JP2008245091A - Document reader, input reception method in document reader and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for reducing the number of components provided in the operation panel of a document reader and receiving an instruction from a user at a high speed. <P>SOLUTION: The document reader 100 can read documents. The document reader 100 is provided with a scanner button part 111, where a plurality of regions (holes) for transmitting light are disposed, a group of photodetectors 303 for detecting the light intensity of reflected light of light emitted to the scanner button part 121, and a light intensity information analyzing part 202 for receiving signals converted, corresponding to the detected light intensity as predetermined operation input. As a result, the document reader 100 can receive the operation input of the scanner button part 121. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a document reading apparatus, and more particularly to a technique for reducing the number of parts used in an operation panel.

  In general, a document reading apparatus having a function of reading a document such as a multifunction peripheral, a facsimile machine, and a printing machine includes an operation panel, and receives an instruction by operating the operation panel by a user. In recent years, document reading apparatuses having various functions have been developed, and the setting of each function is diverse. For this reason, many parts including buttons and the like have been provided on the operation panel that accepts the setting of each function.

  However, if a large number of parts are provided on the operation panel, the cost of the document reading apparatus increases. Therefore, for example, Patent Document 1 describes a technique for selecting a photograph to be printed and setting the number of copies using a mark sheet in order to reduce the number of components provided in the operation panel.

JP-A-5-324737

  However, when setting is performed using a mark sheet, the document reading apparatus needs to transport the mark sheet or scan a carriage that linearly reads the image in order to read a black and white image written on the mark sheet. For this reason, there is a problem that it takes time to receive an instruction from the user to the document reading apparatus.

  An object of the present invention is to provide a technique for reducing the number of components provided in an operation panel of an original reading apparatus and performing a process for receiving an instruction from a user at high speed.

  In order to solve the above-described problems, the present invention provides a document reading apparatus that reads a document, and detects a light intensity of reflected light of a panel irradiated with a panel on which a plurality of light transmitting regions are arranged. And a light intensity information analysis unit that receives a signal converted according to the detected light intensity as a predetermined operation input.

  According to the document reading apparatus of the present invention, it is possible to reduce the number of components provided on the operation panel and to perform a process of receiving an instruction from the user at high speed.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  An example of the appearance of the document reading apparatus 100 applied to the embodiment of the present invention is shown in FIG. The document reading apparatus 100 is a facsimile, a multifunction machine, or the like having a function of reading a document. As illustrated, the document reading apparatus 100 includes a document reading unit 103 for reading a document, a base 102 for supporting the document reading unit 103, a lid 101 for fixing a document to be read by the document reading unit 103, and Have

  As illustrated in FIG. 2A, the document reading unit 103 includes a scanner button unit 111, a glass table 112, a carriage 113, and an input unit 115. The document reading unit 103 reads a document placed on the glass table 112 using the carriage 113. The document reading unit 103 receives an instruction from the user using the scanner button unit 111 and the carriage 113.

  As shown in FIG. 3A, the carriage 113 includes a plurality of light receiving elements 303. FIG. 3A is a view of the document reading unit 103 viewed from a direction perpendicular to the Z plane shown in FIG. Each light receiving element 303 generates an electrical signal corresponding to the intensity of incident reflected light. A light source (not shown) included in the carriage 113 irradiates the document on the glass table 112 with light, and each light receiving element 303 converts the reflected light into an electrical signal, thereby reading the document. At the time of reading a document, this conversion is performed by each light receiving element 303 when the carriage 113 moves horizontally with respect to the document. At this time, the direction in which the carriage 113 moves in parallel is the scanning direction (± X bidirectional) shown in FIG. As a result, the document reading apparatus 100 can capture a two-dimensional image.

