JP4842190B2 - Image reading apparatus, image reading apparatus control method, and control program - Google Patents

Description

  The present invention relates to an image reading apparatus such as a scanner that conveys an original using a conveyance mechanism and reads an image of the original, a control method for the image reading apparatus, and a control program.

  An example of this type of conventional image reading apparatus is shown in FIG.

  The image reading apparatus includes a lower unit 1 and an upper unit 2 supported so as to be rotatable in the vertical direction with respect to the lower unit 1 via a hinge 13. The document transport unit is opened and closed by the rotation of the upper unit 2. The open / closed state of the document transport unit is detected by the open / close detection sensor 37, and the transport path is formed when the document transport unit is closed so that the document can be transported.

  Then, the image reading apparatus starts an image reading operation based on an operation unit (not shown) or a control signal from the outside. First, the document table 7 is raised until the uppermost document 8 loaded on the document table 7 comes into contact with the pickup roller 6, and after the document table 7 is sufficiently raised, the pickup roller 6 and the feeding roller 6 are fed. The document 8 is fed to the transport path by the feed roller 4.

  When two or more documents 8 are picked up at once by the pickup roller 6, the documents are separated by the separation roller 11 and fed one by one to the conveyance path. The document 8 fed to the conveyance path is read by the reading sensor 12 on the conveyance path, and the image data is transferred to an image processing unit (not shown). The registration sensor 14 detects the leading and trailing ends of the document 8 conveyed on the conveyance path, and the conveyance timing and the like are controlled using the signal of the registration sensor 14.

  A platen roller 10 is disposed at a position facing the reading sensor 12 across the conveyance path of the document 8. The platen roller 10 is used as a background member that changes the background color of the read image of the document 8 by the reading sensor 12, and a predetermined gap is provided between the platen roller 10 and the reading sensor 12.

  That is, in the platen roller 10, for example, a substantially half-circumferential region of the outer peripheral surface is a black portion, and the remaining substantially semi-circular region is a white portion. By controlling the rotation operation of the platen roller 10, the background color of the document can be switched by arranging the black portion or the white portion at a position facing the reading sensor 12.

  In this case, switching the background color of the document to black makes it easy to emphasize the outline of the document, recognize the outline of the read document, and create image data that matches the outline. In addition, in a double-sided printing original that is easy to see through, the background color should be black because the original is transparent and printing on the back side is emphasized. On the other hand, for a document having a low density of printing or printing and having no printing or printing on the back side, the background color can be white to emphasize printing or printing. Thus, the background color is properly used depending on the type of document to be read. An image reading apparatus has also been proposed in which the background color of the document is switched without using a platen roller (Patent Document 1).

  The platen roller 10 is driven by a driving motor 15 such as a stepping motor, and rotates when the background color of the document is switched and when the reading surface of the reading sensor 12 is cleaned. At the time of document reading, the platen roller 10 is controlled to stop at a constant holding torque applied by the drive motor 15.

  The document 8 that has passed through the reading sensor 12 is transported downstream by the transport roller 3, and is discharged onto the discharge tray 9 by the discharge roller 5. A series of these document conveying operations is performed until timing is controlled so as to ensure a predetermined document interval, and all the documents 8 stacked on the document table 7 are conveyed. After all the documents 8 loaded on the document table 7 are transported, the document table 7 descends and returns to the home position.

The platen roller 10 is provided with a cleaning member 16 that cleans the reading surface of the reading sensor 12. When the platen roller 10 is rotated, the cleaning member 16 passes while contacting the reading surface of the reading sensor 12 to clean the reading surface (Patent Document 2).
Japanese Patent No. 2761736 Japanese Patent No. 3645737

  In the conventional image reading apparatus, when a large number of originals are conveyed, dirt attached to the cleaning member 16 when the reading surface of the reading sensor 12 is cleaned accumulates on the cleaning member 16. However, after cleaning the reading surface of the reading sensor 12, the cleaning member 16 is disposed at a position retracted from the conveyance path into the apparatus. For this reason, when cleaning the dirt deposited and accumulated on the cleaning member 16, it is necessary to disassemble the mechanism around the platen roller 10 and then remove the platen roller 10 from the main body device for cleaning. There is a problem that work is troublesome.

  SUMMARY An advantage of some aspects of the invention is that it provides an image reading apparatus, a method for controlling the image reading apparatus, and a control program that can easily remove dirt deposited and deposited on a cleaning member.

