JP2009169047A - Copying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a copying machine reducing erroneous copying. <P>SOLUTION: The copying machine 1 includes: a copying machine body 100 having a document table 110 on which a document is placed; a document table cover 120 freely opened or closed relative to the document table 110; an opening/closing mechanism 140 disposed at one end of the upper face of the copying machine body 100 and used to open or close the document table 120; an image reader 270 that reads a document placed on the document table 110; a projection optical unit 170 by which the image information of a document placed on the document table 110 and a copying guide frame indicating the area to be copied are projected as an image light from the upper surface of the copying machine body 100 toward the surface of the document table cover 120 opposite to the document table 110; and a control section 200 that controls at least the image reader 270 and projection optical unit 170. The control section 200 has a function of controlling the projection optical unit 170 so that image light is projected from the projection optical unit 170 when the document table cover 120 is opened. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a copying machine.

  2. Description of the Related Art Conventionally, a copy machine including a copying machine main body having a document table on which a document is placed, a document table cover configured to be openable and closable with respect to the document table, and an image reading device that reads the document placed on the document table. The machine is known (for example, refer to Patent Document 1). In a conventional copying machine, after placing an original on the platen, closing the platen cover, setting the direction and size of the copy paper, the number of copies, etc. on the operation panel, and then pressing the copy start button, Duplicating.

JP 2006-33675 A

  By the way, in the conventional copying machine, if the setting of the direction and size of the copy paper is wrong with respect to the direction and size of the document placed on the document table, or the document is not placed at the correct position on the document table. There is a problem that an intended portion of a document is not copied or is copied with a paper size exceeding an assumed size (hereinafter abbreviated as a copying error).

  Accordingly, the present invention has been made to solve such a problem, and an object thereof is to provide a copying machine capable of reducing copying errors.

  The copying machine according to the present invention includes a copying machine main body having a document table on which a document is placed, a document table cover configured to be openable and closable with respect to the document table, and an end of an upper surface of the copying machine body. An opening / closing mechanism for opening and closing the document table cover, an image reading device for reading a document placed on the document table, and a surface of the document table cover facing the document table from the upper surface of the copying machine body A projection optical unit that projects image information of a document placed on the document table and a copy guide frame representing an area to be copied as image light, and at least the image reading device and the projection optical A control unit that controls the unit, and the control unit has a function of controlling the projection optical unit so that the image light is projected from the projection optical unit when the document table cover is opened. And wherein the Rukoto.

Therefore, according to the copying machine of the present invention, the document table cover is placed on the surface of the document table cover that faces the document table when the document table cover is opened (hereinafter also referred to as the back surface of the document table cover). Since the image information of the placed document and the copy guide frame representing the area to be copied are projected, these projected images can be confirmed once before copying. As a result, it is possible to almost eliminate errors in setting the orientation and size of the copy paper with respect to the orientation and size of the document placed on the document table, and it is possible to reduce duplication errors caused by this. Even if the document is not placed at the correct position on the platen, the position of the document can be corrected before copying by checking the projected image projected on the back of the platen cover. Therefore, it is possible to reduce copying errors caused by the position of the original.
Therefore, the copying machine of the present invention is a copying machine that can reduce copying errors.

  By the way, considering only reducing copying mistakes, for example, an operation panel having a liquid crystal display is used as the operation panel, and the document placed on the document table is pre-scanned before copying and pre-scanned. A means of displaying an image on the liquid crystal display of the operation panel is not conceivable, but in this case, the liquid crystal display provided on the operation panel is relatively small (several centimeters square). There is a problem that it is difficult to see. Although it is conceivable to enlarge the liquid crystal display in order to eliminate the difficulty in viewing the screen, there is a problem that the operation panel is enlarged and the copying machine is also enlarged. In addition, since a large liquid crystal display is expensive, there is a problem that the cost of the copying machine increases.

