• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to the detection of the presence or absence of documents in an electronic copying device, and more particularly, to a method for detecting the presence or absence of an original in an electronic copying device capable of confirming the presence or absence of a black document as well as a general document using only an angle switch and a document detecting sensor. Conventionally, the angle of the electronic copying device cover can be known by the combination of the angle switch and the interlock sensor, and the combination of the combined value and the detected value of the original sensor can be used to determine the presence of the document, thereby increasing the unit cost of the component. There was this complicated problem. According to the present invention, the first and second original state values are applied to the control unit using only the angle switch and the original detection sensor, so that the simple configuration and the existence of black originals as well as ordinary originals can be accurately confirmed at low parts cost. According to the control, it is possible to prevent the unnecessary power consumption when there is no original.
    公开号:KR19980053452A
    申请号:KR1019960072556
    申请日:1996-12-26
    公开日:1998-09-25
    发明作者:강필성
    申请人:문대원；코리아제록스 주식회사；
    IPC主号:
    专利说明:

    How to Detect Documents in the Electronic Copy Device
    The present invention relates to the detection of the presence or absence of documents in an electronic copying device, and more particularly, to a method for detecting the presence or absence of an original in an electronic copying device capable of confirming the presence or absence of a black document as well as a general document using only an angle switch and a document detecting sensor.
    In general, when the electronic copy device detects the presence of a document, an interlock sensor that first determines whether the electronic copy device cover is on or off, and whether the electronic copy device cover is opened or closed. The combination of the on / off state of the indicates the angular state of the cover of the electronic copying device.
    However, when the electronic copying device cover is open in the single-stage detection state, for example, even when copying a thick book, the state of the corresponding angle switch and the interlock sensor is turned off, so that the corresponding document detection sensor detects the presence of the document. The value indicates whether the document is present or not.
    Then, when the electronic copying device cover is closed and the two-stage detection state has elapsed for a predetermined time, the ON state value of the corresponding angle switch and the interlock sensor and the state value of the original detection sensor detecting the presence of the original are combined. The presence or absence is detected.
    As such, in the related art, the angle state of the electronic copying device cover can be known by a combination of an angle switch and an interlock sensor, and the combined value and the sensed value of the document detecting sensor can be combined to determine the existence of the document. There was a problem to increase the complexity and configuration.
    In order to solve the above problems, the present invention can check the presence of black originals as well as ordinary originals using only the angle switch and the document detection sensor to reduce the unit cost of parts and provide the presence or absence of precise originals An object of the present invention is to provide a method of detecting a document presence.
    The present invention for achieving the above object is the first to detect the state of the cover in the angle switch to apply the first cover state value to the control unit to determine whether the first cover state value is the 'low' level; Process; When the first cover state value is 'low' level, if the document detection sensor detects the presence of an original and applies a first original state value to the controller, the controller returns the corresponding first original state value and the first cover state value. Storing the memory in a memory unit; A third step of re-detecting a state of a cover in the angle switch and applying a second cover state value to the controller within a predetermined time period to determine whether the second cover state value is a 'high' level; When the second cover state value is 'low' level, the controller deletes the first original state value and the first cover state value stored in the memory unit, and then detects the presence or absence of the original by the original sensor. A fourth step of applying one original state value to the control unit again; When the second cover state value is 'high' level, if the original sensor detects the presence or absence of an original and applies the second original state value to the controller, the controller determines whether the second original state value is 'high' level. A fifth process of confirming; If the second original state value is 'low' level, the controller reads the first original state value and the first cover state value stored in the memory unit, and recognizes the black original by comparing with the second original state value. A sixth step of determining a size of the black document, displaying the black document on the display unit, and turning on the driving switch relay; If the second original state value is 'high' level, the controller reads the first original state value and the first cover state value stored in the memory unit, and the first original state value is equal to the second original state value. A seventh process of checking whether or not it is identical; If the first original state value is not the same as the second original state value, the controller indicates that there is no original on the display unit, turns off the driving switch relay, and then detects the presence or absence of the original again by the original detection sensor. An eighth step of applying a first original state value to the control unit again; If the first original state value is the same as the second original state value, the control unit recognizes that it is a general original, and determines the size of the corresponding general original, and displays on the display unit that there is the corresponding general original. A ninth process of warming; And a tenth step of performing a general copying operation when the first cover state value is 'high' level or when the driving switch relay is turned on.
    1 is a block diagram showing a configuration for detecting the presence of a document in the electronic copying apparatus according to an embodiment of the present invention.