  In order to achieve the above object, an image reading apparatus of the present invention is an image reading apparatus that is provided so as to be openable and closable, and includes a document transport unit that forms a transport path for transporting a document in a closed state. A reading sensor for reading an image of a document being conveyed, a cleaning member for cleaning a reading surface of the reading sensor, a moving unit for moving the cleaning member, and an open / close detection unit for detecting an open / closed state of the document conveying unit And a control means for controlling the moving means to stop the cleaning member while being exposed from the original conveying section when the open / close detecting means detects the open state of the original conveying section. Features.

  An image reading apparatus of the present invention is an image reading apparatus that is provided so as to be openable and closable, and includes an original conveying unit that forms a conveying path for conveying an original in a closed state. A reading sensor for reading, a rotating member disposed at a position facing the reading sensor across the conveyance path, a driving means for rotating the rotating member, and a rotating member attached to the rotating member; A cleaning member that cleans the reading surface; an open / close detection unit that detects an open / closed state of the document conveying unit; and when the open / closed detection unit detects an open state of the document conveying unit, the cleaning member is moved to the document conveying unit. Control means for controlling the driving means so as to be stopped in a state where the exposure means is exposed.

  An image reading apparatus control method according to the present invention includes a document conveyance unit that is provided so as to be openable and closable and that forms a conveyance path for conveying a document in a closed state, and a reading sensor that reads an image of a document conveyed on the conveyance path; An open / close detection step for detecting an open / closed state of the document conveying unit, comprising: a cleaning member that cleans a reading surface of the reading sensor; and a moving unit that moves the cleaning member. And a control step for controlling the moving means so as to stop the cleaning member in a state where the cleaning member is exposed from the document conveying portion when the open state of the document conveying portion is detected by the opening / closing detecting step. Features.

  An image reading apparatus control method according to the present invention includes a document conveyance unit that is provided so as to be openable and closable and that forms a conveyance path for conveying a document in a closed state; , A rotating member disposed at a position facing the reading sensor across the conveyance path, a driving means for driving the rotating member to rotate, and attached to the rotating member to clean a reading surface of the reading sensor. And an opening / closing detecting step for detecting an open / closed state of the document conveying unit, and an open / closed detecting step for detecting the open / closed state of the document conveying unit. And a control step of controlling the driving means so as to stop the cleaning member in a state where the cleaning member is exposed from the document conveying section.

  A control program according to the present invention is provided so as to be openable and closable, and forms a conveyance path for conveying a document in a closed state, a reading sensor for reading an image of a document conveyed on the conveyance path, and the reading sensor An open / close detection module for detecting an open / closed state of the document conveying section, and a control program for an image reading apparatus, comprising: a cleaning member that cleans a reading surface of the image forming apparatus; and a moving unit that moves the cleaning member. When the module detects the open state of the document conveying unit, the computer executes a control module that controls the moving unit to stop the cleaning member in a state of being exposed from the document conveying unit. And

  A control program according to the present invention is provided so as to be openable and closable, and forms a conveyance path for conveying a document in a closed state, a reading sensor for reading an image of a document conveyed on the conveyance path, and the reading sensor A rotating member disposed at a position opposite to the conveyance path, a driving unit that rotationally drives the rotating member, and a cleaning member that is attached to the rotating member and cleans the reading surface of the reading sensor. And an open / close detection module for detecting an open / closed state of the document conveying unit, and when the open / closed detection module detects the open state of the document conveying unit, A control module that controls the driving unit to stop the document conveying unit while being exposed from the document conveying unit and a computer are executed.

  According to the present invention, when the open state of the document conveyance unit is detected, the cleaning member is stopped in a state where it is exposed to the document conveyance unit, so that the dirt adhered and accumulated on the cleaning member can be easily removed. .

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic sectional view for explaining an image reading apparatus which is an example of an embodiment of the present invention. The basic structure of the image reading apparatus as an example of the embodiment of the present invention is substantially the same as that of the conventional image reading apparatus already described with reference to FIG. Corresponding portions are denoted by the same reference numerals in the drawings, and description thereof is omitted or simplified.

  FIG. 1 is a view showing a state in which the upper unit 2 is pivoted upward with respect to the lower unit 1 via a hinge 13 so that the conveying portion of the document 8 is opened and the conveying portion is exposed.

