing unit

112: system memory

A feature of the present invention for achieving this object is an image reading apparatus including a document detecting sensor and feeding a loaded document at a constant speed so as to read image data recorded on the document: Is the system initialized? Detect; When the system is initialized, it is determined whether a scanning operation has been selected; If the scanning operation is selected, it is determined whether the original is detected through the original detection sensor; If an original is detected, detecting a current position value of a previously stored original; Determine whether the detected current position value of the original is the initial scanning position; If the current position value of the original is not the initial scanning position, after discharging the original, feeding the loaded original to the initial scanning position, and then performing a scanning operation; If the current position value of the original is the initial scanning position, the scanning operation is performed on the original.

Here, if the original is detected by the original sensor and the current position of the original is the initial scanning position, the current position value of the original is set as the first position value and then stored; If the original is detected by the document detection sensor and the current position of the original is not the initial scanning position, the current position value of the original is set as the second position value and stored.

Also, if the current position value of the original is the initial scanning position, display the predetermined character information so that the user can select whether or not to eject the original; If the user selects an ejected state of the original, after the original is discharged, the loaded original is fed to the initial scanning position, and then the scanning operation is performed; If the user does not select the ejection status of the original, the process proceeds to the scanning operation on the original.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the elements of each drawing, it should be noted that the same elements are denoted by the same reference numerals as much as possible even if they are displayed on different drawings. In addition, in the following description there are shown a number of specific details, such as components of the specific circuit, which are provided only to help a more general understanding of the present invention that the present invention may be practiced without these specific details. It is self-evident to those of ordinary knowledge in Esau. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 shows a schematic structural diagram of a shuttle scanner as an example of an image reading apparatus applied to the present invention, and FIG. 2 shows a schematic block diagram of a shuttle scanner as an example of the image reading apparatus applied to the present invention. 3 is a flowchart illustrating an operation of the method for controlling a document discharge state according to the present invention.

Referring to FIG. 1, the main body frame 101 supporting the shuttle scanner and the base frame 102 forming a paper conveyance path are integrated.

Further, the scanning head 103 is installed to be spaced apart from the effective reading area of the original by a predetermined distance, and scans the image information recorded on the original, the carriage 104 supporting the scanning head 103, and the carriage 104. A guide rail 105 for guiding the left and right reciprocating motion of the &lt; RTI ID = 0.0 &gt;), a carriage return motor 106 for providing a driving force for the carriage 104 to reciprocate left and right, and a carriage return. A transport belt 107 which is mounted on the motor 106 and the carriage 104 at the same time and transfers the driving force of the carriage return motor 106 to the carriage 104, and a document loaded on the document stacker, picks up the transport path of the document. A pick-up roller (not shown) to be put on the plate, a drive roller 108 for transferring the originals picked up by the pick-up roller to the effective reading area of the scanning head 103, and a discharged document after the scanning operation is finished. Discharge roller (not shown), The white pattern of a predetermined type included in the flow trajectory of the carriage 104 and attached to one readable area of the base frame 102 outside the effective reading area of the scanner head 103 and readable by the scanning head 103 is recorded. It consists of a reference sheet 109.

Meanwhile, referring to FIG. 2, the overall configuration of the shuttle scanner is described. As illustrated in FIGS. 1 and 2, the document detection sensor 110 transfers an original by an original that is transferred to detect a transfer position of the original. Actuator rotated in the direction, and the optical sensor for detecting the presence or absence of the document in response to the rotational movement of the actuator.

The central processing unit 111 controls the system as a whole according to a predetermined program. That is, the central processing unit 111 controls the system memory 112 in which the program for driving the system is embedded, and controls the image processing unit 113 for performing the scanning operation of the image data through the scanning head 103. The control of the image data processed by the image processing unit 113 is performed.

The image processing unit 113 performs shading and gamma correction, resolution conversion, edge emphasis, and error diffusion on the image data scanned by the scanning head 103. Various image processing operations such as Diffusion).

The scanning head 103 scans an image recorded on the original while reciprocating in a direction orthogonal to the feed direction of the original while being spaced a predetermined distance from the original.

The rasterizer 114 performs rasterizing on the image data scanned by the vertical block.

The image memory 115 is a buffer memory for image data processing required to perform an image processing operation in the image processing unit 113.