  The scanner button unit 111 inputs an instruction from the user to the document reading apparatus 100. The scanner button unit 111 converts the reflected light of the light irradiated to the scanner button unit 111 into an electrical signal by the plurality of light receiving elements 303 provided in the carriage 113 located at the home position (hereinafter referred to as a first stop position). Then, the input from the user is accepted. For example, the scanner button unit 111 is provided with a plurality of regions (for example, holes 121) that transmit light output from the light source of the carriage 113, as shown in FIG. For example, ten holes 121 are provided. The light receiving element 303 converts the reflected light from the scanner button unit 111 into an electrical signal. At this time, the intensity of the reflected light in the vicinity of the hole 121 becomes weaker than the reflected light in the portion where the hole 121 of the scanner button unit 111 is not provided (the original reading unit 103 at this time is shown in FIG. The view seen from the direction perpendicular to the Z plane shown in FIG. Therefore, the light intensity information 150 obtained by the light receiving element 303 converting the reflected light from the scanner button unit 111 into an electric signal is as shown in FIG. 4 (left side). That is, the light intensity information corresponding to the vicinity of the hole 121 is a value indicating black, and the light intensity information corresponding to the other part is a value indicating white. At this time, if the user covers any of the holes 121 with a finger, the intensity of the reflected light at that portion increases, and thus the obtained light intensity information is a value indicating white. The document reading apparatus 100 can specify which hole 121 on the scanner button unit 111 is covered by the user using the above characteristics. In the scanner button unit 111, a hole identification number 122 is described corresponding to each hole 121 so that the user can identify each hole 121. The hole identification number 122 may be a continuous integer value from 0 to 9, for example.

  Returning to FIG. 2A, the input unit 115 inputs an instruction from the user to the document reading apparatus 100. The input unit 115 instructs, for example, a mode switch to a start button for instructing the start of document reading, the start of FAX communication, or the “scan format button mode” for receiving a user instruction from the scanner button unit 111. Button.

  Further, as shown in FIG. 2B, the document reading unit 103 sets an ADF (Auto) for automatically reading continuously by setting a plurality of documents between the scanner button unit 111 and the glass table 112. Document Feeder) A document reading unit 114 may be provided. In this case, when scanning of the document sent to the ADF document reading unit 114 is started, the carriage 113 is moved to the position of the ADF document reading unit 114 (hereinafter referred to as a second stop position). The document reading unit 103 including the document reading unit 114 can also accept user input from the scanner button unit 111 in a state where the carriage 113 is stopped at the first stop position.

  Next, an example of a functional configuration of the document reading apparatus 100 is shown in a block diagram of FIG. As illustrated, the document reading apparatus 100 includes a control unit 200. The control unit 200 includes a carriage control unit 201 that controls the carriage 113 described above, a light intensity information analysis unit 202 that analyzes the light intensity information 150 described above, and an input signal and light intensity information analysis unit that receives the input unit 115 described above. A process determining unit 203 that determines the next process based on the analysis result 202; and a state storage unit 204 that stores information for specifying the state of the document reading apparatus 100.

  The carriage control unit 201 of the control unit 201 includes a drive control unit 211, an A / D converter 212, and a light intensity information storage unit 213.

  The drive control unit 211 generates a control signal for controlling the carriage 113 and supplies the generated control signal to the drive unit 301 of the carriage 113. For example, the drive control unit 211 generates a control signal for causing the carriage 113 to perform a scanning process. The drive control unit 211 also generates a control signal for causing the carriage 113 to read a user operation on the scanner button unit 111.

  The A / D converter 212 performs processing for converting the electrical signal supplied from the carriage 113 into a digital signal. Specifically, when the electric signal generated by the light receiving element 303 according to the light intensity is supplied, the A / D converter 212 generates the light intensity information 150 according to the electric signal. The A / D converter 212 supplies the generated light intensity information 150 to the light intensity information storage unit 213 for storage.

  The light intensity information storage unit 213 stores a light intensity information storage table 401 for storing the light intensity information 150. The light intensity information storage table 401 includes, for example, a light receiving element number column 411 and a light intensity information column 412 as illustrated in FIG. The light receiving element number column 411 stores a light receiving element number for specifying each light receiving element 303. The light intensity information column 412 stores light intensity information 150 corresponding to the electrical signal generated by each light receiving element 303 in association with the light receiving element number in the light receiving element number column 411.