  When the open / close detection sensor 37 detects the open state of the document conveying unit, a control circuit (not shown) drives a platen drive motor 15 such as a stepping motor, and the cleaning member 16 attached to the platen roller 25 is moved to the document conveying unit. The platen roller 25 is rotated so as to stop at the exposed position. In a state where the rotation of the platen roller 25 is stopped, a constant holding torque is applied by excitation of the platen drive motor 15. The holding torque may include holding torque generated by friction, mechanical load of gear, detent torque, and the like in addition to holding torque generated by excitation of the platen drive motor 15.

  The detection of the rotation of the platen roller 25 at the position where the cleaning member 16 is exposed to the document conveyance unit can be exemplified by detection by an optical sensor, a mechanical switch, or the like, but is not particularly limited. Further, it may not be detected that the platen roller 25 is rotated to a position where the cleaning member 16 is exposed to the document conveying portion. For example, the platen roller 25 is configured to be rotatable within a range of a predetermined rotation angle, and the platen roller 25 is rotated by controlling the rotational drive amount of the platen drive motor 15 from a predetermined rotation limit position, whereby the cleaning member 16 is rotated. May be stopped at a position exposed to the document conveying section.

  Next, the platen roller 25 will be described with reference to FIG.

  As shown in FIG. 3, the platen roller (rotating member) 25 includes a semi-cylindrical black member 26, a semi-cylindrical white member 27, and a cleaning member 16 that cleans the reading surface of the reading sensor 12. .

  For example, cylindrical fitting portions 26a and 26e and fitting portions 26c that protrude in the same axial direction are provided coaxially at both the axial end portions and the axial central portion of the black member 26, respectively. Further, a semi-disc-shaped light shielding portion 26 f for detecting the rotational position of the platen roller 25 is provided in the vicinity of the fitting portion 26 e of the black member 26. The shape and size of the light shielding part 26f are not particularly limited.

  The light shielding portion 26f shields the light receiving portion of the platen roller position detection sensor 35 (see FIGS. 7 and 8) configured by a photo interrupter or the like by the rotation of the platen roller 25. The light shielding part 26f is formed of the same member as the black member 26. Thereby, it is not necessary to separately provide a member for shielding the light receiving part of the platen roller position detection sensor 35, the structure is simplified, and the cost can be reduced.

  In addition, when the light transmittance of the white member 27 is low, it is also possible to form the light shielding portion on the white member 27 with the same member.

  For example, cylindrical fitted portions 27a and 27e and fitted portions 27c in which the fitted portions 26a and 26e and the fitted portions 26c are fitted in the axial direction are respectively provided at both axial end portions and the axial center portion of the white member 27. It is provided on the same axis.

  In order to combine the black member 26 and the white member 27, first, the fitting portions 26a and 26e and the fitting portion 26c of the black member 26 are axially arranged with respect to the fitting portions 27a and 27e and the fitting portion 27c of the white member 27. The black member 26 and the white member 27 are aligned in the radial direction while being shifted to one end side (left end side in the figure). At this time, the cleaning member 16 is interposed between the joint portions on one side of the joint portions on both sides along the axial direction of the black member 26 and the white member 27.

  Next, the black member 26 is slid relative to the white member 27 toward the other end side in the axial direction (the right end side in the drawing), so that the fitting portions 26 a and 26 e and the fitting portion 26 c of the black member 26 become the white member 27. The fitting parts 27a and 27e and the fitting part 27c are fitted in the axial direction. Thus, the black member 26 and the white member 27 are combined, and the cleaning member 16 is attached in a state of protruding between the black member 26 and the white member 27. In addition, after combining in this way, the black member 26 and the white member 27 are prevented from coming off by a snap fit (not shown) or the like so as not to come off.

  Thereafter, the shaft 29 is inserted into the inner peripheral portions of the fitting portions 26a, 26c, and 26e of the black member 26, whereby the cylindrical platen roller 25 in which the shaft 29 protrudes at both ends in the axial direction is formed. In addition, the uneven | corrugated fitting structure of the black member 26 and the white member 27 is not specifically limited, A various uneven | corrugated fitting structure is employable.

  FIG. 2 is a perspective view of a platen roller unit (rotating member unit) 17 including a platen roller 25, holding members 21 and 22, and a conveyance guide 18.