  On the other hand, according to the copying machine of the present invention, for example, by using the entire back surface of the document table cover as the projection area of the projection optical unit, the document can be confirmed with an image having the same size as the actual document. Therefore, the projected image does not become difficult to see. Further, since the rear surface of the document table cover that appears when the document table cover is opened is used as the projection surface, the operation panel does not increase in size and the copying machine does not increase in size. In the copying machine of the present invention, it is a matter of course that a projection optical unit that projects a high-resolution color image may be used. Therefore, a projection optical unit that projects a monochrome image can be used, or a projection optical unit that projects a color image with a relatively low resolution (for example, about VGA) can be used. it can. That is, according to the copying machine of the present invention, it is possible to suppress the cost increase of the copying machine as much as possible as compared with the case of using a large liquid crystal display.

  In the copying machine of the present invention, it is preferable that the projection optical unit is a proximity projection type projection optical unit.

  The proximity projection type projection optical unit is a projection optical unit capable of displaying a large screen at a short projection distance, and is a projection optical unit including an ultrashort focus optical system. According to the copying machine of the present invention, since the proximity projection type projection optical unit is provided, an image with little distortion can be formed on the back surface of the document table cover at a relatively short distance from the projection optical unit. It becomes possible.

  In the copying machine of the present invention, it is preferable that the image light from the projection optical unit is projected from a position between the document table and the opening / closing mechanism on the upper surface of the copying machine main body.

  A person who uses a copier (hereinafter referred to as a user) usually adjusts the position of a document placed on the document table while standing on the opposite side of the opening / closing mechanism with the document table in between. Although the operation panel setting work is performed, it is possible to suppress the user's body from blocking the image light of the projection optical unit when performing the work by configuring as described above. Become.

  In the copying machine of the present invention, a reflective surface for reflecting the image light from the projection optical unit toward the user of the copying machine is disposed on a surface of the document table cover facing the document table. It is preferable.

  Since the back surface of the platen cover is generally made of a white material, it goes without saying that image light from the projection optical unit can be projected and displayed without difficulty even in a copying machine that does not have the above reflecting surface. By providing the reflecting surface, it is possible to project and display a clear image with high brightness.

  In the copying machine of the present invention, the image reading device has a function of pre-scanning the document placed on the document table, and the image information of the document in the image light projected from the projection optical unit is: It is preferable that the image be pre-scanned by the image reading device.

  With this configuration, it is possible to reliably confirm the orientation and size of the document placed on the document table, the position of the document, and the like.

  The copying machine of the present invention further includes an imaging device that is disposed below the document table and photographs the document placed on the document table, and the document in the image light projected from the projection optical unit. The image information is preferably an image taken by the imaging device.

  With this configuration, it is possible to reliably confirm the orientation and size of the document placed on the document table, the position of the document, and the like. Further, it is possible to shorten the time required to check the document as compared with the case of using the pre-scanned image described above, and it is possible to adjust the position of the document in real time.

  The copier of the present invention further includes a detection unit that detects opening and closing of the document table cover, and the control unit detects the projection optical only when the detection unit detects that the document table cover is opened. It is preferable to have a function of controlling the projection optical unit so that the image light is projected from the unit.

  With this configuration, it is possible to realize a configuration in which image light is projected onto the back surface of the document table cover only when the document table cover is opened.

  In the copying machine of the present invention, the operation panel having an operation button having a function of changing at least one of the position, size and shape of the copy guide frame, and the copy guide frame change information by the operation button It is preferable that the image forming apparatus further includes a copy guide frame processing unit that changes at least one of the position, size, and shape of the copy guide frame in the image light projected from the projection optical unit.

  In the copying machine of the present invention, when the area to be actually copied in the image projected on the back surface of the platen cover does not match the copy guide frame, the position of the document placed on the platen is readjusted. However, by configuring as described above, the area to be actually copied in the document and the copy guide frame can be obtained by software operation without having to re-adjust the position of the document. Can be combined.

  Hereinafter, a copying machine of the present invention will be described based on an embodiment shown in the drawings.