  The light intensity information storage unit 213 stores a light receiving element correspondence table 402 for specifying a light receiving element 303 that receives reflected light from each hole 121 in the scanner button section 111. For example, the light receiving element correspondence table 402 includes a hole identification number column 421 and a light receiving element number column 422 as shown in FIG. In the hole identification number column 421, an identification number for specifying each hole 121 of the scanner button unit 111 is stored. The light receiving element number column 422 stores a light receiving element number for specifying the light receiving element 303 that receives the reflected light from each hole 121 in association with the hole identification number in the hole identification number column 421. .

  The light intensity information analysis unit 202 refers to the light intensity information storage table 401 and the light receiving element correspondence table 402 stored in the light intensity information storage unit 213, and identifies the user operation on the scanner button unit 111. For example, the light intensity information analysis unit 202 specifies which of the holes 121 provided in the scanner button unit 111 is covered with the user's finger. Specifically, the light intensity information analysis unit 202 accesses the light receiving element correspondence table 402 and acquires the light receiving element number stored in association with each hole identification number. In the example of FIG. 6B, the light intensity information analysis unit 202 associates the light receiving element numbers “2 to 5” and the hole identification number “1” stored in association with the hole identification number “0”. The light receiving element numbers such as the stored light receiving element numbers “8 to 11” are acquired. Next, the light intensity information analysis unit 202 accesses the light intensity information storage table 401 and acquires the light intensity information 150 stored in association with the light receiving element number acquired from the light receiving element correspondence table 402. In the example of FIG. 6A, the light intensity information analysis unit 202 acquires the light intensity information “32, 11, 23, 72” stored in association with the light receiving element number “2-5”. Subsequently, the light intensity information analysis unit 202 calculates an average value of the corresponding light intensity information 150 for each hole identification number. For example, in the example of FIGS. 6A and 6B, the average value of the light intensity information corresponding to the hole identification number “0” is (32 + 11 + 23 + 72) / 4. When the average value of the obtained light intensity information is equal to or less than a predetermined reference value (for example, 50), the light intensity information analysis unit 202 sets the hole 121 corresponding to the hole identification number with the user's finger. Identify covered. Here, when there are a plurality of holes 121 below the reference value, it is specified that the plurality of holes 121 are covered with the user's finger. The light intensity information analysis unit 202 can specify which hole 121 is covered with the user's finger among the holes 121 provided in the scanner button unit 111 by the above method. It is not limited to the method.

  The state storage unit 204 stores state information for specifying the current state of the document reading apparatus 100 and a processing determination table 500 as shown in FIG.

The status information includes, for example, the state of waiting for input of the telephone number of the other party who performs FAX communication, the state of waiting for the input of the number of copies, the state of waiting for the input of the copy magnification, and the like. This is information indicating the state. The state information includes a “scan format button mode” state in which the scanner button unit 111 is scanned while the carriage 113 is stopped at the first stop position, and a “normal mode” state in which the document on the glass table 112 is scanned. Contains information indicating.
The state information is updated by the CPU 701 described later every time the state of the document reading apparatus 100 changes. The state of the document reading apparatus 100 can be arbitrarily set, and may be set according to the purpose of use.

  As illustrated in FIG. 7, the processing determination table 500 includes, for example, a status column 501, an operation column 502, and a processing content column 503. The status column 501 stores information indicating the status of the document reading apparatus 100. For example, the information stored in the status column 501 matches the status information stored in the status storage unit 204. The operation column 502 stores information indicating an operation by the user. For example, the operation field 502 stores information such as the input of the telephone number of the communication partner, the number of copies to be copied, the input of the copy magnification, and the input of the abbreviated number. Further, the processing content column 503 stores the content of the next processing determined by the processing determination unit 203 described later. For example, the processing content column 503 stores information such as the start of FAX communication, the shift to the magnification input waiting process, the start of copying, the start of scanning, and the start of FAX communication with a registered partner. The information stored in the processing content column 503 may be information indicating the path of the execution program for the next process.