  The holding members 21 and 22 hold a conveyance guide 18 that guides the document 8 being conveyed, and rotatably hold shafts 29 that protrude from both end portions in the axial direction of the platen roller 25 via bearings 19 and 20. is doing.

  After the platen roller unit 17 is mounted on the main body device, a predetermined gap is secured between the platen roller 25 and the reading sensor 12 by the reading sensor 12 coming into contact with the spacer portions 21 a and 22 a of the holding members 21 and 22. Is done.

  FIG. 4 is a diagram illustrating a state in which the platen roller unit 17 is attached to the main body device.

  In order to attach the platen roller unit 17 to the main unit, first, the upper unit 2 is opened with respect to the lower unit 1 as shown in FIG. On both side walls in the width direction perpendicular to the conveyance direction of the document 8 of the upper unit 2, as shown in FIG. 4, mounting portions 33 cut out in a substantially U shape are provided.

  Then, the platen roller unit 17 is disposed on the mounting portions 33 of the upper unit 2 in the state where the conveyance guide 18 is disposed above and the axis of the platen roller 25 is disposed in the width direction of the upper unit 2. Insert.

  In this state, the platen roller unit 17 is attached to the upper unit 2 by rotating the platen roller unit 17 around the axis of the platen roller 25.

  Specifically, as shown in FIG. 4, a protrusion 34 is provided above the attachment portion 33 of the upper unit 2, and the bearing portions 19 and 20 provided on the holding members 21 and 22 of the platen roller unit 17 are provided on the bearing portions 19 and 20. , Each arm portion 20a is fixed. The arm portion 20a may be formed integrally with the bearing portions 19 and 20 and the holding members 21 and 22.

  The arm portion 20a is formed of a flexible member, and the arm portion 20a is provided with a latching portion 20b that detachably latches on the protrusion 34 of the upper unit 2.

  Then, as shown in FIGS. 5 and 6, the bearing portions 19 and 20 of the platen roller unit 17 are inserted into the mounting portions 33 and 33 of the upper unit 2 with the conveying guide 18 disposed upward (see FIG. 5). 5).

  In this state, when the platen roller unit 17 is rotated 90 ° around the axis of the platen roller 25 (in the direction of the arrow in FIG. 5), the arm 20a bends and gets over the projection 34, and the latching portion 20b is fitted into the projection 34 ( (See FIG. 6). Thereby, the platen roller unit 17 can be easily attached to the upper unit 2.

  On the other hand, when removing the platen roller unit 17 from the upper unit 2, the arm 20 a is bent and the latching portion 20 b is removed from the protrusion 34, and then the platen roller unit 17 is subjected to a process reverse to the above-described attaching process. Can be easily removed from the upper unit 2. The platen roller unit 22 is detachably attached to the lower unit 1 as well as the upper unit 2 in the same manner as described above.

  FIG. 7 is a view showing a state in which the platen roller unit 17 is attached to the main body apparatus. When the platen roller unit 17 is attached to the main unit, the gear 32 on the main unit side meshes with the gear 31 fixed to the shaft 29 protruding from the end opposite to the light shielding part 26f of the platen roller 25. The gear 32a fixed to the motor shaft of the platen drive motor 15 is meshed with the gear 32a. Accordingly, the platen roller 25 is rotationally driven by the drive of the platen drive motor 15.

  As a result, the light shielding portion 26f attached to the platen roller 25 can enter a position where the light receiving portion of the platen roller position detection sensor 35 can be shielded, and a control circuit (not shown) recognizes the rotational position of the platen roller 25 and detects the platen roller 25. The rotational operation of the roller 25 can be controlled.

  That is, referring to FIG. 8, the control circuit detects the rotational position of platen roller 25 based on the time point when the output of platen roller position detection sensor 35 is changed by light shielding portion 26 f attached to platen roller 25. Thereafter, by driving the platen drive motor 15 by a specified amount, the platen roller 25 can be rotated to an arbitrary position.

  Thus, the rotation operation of the platen roller 25 is controlled so that the cleaning member 16 stops at a position where the cleaning member 16 is exposed to the document transport section when the open / close detection sensor 37 detects the open state of the document transport section.

  In the example of FIG. 8, when the cleaning member 16 is exposed to the document conveyance unit, the light shielding unit 26 f of the platen roller 25 shields the light receiving unit of the platen roller position detection sensor 35.