The system memory 112 includes a ROM in which an overall system driving program is embedded, and a RAM for processing system data. In particular, the information about the current position of the document is stored in the RAM under the control of the central processing unit 111, and transfers the information about the current position of the original to the central processing unit 111 when the system is initialized.

The interface unit 116 is a module for Bi-Directional Parallel Interfacing with a computer based on the 1284 protocol of the Institute of Electrical and Electronic Engineers (IEEE). To the computer.

Referring to Figure 3 with respect to the operation of the present invention configured as described above are as follows.

When the document loaded on the document stacker is picked up by the pickup roller, the driving roller 108 transfers the document to the initial scanning position. At this time, the document passes through the document sensor 110, and thus the document sensor 110 notifies the central processing unit 111 that the document is being transferred. The central processing unit 111 determines a time point for scanning the original through the transfer information of the original transmitted from the original detection sensor 110. Thereafter, when the original reaches the initial scanning position by the driving roller 108, the central processing unit 111 initializes the position value of the original to '0'.

Then, when the normal scanning operation starts, the central processing unit 11 sets the position value of the document to '1', and temporarily stores the position value of the set document in the RAM in the system memory 112.

At this time, if the power is cut off by the user of the system or by the user again, the system is initialized (S1). Here, when the user selects the scanning operation, the central processing unit 111 checks whether the document is fed through the document sensor 110 (S2). If the original is not fed in this step 2 (S2), the central processing unit 111 picks up the original loaded on the document stacker, transfers it to the initial scanning position, and then acquires the data recorded on the original. Control to perform (S7).

If it is determined in step 2 (S2) that the original is fed, the CPU 111 detects the position value of the original stored in the RAM in the system memory 112 (S3) and the current position of the original is initially scanned. It is determined whether the position (S4). At this time, if the position value of the original is '1', this indicates that the system is terminated in the state where the current position of the original is not the initial scanning position but the scanning operation is in progress, so that the original roller is discharged by controlling the driving roller 108. (S5), as the user resets the original, as described above, the normal scanning operation on the original is performed (S7).

If the position value of the original is '0' in step 3 (S3) above, this indicates that the current position of the original is the initial scanning position, so that the central processing unit 111 maintains the original in the present state ( S6), as described above, a normal scanning operation on the document is performed (S7).

On the other hand, if the position value of the original is detected as '0' in step 3 (S3) above, the central processing unit 111 allows the user to select the original state and the discharge state of the original on the display window of the image reading apparatus A letter is displayed to confirm the discharge. If the user selects the original ejection state, the user may eject the document even if the original position is the initial scanning position. If the user does not select the original ejection state, the original may be maintained at the initial scanning position.

Therefore, if the current position of the original in the initial state of the system is the initial scanning position, the scanning operation for the original is performed while maintaining the original without ejecting the original.

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

As a result, according to the method for controlling the document discharge state of the image reading apparatus according to the present invention, the following advantages occur.

That is, the system detects the current position of the original in the initialized state, and if the current position of the detected original is the initial scanning position, the scanning operation for the original is performed by maintaining the original without ejecting the original. To provide convenience.

Claims (3)

An image reading apparatus comprising an original sensor, wherein the loaded original is fed at a constant speed to read the image data recorded on the original: Detecting whether the system has been initialized; Determining whether a scanning operation has been selected when the system is initialized in the detecting step; If the scanning job is selected, determining whether the original is detected through the original detection sensor; If the original is detected, detecting a current position value of the stored original; Determining whether the current position value of the detected original is an initial scanning position; If the current position value of the original is not the initial scanning position, discharging the original, feeding the loaded original to the initial scanning position, and then performing the scanning operation; And And performing the scanning operation on the original when the current position value of the original is the initial scanning position. The method of claim 1, If the original is detected by the original sensor and the current position of the original is the initial scanning position, set and store the current position value of the original as a first position value; If the original is detected by the document detecting sensor and the current position of the original is not the initial scanning position, the current position value of the original is set as the second position value and stored. A method for controlling the document ejection state of an image reading apparatus. The method of claim 1, If the current position value of the original is the initial scanning position, displaying predetermined text information so that a user can select whether to eject the original; If the user selects the discharge state of the original, after discharging the original, feeding the loaded original to the initial scanning position, and then performing the scanning operation; And if the user does not select the ejection state of the document, proceeding to perform the scanning operation on the document.