  Data in each column (501, 502, 503) is stored in association with one line.

  When receiving the notification from the light intensity information analysis unit 202 or the input unit 115, the process determination unit 203 accesses the state storage unit 204 and determines the next process. For example, the process determining unit 203 accesses the status storage unit 204 and determines the next process with reference to the status information of the document reading apparatus 100 and the process determination table 500 shown in FIG. Specifically, when receiving the notification from the light intensity information analysis unit 202 or the input unit 115, the process determination unit 203 first acquires the state information stored in the state storage unit 204. Next, the process determination unit 203 extracts information that matches the acquired state information from the state column 501 of the process determination table 500. Further, the process determining unit 203 extracts information corresponding to the notification received from the light intensity information analyzing unit 202 or the input unit 115 from the operation column 502 of the process determining table 500. The processing determination unit 203 extracts the processing content stored in association with both pieces of information extracted from the status column 501 and the operation column 502 from the processing content column 503. Thereby, the process determining unit 203 determines the next process.

  Further, the process determining unit 203 changes the state information stored in the state storage unit 204 when the next process is determined.

  Returning to FIG. 5, the carriage 113 includes a drive unit 301 and a light receiving unit 302. The drive unit 301 drives the carriage 113. For example, the drive unit 301 causes the carriage 113 to read a document on the glass table 112 in accordance with a control signal supplied from the carriage control unit 201. Further, the drive unit 301 causes the carriage 113 to read a user operation on the scanner button unit 111 in accordance with a control signal supplied from the carriage control unit 201. The light receiving unit 302 includes a plurality of light receiving elements 303 as described above, and performs a process of generating an electrical signal corresponding to the intensity of incident reflected light. The light receiving unit 302 performs a process of supplying the electric signal generated by each light receiving element 303 to the carriage control unit 201.

  The document reading apparatus 100 configured as described above includes, for example, a CPU 701, a main storage unit 702, an ASIC 703, and a NIC (Network Interface Card) for connecting to a communication network as shown in FIG. The present invention is realized by a general computer including a device 704, an external storage device 705 such as an HDD, and an input / output device 706 such as a carriage having a scan function, a display, a keyboard, and a mouse.

  For example, the light intensity information storage unit 213 and the state management unit 204 can be realized by the external storage device 705, and the control unit 200 loads a predetermined program stored in the external storage device 705 to the main storage device 702. The input unit 115, the scanner button unit 111, and the carriage 113 can be realized by the input / output device 706. The control unit 200 can also be realized by the ASIC 703.

  In addition, the predetermined program executed by the control unit 200 is downloaded from the network to the external storage device 705 via the communication device 704, and then loaded onto the main storage device 702 and executed by the CPU 701. Good. Alternatively, it may be loaded directly from the network onto the main storage device 702 via the communication device 704 and executed by the CPU 701.

  As described above, the document reading apparatus 100 is provided with the scanner button unit 111 instead of providing an operation panel such as a numeric keypad. With such a configuration, the document reading apparatus 100 can reduce the number of parts of the operation panel. Further, when the document reading apparatus 100 receives a user input from the scanner button unit 111, the document reading apparatus 100 receives the carriage 113 without moving it from the home position (first stop position). It can be done at high speed.

  FIG. 9 is a flowchart for explaining processing for receiving a user instruction from the scanner button unit 111 of the document reading apparatus 100.

  When the power of the document reading apparatus 100 is turned on, the control unit 200 activates the system in the normal mode. Specifically, the control unit 200 changes the state information in the state storage unit 204 to information indicating “normal mode”. At this time, the drive control unit 211 of the carriage control unit 201 supplies the carriage 113 with a control signal for moving the carriage 113 to the first stop position (home position). Thereby, the carriage 113 maintains the state stopped at the first position under the control of the drive unit 301.

  In this normal mode state, the control unit 200 stands by until an instruction for switching from the “normal mode” to the “scan format button mode” is input by the user (step S101; No). Specifically, the process determination unit 203 waits until a signal instructing switching to the “scan format button mode” is supplied from the input unit 115.