    FIG. 2 is a table for explaining the presence or absence of an original according to the original state value of FIG. 1. FIG.
    Figure 3 is a flow chart showing a document presence detection method in the electronic copying apparatus according to an embodiment of the present invention.
    Explanation of symbols on the main parts of the drawings
    10: angle switch 20: document detection sensor
    30 control unit 40 memory unit
    50: drive switch relay 60: display unit
    In the electronic copying apparatus according to the embodiment of the present invention, the configuration for detecting the presence of a document is as shown in FIG. 1, an angle switch 10, a document detection sensor 20, a controller 30, and a memory unit ( 40, the drive switch relay 50, and the display unit 60.
    The angle switch 10 detects an open / closed state of the electronic copying device cover and applies the detected cover state value to the controller 30.
    The document sensor 20 detects the presence or absence of the document by the reflected wave that is generated by generating a radio wave and emitted to the original on the glass of the electronic copying apparatus and reflected, and applies the detected original state value to the controller 40. do.
    The controller 30 applies control data by combining the detected cover state value applied from the angle switch 10 and the detected original state value applied from the document detection sensor 20.
    The memory unit 40 stores the detected cover state value applied from the angle switch 10 and the detected original state value applied from the document detection sensor 20 under the control of the controller 30.
    The drive switch relay 50 is on / off relay to control the operation of the drive switch in accordance with the control data of the control unit 30.
    The display unit 60 displays the presence or absence of a black document and a general document according to the control data of the control unit 30.
    In the electronic copy apparatus according to an embodiment of the present invention, the document presence detection method performs the following operation with reference to the flowchart of FIG. 3.
    First, when the angle switch 10 detects the cover state of the electronic copying device and applies the detected first cover state value to the control unit 30 (step S1), the control unit 30 performs the corresponding angle switch 10. The state of the cover can be recognized by checking the first cover state value applied from the cover. In other words, when the cover of the electronic copying device is in the closed state, the angle switch 10 applies the cover state value of the 'high' level to the control unit 30 and, in the open state, the cover of the 'low' level. By applying the state value, the control unit 30 can check whether the state value of the cover is 'low' level (step S2).
    In the first case, if the first cover state value checked by the control unit 30 is at the 'low' level, the document detecting sensor 20 generates a radio wave and emits it to the document on the glass of the electronic copying device, and then reflects it back. The presence or absence of the original is detected by the reflected wave. In the case of a general original, the presence or absence of the reflected wave is determined according to the presence or absence of the original, and the detected first original state value is applied to the controller 30. In other words, if the document detection sensor 20 has an original, the document state value of the 'high' level is applied to the controller 30, and if the document is not present, the document state value of the 'low' level is applied (step S3). .
    The controller 30 checks the detected first document state value applied from the document sensor 20 so that the power is not turned off together with the first cover state value applied from the angle switch 10. It stores in the nonvolatile memory unit 40 (step S4).
    Thereafter, the controller 30 checks whether a predetermined time of about 130 (msec) to 300 (msec) has elapsed (step S5). At the same time, the angle switch 10 continuously detects the cover state of the electronic copying apparatus, and when the cover is closed, applies the second cover state value to the control unit 30 again at a 'high' level (step S6). The controller 30 checks again whether the second cover state value reapplied from the angle switch 10 is a 'high' level (step S7).
    If the controller 30 does not receive the second cover state value of the 'high' level from the angle switch 10 during the predetermined time, the first cover state value stored in the memory unit 40 and After controlling to delete the first original state value, the document detection sensor 20 detects the presence or absence of the original and applies the detected first original state value to the controller 30 again (step S8).
    Then, when the control unit 30 receives the second cover state value of the 'high' level from the angle switch 10 again during the predetermined time, the document detecting sensor 20 generates an electric wave and the electronic copying device glass The presence or absence of the original document is detected by the reflected wave which is reflected back after being emitted to the original document and applies the detected second original state value to the controller 30. However, since the inside of the cover of the electronic copying device is white in the case of a normal document, the document detection sensor 20 applies the document state value of the 'high' level to the controller 30 regardless of the presence or absence of the document. In the case of a black document containing a picture or an illustration, since the radio wave generated by the document sensor 20 is absorbed, the original state value of the 'low' level is applied (step S9).
    Accordingly, the control unit 30 checks the detected second original state value applied from the document detection sensor 20, and checks whether the detected second original state value is 'high' level (step S10). .