[Embodiment 1]
FIG. 1 is an overall perspective view of the copying machine 1 according to the first embodiment. FIG. 1A is an overall perspective view of the copying machine 1 when the document table cover 120 is opened, and FIG. 1B is an overall perspective view of the copying machine 1 when the document table cover 120 is closed. FIG. 2 is a perspective view showing a state in which image light is projected from the projection optical unit 170. 3 and 4 are diagrams for explaining the configuration of the copying machine 1. FIG. 5 is a diagram for explaining the copying machine 1 according to the first embodiment. FIGS. 5A to 5C are diagrams showing image light projected on the back surface of the document table cover 120. FIG. 5A shows a state when the position of the copy guide frame 20 is changed. FIG. 5B is a diagram showing a state when the size of the copy guide frame 20 is changed, and FIG. 5C is a diagram when the shape of the copy guide frame 20 is changed. FIG.

  The copying machine 1 according to the first embodiment is a copying machine as a multifunction machine having both a copying function (copying function) and a facsimile function as shown in FIGS. A copying machine main body 100 having a document table (also referred to as platen glass) 110 placed thereon, a document table cover (also referred to as a platen cover) 120 configured to be openable and closable with respect to the document table 110, and the copying machine main body 100. An opening / closing mechanism 140 for opening / closing the document table cover 120, a detection unit 150 for detecting opening / closing of the document table cover 120, an operation panel 160, a projection optical unit 170, a document table. 110, an image pickup apparatus 180 for photographing the document 10 placed on 110, a control unit 200, an NCU (Network Control Unit) 210, a MODEM 220, and a ROM 23. A RAM 240, an image memory 250, a CODEC (Coder and Decoder) 260, an image reading device 270 that reads a document placed on the document table 110, a copy guide frame processing unit 280, A printer 290 is provided, and these units are connected via a bus B.

  The document table cover 120 is provided with an ADF (Automatic Document Feeder) 130. A document feed member 134 for feeding the document supplied to the document supply port 132 of the ADF 130 is provided on the surface of the document table cover 120 facing the document table 110 (the back surface of the document table cover 120). The document feeding member 134 includes a plurality of rollers and a belt member that is stretched around these rollers, although the illustration is omitted. Since the belt member is made of a white material, it is possible to project image light from a projection optical unit 170 described later. The document fed by the document feeding member 134 is discharged from the document discharge port 136 to the document receiver 138.

  The opening / closing mechanism 140 is composed of a hinge mechanism, for example, and is disposed on the back side of the upper surface of the copying machine main body 1.

  The detection unit 150 includes a protrusion 152 disposed on the upper surface of the document table cover 120. The protrusion 152 protrudes from the upper surface of the copying machine main body 100 when the document table cover 120 is opened. When the document table cover 120 is closed, the projecting portion 152 is pushed by the document table cover 120 and is higher than the upper surface of the copying machine body 100. Retracted. The detection unit 150 detects the opening / closing of the document table cover 120 based on a change in the protruding state of the protrusion 152, and outputs information on the opening / closing state of the document table cover 120.

  The operation panel 160 is disposed on the front side of the copying machine main body 1 and has operation buttons (operation keys) 162 such as a start button, a stop button, a clear button, a copy / fax mode switching button, a numeric keypad, and a cross direction operation button. And a display unit 164 for displaying various information (character messages) such as the operating state of the copying machine 1. The operation button 162 also includes an operation button for changing the position, size, or shape of the copy guide frame 20 and a shooting start button for starting shooting of the document 10 by the imaging device 180. The display unit 164 is configured by a liquid crystal display, for example. Note that the display unit 164 may be a touch panel display, and operations using the various operation buttons described above may be performed on the display unit 164.