  Further, the cleaning member 16 is removed by stopping the rotation of the platen roller 25 immediately after detecting that the light receiving part of the platen roller position detection sensor 35 has been shielded from the state where it is not shielded by the light shielding part 26f. The document is stopped in the state where it is exposed to the document conveying section.

  When it is detected that the light receiving portion of the platen roller position detection sensor 35 is shielded by the light shielding portion 26f of the platen roller 25, the platen roller 25 does not rotate when the user cleans the cleaning member 16 exposed to the document conveying portion. Thus, a constant holding torque is applied to the platen drive motor 15.

  When the platen roller unit 17 is removed from the main body device and the cleaning member 16 is cleaned, the light receiving part of the platen roller position detection sensor 35 is not shielded by the light shielding part 26 f of the platen roller 25. In this case, the control circuit determines that the platen roller unit 17 has been removed from the main body device, and stops applying the holding torque to the platen drive motor 15.

  Next, with reference to FIG. 9, an operation example of the image reading apparatus which is an example of the embodiment of the present invention will be described. In FIG. 9, processing from a state in which the upper unit 2 is opened and rotated upward to open the document conveyance unit to a state in which the upper unit is closed and rotated downward to close the document conveyance path (normal state) will be described. Each process in FIG. 9 is executed by a CPU or the like mounted on a control circuit by loading a control program stored in a storage unit (ROM, hard disk, or the like) of the main apparatus into a RAM or the like.

  When the upper unit 2 is rotated upward and the open / close detection sensor 37 detects that the document conveying unit is opened, the platen drive motor 15 is stopped so that the cleaning member 16 stops at a position where it is exposed to the document conveying unit. The drive is controlled to rotate the platen roller 25 (step S1).

  Next, in step S2, a constant holding torque is applied to the platen drive motor 15 so that the platen roller 25 does not rotate during cleaning of the cleaning member 16, and the platen roller 25 is held, and the process proceeds to step S3.

  In step S3, while the document conveyance unit is in the open state, it is determined whether or not the document conveyance unit is returned to the closed state (normal state) based on the detection signal of the open / close detection sensor 37, and the return cannot be confirmed. If YES in step S4, the process advances to step S4. If return can be confirmed, the process advances to step S6.

  In step S4, it is determined whether or not it is detected that the light receiving portion of the platen roller position detection sensor 35 is shielded by the light shielding portion 26f of the platen roller 10. If so, the process returns to step S3 to detect If not, the process proceeds to step S5.

  In step S5, the application of the holding torque by the platen drive motor 15 is stopped, the power consumption of the motor is reduced, and then the process returns to step S3.

  On the other hand, if the return can be confirmed in step S3, the process proceeds to step S6, and the platen drive motor 15 is driven so that the platen roller 25 rotates one or more times. Thereby, the cleaning surface of the reading sensor 12 is cleaned by the cleaning member 16.

  Next, in step S7, it is determined whether or not it is detected that the light receiving portion of the platen roller position detection sensor 35 is shielded by the light shielding portion 26f of the platen roller 10 during the rotation of the platen roller 25 in step S6. If detected, the process proceeds to step S8. If not detected, the process proceeds to step S9.

  In step S <b> 8, the platen drive motor 15 is driven to rotate the platen roller 25 so that the background color member set out of the white member 27 and the black member 26 of the platen roller 25 faces the reading sensor 12. At the same time, the cleaning member 16 is retracted to the storage position, and the series of processes is completed.

  On the other hand, in step S9, it is determined that the platen roller unit 17 is not attached to the main body apparatus, processing such as error display is executed, and the series of processing ends.

  As described above, in this embodiment, when it is detected that the document conveying section is opened, the cleaning member 16 attached to the platen roller 25 is exposed to the document conveying section and stops. Dirt adhering to and depositing on the surface can be easily removed, and the occurrence of image defects can be suppressed.

  Further, when the platen roller unit 17 is removed from the main body device and the cleaning member 16 is cleaned, unnecessary holding torque is not applied to the platen drive motor 15, which can contribute to energy saving.

  Further, when the platen roller unit 17 is attached to the main body device, since the holding torque is not applied to the platen drive motor 15, the gears 31, 32a and 32 freely rotate, and the attachment work of the platen roller unit 17 is smoothly performed. Can be done.

  In addition, this invention is not limited to what was illustrated to the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.