  Note that the document reading apparatus 100 can execute other processing such as FAX communication and copying while waiting for a mode switching instruction. For example, when the original on the glass table 112 is scanned in the “normal mode”, the carriage 113 performs a process of reading the original while moving in the scanning direction shown in FIGS.

  When the control unit 200 receives an instruction to switch to the “scan format button mode” (step S101; Yes), the control unit 200 executes a switching process from the “normal mode” to the “scan format button mode” (step S102). Specifically, the process determining unit 203 receives the state information stored in the state storage unit 204 as “scan format” when a signal instructing switching from the input unit 115 to “scan format button mode” is supplied. Change to information indicating "button mode". Then, the process determination unit 203 refers to the process determination table 500 stored in the state storage unit 204 and determines the next process. For example, the next process determined here may be a process of driving the carriage 113 to prepare for reading the scanner button unit 111.

  Subsequently, the control unit 200 causes the carriage 113 to read the scanner button unit 111 (step S103). Specifically, the drive control unit 211 supplies a control signal for driving the carriage 113 to the drive unit 301. At this time, the light receiving unit 302 of the carriage 113 irradiates light to the scanner button unit 111 and converts the light intensity of the reflected light into an electrical signal. The light receiving unit 302 supplies the converted electrical signal to the A / D converter 212. The A / D converter 212 converts the electrical signal supplied from the light receiving unit 302 into light intensity information 150 of a digital signal, and stores this in the light intensity information storage unit 213. Here, the light intensity information 150 stored in the light intensity information storage unit 213 is stored in the light intensity information column 412 of the light intensity information storage table 401 in association with the light receiving element number as shown in FIG. 6A. Is done.

  At this time, the light intensity information analysis unit 202 of the control unit 200 refers to the light intensity information 150 stored in the light intensity information storage unit 213 and the light receiving element correspondence table 403, and corresponds to each hole identification information. It is determined whether the light intensity information read from 121 is light intensity information indicating white or light intensity information indicating black (step S104). Specifically, the light intensity information analysis unit 202 calculates an average value of the corresponding light intensity information 150 for each hole identification number. Then, when the average value obtained is equal to or less than a predetermined reference value (for example, 50), the light intensity information analysis unit 202 determines that the light intensity information read from the hole 121 corresponding to the hole identification number is white. Is determined. On the other hand, when the obtained average value is larger than the reference value, the light intensity information analysis unit 202 determines that the light intensity information read from the hole 121 corresponding to the hole identification number indicates black. Thereby, it is possible to specify which hole 121 of the holes 121 provided in the scanner button unit 111 is covered by the user with a finger.

  Here, when the process determining unit 203 of the control unit 200 receives an instruction for determining a user operation on the scanner button unit 111 from the input unit 115 (step S105; Yes), the process proceeds to step S105. On the other hand, when the instruction from the input unit 115 is not received for a predetermined time (for example, 1 minute) (step S105; No), the process determining unit 203 returns the process to step S103. The process determination unit 203 uses an internal timer of the CPU 701 to measure the elapsed time since switching to the “scan format button mode” in step S102. Here, by repeating the processing of step S103 and step S104 until an instruction for determining the user's operation is received, for example, it is possible to continuously input numbers such as telephone numbers.

  In step S106, the process determining unit 203 performs a process of determining the next process based on the user's operation on the scanner button unit 111 specified in step S104 (step S106).

  After determining the next process in step S106, the control unit 200 determines whether or not an instruction to switch from the “scan format button mode” to the “normal mode” is input from the user (step S107). Specifically, the process determining unit 203 determines whether or not a signal instructing switching to the “scan format button mode” is supplied from the input unit 115 before a predetermined period (for example, 1 minute) has elapsed. To do.