The projection optical unit 170 is modulated by an illuminating device having a light source lamp, an electro-optic modulation device that modulates light from the illuminating device according to image information, and an electro-optic modulation device. A projection optical unit that projects a color image with a relatively low resolution (for example, about VGA). As shown in FIG. 2 or 4, the projection optical unit 170 and the reflection mirror 172 are disposed inside the copying machine main body 100 on the back side of the document table 110 (the space between the document table 110 and the opening / closing mechanism 140). ing. The projection image from the projection optical unit 170 is reflected by the reflection mirror 172 and projected onto the back surface of the document table cover 120. The projected image is composed of image information of the document 10 placed on the document table 110 and a copy guide frame 20 representing an area to be copied.
Information relating to the output paper is also projected in the vicinity of the copy guide frame 20 (see FIG. 5B). For example, if the size of the copy guide frame 20 is A4 vertical size, the characters “A4 vertical” are displayed near the copy guide frame 20, and if the size of the copy guide frame 20 is A3 size, the copy guide frame 20 is displayed. The characters “A3” are displayed in the vicinity of.

  As the light source lamp, for example, a metal halide lamp, a high-pressure mercury lamp, an ultra-high pressure mercury lamp, or the like can be used. A solid light source such as an LED may be used instead of the light source lamp.

  As an electro-optic modulator, a liquid crystal device having a function of emitting image light representing an image to a projection optical system by modulating light from the illumination device with a liquid crystal and a polarizing plate in accordance with image information, and illumination A reflection direction control type light modulation device (for example, DMD) having a function of emitting image light representing an image to a projection optical system by reflecting light from the device with a micromirror corresponding to each pixel according to image information (Digital Micromirror Device) (trademark of TI) can be used.

  Further, since the projection optical unit 170 is a close projection type projection optical unit including an ultrashort focus optical system, it is possible to display a large screen at a short projection distance. The projection optical unit 170 has a region related to most of the back surface of the document table cover 120 as a projection region, and image processing such as keystone distortion correction is performed on the projected image.

  The imaging device 180 is composed of a CCD camera, for example, and is disposed below the document table 110 (see FIG. 4).

  As shown in FIG. 3, the control unit 200 is a control unit that performs overall control of each unit constituting the copying machine 1.

  The NCU 210 controls the connection with the public telephone line network (PSTN) L, which is a communication line, and has a function of detecting the transmission and reception of a dial signal corresponding to the destination telephone number (including the FAX number). .

  The MODEM 220 modulates transmission data and demodulates reception data based on a facsimile transmission control procedure (facsimile communication procedure) according to ITU (International Telecommunication Union) recommendation. Further, the MODEM 220 has a function of modulating transmission data, which is a digital signal, into an analog voice signal for transmission to the public telephone line network L via the NCU 210, and an analog received from the public telephone line network L via the NCU 210. The audio signal is demodulated into a digital signal.

  The ROM 230 stores a program for controlling the operation of the entire copying machine 1 and the like. The RAM 240 stores data necessary for control by the control unit 200 and data that needs to be temporarily stored during the control operation. The image memory 250 encodes image information (image data) of a document read by the image reading device 270 and stores it in a compressed state.

  The CODEC 260 encodes (encodes) the read document image information (image data) by the MH, MR, MMR method or the like in order to transmit or store the image information. Further, the CODEC 260 decodes (decodes) the image information of the original document received in the compressed and encoded state for recording by the printer 280.

  The image reading device 270 includes a light source 272 that irradiates light on the document 10 placed on the document table 110, an image sensor 274 such as a CCD (charge coupled device) that receives reflected light from the document 10, and an image. An image processing unit 276 that converts image information of the document read by the sensor 274 into a digital signal and outputs the digital signal.

  The copy guide frame processing unit 280 stores information related to the copy guide frame 20 that represents an area to be copied, and the copy guide frame processing unit 280 stores the information about the image of the original 10 from the projection optical unit 170. Information about the copy guide frame 20 is output so that 20 is projected. Further, when the position, size, or shape of the copy guide frame 20 is changed by the operation button 162, the copy guide frame processing unit 280 is based on the change information of the copy guide frame 20 by the operation button 162, and the projection optical unit 170. The position, size, or shape of the copy guide frame 20 in the image light projected from is changed, and information about the copy guide frame 20 after the change is output.