  For example, in the above-described embodiment, the case where the cleaning member is attached to the platen roller has been illustrated. However, the present invention is not limited to this. For example, the cleaning member is moved between a position where the cleaning member is exposed to the document conveyance unit and a position where the cleaning member is not exposed. A moving mechanism may be provided, and the moving mechanism may be controlled so that the cleaning member is exposed when the opening of the document conveying unit is detected.

  In addition, the cleaning member is not always exposed when the document conveyance unit is opened, and the document conveyance is performed when an abnormality is detected in the image reading signal or the read image data when acquiring shading correction data. The cleaning member may be exposed according to the opening of the part. In addition, the cleaning member may be exposed in accordance with the opening of the document conveying portion every time a predetermined number of documents are conveyed.

  The object of the present invention is achieved by executing the following processing. That is, a storage medium that records a program code of software that realizes the functions of the above-described embodiments is supplied to a system or apparatus, and a computer (or CPU, MPU, etc.) of the system or apparatus is stored in the storage medium. This is the process of reading the code.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the program code and the storage medium storing the program code constitute the present invention.

  Moreover, the following can be used as a storage medium for supplying the program code. For example, floppy (registered trademark) disk, hard disk, magneto-optical disk, CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW, magnetic tape, nonvolatile memory card, ROM or the like. Alternatively, the program code may be downloaded via a network.

  Further, the present invention includes a case where the function of the above-described embodiment is realized by executing the program code read by the computer. In addition, an OS (operating system) running on the computer performs part or all of the actual processing based on an instruction of the program code, and the functions of the above-described embodiments are realized by the processing. Is also included.

  Furthermore, a case where the functions of the above-described embodiment are realized by the following processing is also included in the present invention. That is, the program code read from the storage medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, based on the instruction of the program code, the CPU or the like provided in the function expansion board or function expansion unit performs part or all of the actual processing.

1 is a schematic cross-sectional view for explaining an image reading apparatus which is an example of an embodiment of the present invention. It is a perspective view for demonstrating a platen roller unit. It is a disassembled perspective view for demonstrating a platen roller. It is a figure for demonstrating the example of attachment of a platen roller unit. It is a figure for demonstrating the example of attachment of a platen roller unit. It is a figure for demonstrating the example of attachment of a platen roller unit. It is a figure for demonstrating the connection example of a main body apparatus and a platen roller unit. It is a figure for demonstrating the positional relationship of the platen roller unit at the time of cleaning of a cleaning member. FIG. 6 is a flowchart for explaining an operation example of an image reading apparatus which is an example of an embodiment of the present invention. It is a schematic sectional drawing for demonstrating the conventional image reading apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower unit 2 Upper unit 3 Conveyance roller 4 Feeding roller 5 Discharge roller 6 Pickup roller 7 Document base 8 Document 9 Discharge tray 11 Separation roller 12 Reading sensor 13 Hinge 15 Platen drive motor 16 Cleaning member 17 Platen roller unit 18 Conveyance Guides 19, 20 Bearing portion 20a Arms 21, 22 Holding members 21a, 22a Spacer portion 25 Platen roller 26 Black members 26a, 26c, 26e Insertion portion 26f Light-shielding portion 27 White members 27a, 27c, 27e Insertion portion 29 Shafts 31, 32a , 32 Gear 33 Mounting portion 35 Platen roller position detection sensor 37 Opening / closing detection sensor

Claims (11)