  When the control unit 200 receives an instruction to switch to the “normal mode” (step S107; Yes), the control unit 200 executes a process of switching from the “scan format button mode” to the “normal mode” (step S108). Specifically, the processing determination unit 203 sets the “normal mode” as the state information stored in the state storage unit 204 when a signal instructing switching from the input unit 115 to the “normal mode” is supplied. Change to the information shown. Then, the process determination unit 203 refers to the process determination table 500 stored in the state storage unit 204 and determines the next process. For example, the next process determined here may be a process of stopping the power supply to the carriage 113. Thereafter, the control unit 200 shifts the process to step S101.

  On the other hand, in step S107, when the process determining unit 203 of the control unit 200 does not receive an instruction to switch to the “normal mode” for a predetermined period (step S107; No), the process proceeds to step S103.

  Through the above processing, the document reading apparatus 100 can read a user operation on the scanner button unit 111 using the carriage 113.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation and application are possible.

  For example, in the above embodiment, the control unit 200 includes the A / D converter 212 and the light intensity information storage unit 213. However, the present invention is not limited to this, and the carriage 113 may include the A / D converter 212 and the light intensity information storage unit 213.

  In the above embodiment, the scanner button unit 111 is provided with a plurality of holes 121, and a hole identification number 122 for the user to identify each hole 121 is described. However, this invention is not limited to this, For example, as shown to FIG. 10 (A), you may make the some hole 121 into the shape of the hole identification number 122. FIG.

  Further, the scanner button unit 111 may be provided with a plurality of switches 123 as shown in FIG. For example, the switch 123 is made by plastic molding. In the scanner button portion 111, a thin hole 121 as shown in FIG. As a result, the switch 123 is movable in the direction pressed by the user's finger. FIG. 11 shows a view of the document reading unit 103 viewed from a direction perpendicular to the Z plane shown in FIG. 2A when one of the switches 123 shown in FIG. 10B is pressed. As shown in FIG. 11, the lower surface of the switch 123 (surface in the direction of the carriage 113) is made flat so as to reflect the light irradiated by the carriage 113. When the switch 123 is pressed, the gap between the carriage 113 and the carriage 113 is reduced. Thereby, the light intensity of the light reflected on the lower surface of the switch 123 becomes larger than the light intensity of the light reflected on the lower surface of the switch 123 that is not pressed. Using this characteristic, the document reading apparatus 100 of the present application can specify which switch 123 of the switches 123 provided in the scanner button unit 111 is pressed by the user. A glass plate 124 is inserted between the switch 123 and the carriage 113 to limit the amount of pressing of the switch 123 by the user.

  In the above embodiment, the light intensity information 150 stored in the light intensity information storage table 401 is monochrome data. However, the present invention is not limited to this, and color data such as RGB data may be stored in the light intensity information storage table 401.

  Further, in the above-described embodiment, the region that transmits light disposed in the scanner button unit 111 is the hole 121. However, the present invention is not limited to this, and the region that transmits light is arbitrary as long as it transmits light. For example, glass may be used for a region that transmits light.

  In the above embodiment, the number of light receiving elements 303 provided in the carriage 113 is independent of the number of holes 121 arranged in the scanner button unit 111. However, in the present invention, the number of light receiving elements 303 and the number of holes 121 may be the same.

  Furthermore, the light intensity information 150 in the above embodiment may be information indicating illuminance, for example.