  The printer 290 is, for example, an electrophotographic printer, and records (prints) an image of the original 10 read by the image reading device 270 and an image received via the MODEM 220 on a recording sheet.

  When copying the document 10 using the copying machine 1 configured as described above, the user of the copying machine 1 first opens the document table cover 120 and places (sets) the document 10 on the document table 110, and then operates the operation panel. Press the 160 shooting start button. As a result, the document 10 placed on the document table 110 is photographed by the imaging device 180. An image photographed by the imaging device 180 is projected on the back surface of the document table cover 120 together with the copy guide frame 20 as image information of the document 10.

  The user looks at the projection image projected on the back surface of the document table cover 120, and determines the positional relationship between the area to be actually copied in the document and the copy guide frame 20, the size (copy size) of the copy guide frame 20, and Check if the shape is correct. When the area to be actually copied and the copy guide frame 20 are aligned, by pressing the start button of the operation panel 160, the reading operation of the document 10 by the image reading device 270 starts, and the document in the copy guide frame 20 is started. Ten pieces of image information are printed with a predetermined paper size.

  On the other hand, if the area to be actually copied does not match the copy guide frame 20, the position of the copy guide frame 20 is changed with the operation button 162 of the operation panel 160 (see FIG. 5A), or copying. The size of the guide frame 20 is changed (see FIG. 5B), and the shape of the copy guide frame 20 is changed (see FIG. 5C). At this time, the position of the document 10 placed on the document table 110 instead of the copy guide frame 20 may be readjusted. After such adjustments are made and the area to be actually copied and the copy guide frame 20 are aligned, by pressing the start button on the operation panel 160, the reading operation of the document 10 by the image reading device 270 starts, and the copy guide frame 20 The image information of the original 10 is printed with a predetermined paper size.

According to the copying machine 1 according to the first embodiment configured as described above, the image information of the document 10 placed on the document table 110 on the back surface of the document table cover 120 when the document table cover 120 is opened, and Since the copy guide frame 20 representing the area to be copied is projected, these projected images can be confirmed once before copying. As a result, mistakes in setting the orientation and size of the copy paper with respect to the orientation and size of the document 10 placed on the document table 110 can be almost eliminated, and copy errors caused by this can be reduced. Even when the document 10 is not placed at the correct position on the document table 110, the position of the document 10 is determined before copying by checking the projected image projected on the back surface of the document table cover 120. Since the correction can be made, it is possible to reduce copying errors caused by the arrangement position of the document 10.
Therefore, the copying machine 1 according to the first embodiment is a copying machine capable of reducing copying errors.

  Further, according to the copying machine 1 according to the first embodiment, since the entire back surface of the document table cover 120 is used as the projection area of the projection optical unit 170, the document is displayed with an image having a size similar to the size of the actual document. Can be confirmed. For this reason, it is not difficult to see the projected image. Further, since the rear surface of the document table cover 120 that appears when the document table cover 120 is opened is used as the projection surface, the operation panel 160 does not increase in size and the copier 1 does not increase in size. . Further, according to the copying machine 1 according to the first embodiment, since the projection optical unit that projects a color image with a relatively low resolution (for example, about VGA) is used, the cost increase of the copying machine is suppressed as much as possible. Is possible.

  In the copying machine 1 according to the first embodiment, since the projection optical unit 170 is a proximity projection type projection optical unit, the back surface of the document table cover 120 that is relatively close to the projection optical unit 170 is also distorted. It is possible to form an image with less.

  In the copying machine 1 according to the first embodiment, the image light from the projection optical unit 170 is projected from the position between the document table 110 and the opening / closing mechanism 140 on the upper surface of the copying machine main body 100, so It is possible to prevent the image light of the projection optical unit 170 from being blocked by the body (hand or the like) of a user who works while standing on the front side.