    If the detected second original state value is 'low' level, the controller 30 reads the first cover state value and the first original state value stored in the memory unit (step S11). The original state value and the second original state value are compared as shown in FIG. 2 (step S12), after recognizing that there is a black document, the size of the corresponding black document is determined (step S13), and the display unit 60 Control to indicate that there is a black document (step S14) and to make the drive switch relay 50 on-contact to operate the drive switch (step S15).
    On the other hand, if the detected second original state value is 'high' level, the controller 30 reads the first cover state value and the first original state value stored in the memory unit (step S16). The first original state value and the second original state value are compared as shown in Fig. 2, and it is checked whether the first original state value is the same as the second original state value (step S17).
    Accordingly, when the controller 30 confirms that the first original state value is not the same as the second original state value, the controller 30 controls the display unit 60 to indicate that there is no original (step S18). After turning off the drive switch relay 50 to prevent the operation, the document detection sensor 20 again detects the presence of the document and applies the detected first document state value to the controller 30. Let's do it. By doing so, even if the user presses the driving switch by mistake, the electronic copying device does not operate so that power consumption is not required (step S19).
    When the controller 30 confirms that the first original state value is the same as the second original state value, the controller 30 recognizes that there is a general original and determines the size of the corresponding general original (step S20). Control 60 to indicate that there is a plain manuscript (step S21) and bring the drive switch relay 50 on contact so that the drive switch is activated (step S22).
    In the second case, when the first cover state value checked by the controller 30 is 'high' level or when the driving switch relay 50 is in contact, the normal copy operation is performed as in the conventional case (step S23). .
    As described above, since the first and second original state values are applied to the control unit using only the angle switch and the document detection sensor according to the present invention, the presence or absence of black originals as well as simple originals and simple originals can be accurately confirmed at low cost. It is possible to prevent the unnecessary power consumption when there is no document under the control of driving switch relay.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] In the electronic copy apparatus, in the document presence detection method, when the state of the cover is sensed by the angle switch 10 and the first cover state value is applied to the control unit 30, the first cover state value is' A first step of confirming whether it is at a low level; When the first cover state value is 'low' level, the document detecting sensor 20 detects the presence or absence of an original, and applies the first original state value to the control unit 30, the control unit 30 then the first original. A second process of storing a state value and the first cover state value in a memory unit 40; When the angle switch 10 detects the state of the cover within a predetermined time and applies the second cover state value to the controller 30, the controller 30 determines whether the second cover state value is a 'high' level. Confirming the third process; When the second cover state value is 'low' level, the control unit 30 deletes the first original state value and the first cover state value stored in the memory unit 40 and then the document detecting sensor 20. Detecting a presence or absence of an original by and applying a first original state value to the controller 30 again; When the second cover state value is 'high' level, the document detecting sensor 20 re-detects the presence or absence of an original, and applies the second original state value to the control unit 30. A fifth step of checking whether the original status value is 'high' level; If the second original state value is 'low' level, the controller 30 reads the first original state value and the first cover state value stored in the memory unit 40 and compares the second original state value. A sixth step of determining the size of the corresponding black document, displaying the corresponding black document on the display unit 60, and turning on the driving switch relay 50 by recognizing the black document; If the second original state value is 'high' level, the control unit 30 reads the first original state value and the first cover state value stored in the memory unit 40, and the first original state value is the value. A seventh step of checking whether the second original status value is the same; If the first original state value is not the same as the second original state value, the controller 30 displays that there is no original on the display unit 60, turns off the driving switch relay 50, and then detects the original. An eighth step of detecting again the presence or absence of an original by the sensor 20 and applying a first original state value to the controller 30 again; If the state of the first original is equal to the state of the second original, the controller 30 recognizes that the document is a general document, determines the size of the document, and displays on the display unit 60 that there is the document. And a ninth process of turning on the driving switch relay 50; And a tenth step of performing a general copying operation when the first cover state value is 'high' level or when the driving switch relay (50) is turned on.
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    同族专利:
    公开号 | 公开日
    KR100423489B1|2005-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-26|Application filed by 문대원, 코리아제록스 주식회사
    1996-12-26|Priority to KR1019960072556A
    1998-09-25|Publication of KR19980053452A
    2005-01-15|Application granted
    2005-01-15|Publication of KR100423489B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019960072556A|KR100423489B1|1996-12-26|1996-12-26|Method for sensing existence of document in electronic copy machine using only angle switch and document sensing sensor|
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