An image reading apparatus provided with a document conveying portion provided so as to be openable and closable and forming a conveyance path for conveying a document in a closed state,
A reading sensor for reading an image of a document conveyed on the conveyance path;
A cleaning member for cleaning the reading surface of the reading sensor;
Moving means for moving the cleaning member;
Open / close detecting means for detecting an open / closed state of the document conveying section;
Control means for controlling the moving means so as to stop the cleaning member in a state where the cleaning member is exposed from the original conveying section when the open / close detecting means detects the open state of the original conveying section. An image reading apparatus. An image reading apparatus provided with a document conveying portion provided so as to be openable and closable and forming a conveyance path for conveying a document in a closed state
A reading sensor for reading an image of a document conveyed on the conveyance path;
A rotating member disposed at a position facing the reading sensor across the conveyance path;
Drive means for rotationally driving the rotating member;
A cleaning member attached to the rotating member and cleaning a reading surface of the reading sensor;
Open / close detecting means for detecting an open / closed state of the document conveying section;
Control means for controlling the driving means so as to stop the cleaning member in a state where the cleaning member is exposed from the original conveying section when the open / close detecting means detects the open state of the original conveying section. An image reading apparatus.   A rotating member unit in which the rotating member, a conveyance guide that guides a document to be conveyed in the conveying direction, and a holding member that rotatably holds both ends of the rotating member are integrated is detachably disposed. The image reading apparatus according to claim 2. A rotation position detecting means for detecting a rotation position of the rotation member;
When the open state of the document conveying unit is detected by the opening / closing detecting unit and the rotational position of the rotating member is not detected by the rotational position detecting unit, the control unit exposes the cleaning member from the document conveying unit. The image reading apparatus according to claim 2, wherein the driving unit is controlled so as to stop driving to be stopped at a position where the driving is performed.   The control means controls the driving means so that the rotating member rotates one or more times when the opening / closing detecting means detects the return of the document conveying unit from the open state to the closed state, and the rotating member 5. The image reading apparatus according to claim 4, wherein when the rotation position detection unit cannot detect the rotation position of the rotation member during rotation, the rotation member unit is determined not to be mounted.   The rotating member is formed in a cylindrical shape by combining two arc tube members having different colors with each other, and the control unit causes the opening / closing detection unit to return the document conveying unit from the open state to the closed state. When detected, based on the detection information of the rotational position detection means, the driving means is arranged so that the surface of the arc cylinder member of a color selected in advance of the two arc cylinder members faces the reading sensor. 6. The image reading apparatus according to 4 or 5, wherein the image reading apparatus is controlled.   One arc cylinder member of the two arc cylinder members is a semi-cylindrical black member, the other arc cylinder member is a semi-cylindrical white member, and at least one of the black member and the white member The image reading apparatus according to claim 4, further comprising: a light shielding portion, wherein the rotational position detecting unit optically detects movement of the light shielding portion. A document conveying portion which is provided so as to be openable and closable and forms a conveyance path for conveying a document in a closed state, a reading sensor for reading an image of the document conveyed on the conveyance path, and cleaning for cleaning a reading surface of the reading sensor A control method of an image reading apparatus comprising: a member; and a moving unit that moves the cleaning member,
An open / close detecting step for detecting an open / closed state of the document conveying section;
And a control step for controlling the moving means to stop the cleaning member in a state where the cleaning member is exposed from the document transport section when the open state of the document transport section is detected by the opening / closing detection step. A method for controlling the image reading apparatus. A document conveying section that is provided so as to be openable and closable and forms a conveying path for conveying an original document in a closed state, a reading sensor that reads an image of an original document that is conveyed along the conveying path, and the conveying path for the reading sensor. An image reading apparatus comprising: a rotating member disposed at a position opposed to the holding member; a driving unit that rotationally drives the rotating member; and a cleaning member that is attached to the rotating member and cleans the reading surface of the reading sensor. A control method,
An open / close detecting step for detecting an open / closed state of the document conveying section;
And a control step for controlling the driving means so as to stop the cleaning member in a state where the cleaning member is exposed from the document conveying unit when the open state of the document conveying unit is detected by the opening / closing detecting step. A method for controlling the image reading apparatus. A document conveying portion which is provided so as to be openable and closable and forms a conveyance path for conveying a document in a closed state, a reading sensor for reading an image of the document conveyed on the conveyance path, and cleaning for cleaning a reading surface of the reading sensor A control program for an image reading apparatus comprising a member and a moving means for moving the cleaning member,
An open / close detection module for detecting an open / closed state of the document conveying section;
When the open / close detection module detects the open state of the document conveying unit, the computer executes a control module that controls the moving unit to stop the cleaning member in a state of being exposed from the document conveying unit. A control program characterized by that. A document conveying section that is provided so as to be openable and closable and forms a conveying path for conveying an original document in a closed state, a reading sensor that reads an image of an original document that is conveyed along the conveying path, and the conveying path for the reading sensor. An image reading apparatus comprising: a rotating member disposed at a position opposed to the holding member; a driving unit that rotationally drives the rotating member; and a cleaning member that is attached to the rotating member and cleans the reading surface of the reading sensor. A control program,
An open / close detection module for detecting an open / closed state of the document conveying section;
When the open / close detection module detects the open state of the document conveyance unit, the computer executes the control module that controls the driving unit to stop the cleaning member in a state of being exposed from the document conveyance unit. A control program characterized by

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