1 is a diagram for explaining an external appearance of a document reading apparatus according to an embodiment of the present invention. (A) It is a figure for demonstrating the external appearance of a document reading part. (B) It is a figure for demonstrating the external appearance of the original reading part provided with an ADF original reading part. (A) It is a figure for demonstrating the inside of the original reading part at the time of original reading. (B) It is a figure for demonstrating the inside of the original reading part at the time of scanner button part reading. It is a figure for demonstrating the external appearance of a scanner button part. 2 is a functional configuration diagram of a document reading device. FIG. (A) It is a figure which shows notionally the data structure of a light intensity information storage table. (B) It is a figure which shows notionally the data structure of the light receiving element corresponding | compatible table. It is a figure which shows notionally the data structure of a process determination table. 2 is a diagram illustrating an example of a hardware configuration of a document reading apparatus. FIG. It is a flowchart for demonstrating the process which receives a user's instruction | indication from a scanner button part. (A) It is a figure for demonstrating the external appearance when the shape of the hole of a scanner button part is made into a number. (B) It is a figure for demonstrating the external appearance at the time of providing a switch in a scanner button part. It is a figure for demonstrating the inside of the original document reading part at the time of the scanner button part provided with the switch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100: Document reading apparatus, 103: Document reading part, 111: Scanner button part, 112: Glass stand, 113: Carriage, 115: Input part, 121: Hole, 122: Hole identification information, 123: Switch, 124: Glass plate , 150: light intensity information, 200: control unit, 201: carriage control unit, 202: light intensity information analysis unit, 203: processing determination unit, 204: state storage unit, 211: drive control unit, 212: A / D converter 213: Light intensity information storage unit, 301: Drive unit, 302: Light receiving unit, 303: Light receiving element, 401: Light intensity information storage table, 402: Light receiving element correspondence table, 411: Light receiving element number column, 412: Light intensity Information column, 421: Hole identification number column, 422: Light receiving element number column, 500: Process determination table, 501: Status column, 502: Operation column, 503: In process Column, 701: CPU, 702: main memory, 703: ASIC, 704: communication device, 705: external storage device, 706: input and output device

Claims (8)

An original reading device for reading an original,
A panel in which a plurality of regions transmitting light are arranged;
A light receiving element group for detecting the light intensity of the reflected light of the light irradiated on the panel;
A light intensity information analysis unit that receives a signal converted according to the detected light intensity as a predetermined operation input;
An original reading apparatus comprising: The document reading device according to claim 1,
The light receiving element group includes:
Placed on the carriage,
Detecting the light intensity of the reflected light of the light applied to the panel at the carriage home position;
An original reading apparatus characterized by the above. The document reading device according to claim 2,
The carriage and the light receiving element group are:
The same one used when reading the document,
An original reading apparatus characterized by the above. A document reading apparatus according to any one of claims 1 to 3,
The area arranged on the panel is composed of a character shape for identifying the area.
An original reading apparatus characterized by the above. The document reading apparatus according to any one of claims 1 to 3,
In the region disposed on the panel, a switch having a plane that reflects the irradiated light is disposed,
The switch
Having a mechanism that, when pressed, increases the light intensity of reflected light by reducing the gap between the carriage and the plane;
An original reading apparatus characterized by the above. The document reading device according to any one of claims 1 to 5,
A light intensity information storage table for storing the light receiving element number for specifying the light receiving element and the light intensity information for specifying the light intensity detected by each light receiving element in association with each other;
Identification information for identifying each area arranged on the panel and a light receiving element number for specifying a light receiving element for detecting the light intensity of reflected light of the light irradiated on the area are stored in association with each other. Correspondence table,
With
The light intensity information analysis unit
The light receiving element number corresponding to the identification information stored in the correspondence table is acquired, the light intensity information storage table is accessed, and the average value of the light intensity information stored in association with the acquired light receiving element number is obtained. When the calculated average value is equal to or less than a predetermined reference value, the region corresponding to the identification information associated with the light receiving element number is identified as being operated.
An original reading apparatus characterized by the above. An input receiving method in an original reading apparatus for reading an original,
The document reading device includes:
A panel in which a plurality of regions transmitting light are arranged;
A light receiving element group for detecting the light intensity of the reflected light of the light irradiated on the panel;
With
A light intensity information analyzing step for receiving a signal converted according to the light intensity detected by the light receiving element group as a predetermined operation input;
An input receiving method characterized by comprising: A program that causes a computer to function as a document reading device that reads a document,
The computer
A panel in which a plurality of regions transmitting light are arranged;
A light receiving element group for detecting the light intensity of the reflected light of the light irradiated on the panel;
With
A light intensity information analysis process for receiving a signal converted according to the light intensity detected by the light receiving element as a predetermined operation input;
The program characterized by performing.

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