  The copying machine 1 according to the first embodiment further includes an imaging device 180 that is disposed below the document table 110 and photographs the document 10 placed on the document table 110, and is projected from the projection optical unit 170. Since the image information of the document 10 in the image light is an image photographed by the imaging device 180, it is possible to surely confirm the orientation and size of the document placed on the document table, the position of the document, and the like. . In addition, it is possible to shorten the time required to check the document, and to adjust the position of the document in real time.

  The copying machine 1 according to the first embodiment further includes a detection unit 150 that detects whether the document table cover 120 is opened or closed, and the control unit 200 only detects when the detection unit 150 detects that the document table cover 120 is opened. The projection optical unit 170 has a function of controlling the projection optical unit 170 so that image light is projected from the projection optical unit 170. Accordingly, it is possible to realize a configuration in which image light is projected onto the back surface of the document table cover 120 only when the document table cover 120 is opened.

  In the copying machine 1 according to the first embodiment, the operation panel 160 having an operation button 162 having a function of changing the position, size, or shape of the copy guide frame 20 and the above-described copy guide frame processing unit 280 are further provided. For this reason, the copy guide frame 20 and the area to be actually copied in the document can be matched by a software operation without re-adjusting the arrangement position of the document 10.

[Embodiment 2]
FIG. 6 is an overall perspective view of the copying machine 2 according to the second embodiment. 6A is an overall perspective view of the copying machine 2 when the document table cover 190 is opened, and FIG. 6B is an overall perspective view of the copying machine 2 when the document table cover 190 is closed.
In FIG. 6, the same members as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The copier 2 according to the second embodiment basically has a configuration similar to that of the copier 1 according to the first embodiment, but the configuration of the document table cover is different from that of the copier 1 according to the first embodiment.

  That is, in the copying machine 2 according to the second embodiment, as shown in FIG. 6, the document table cover 190 does not include an ADF. A reflection surface 192 that reflects the image light from the projection optical unit 170 toward the user of the copying machine 2 (front side) is disposed on the back surface of the document table cover 190.

  As described above, the copying machine 2 according to the second embodiment is different from the copying machine 1 according to the first embodiment in the configuration of the document table cover, but as in the case of the copying machine 1 according to the first embodiment, the document table cover. Since the image information of the document 10 placed on the document table 110 and the copy guide frame 20 are projected on the back surface of the document table cover 190 when the 190 is opened, these projected images should be confirmed once before copying. Is possible. As a result, it is possible to reduce copying errors caused by setting mistakes in the orientation and size of copying paper and copying errors caused by the position of the original 10.

  In the copying machine 2 according to the second embodiment, since the above-described reflecting surface 192 is provided on the back surface of the document table cover 190, it is possible to project and display a clear image with high brightness. Become.

  The copying machine 2 according to the second embodiment has the same configuration as that of the copying machine 1 according to the first embodiment except for the configuration of the document table cover. It has the effect to do as it is.

[Embodiment 3]
FIG. 7 is a diagram for explaining the copying machine 3 according to the third embodiment. FIG. 7A is a diagram showing the relationship between the document 10 placed on the document table 110 and the image light projected on the back surface of the document table cover 120 in the case of the copying machine 1 according to the first embodiment. FIG. 7B is a diagram showing the relationship between the document 10 placed on the document table 110 and the image light projected on the back surface of the document table cover 120 in the case of the copying machine 3 according to the third embodiment. In the original 10 shown in FIGS. 7A and 7B, alphabets for facilitating understanding of the invention are described.

  The copier 3 according to the third embodiment basically has a configuration similar to that of the copier 1 according to the first embodiment, but the embodiment is that the image projected from the projection optical unit is subjected to image processing. 1 is different from the copying machine 1 according to FIG.

  That is, in the copying machine 1 according to the first embodiment, as can be seen from the alphabetical direction of the original 10 shown in FIG. 7A, the image light projected on the actual original 10 and the back surface of the original table cover 120. Whereas the orientation of the original 10 is different, in the copying machine 3 according to the third embodiment, as can be seen from the alphabetical orientation of the original 10 in FIG. The direction of the original 10 in the image light projected on the back surface of the cover 120 is the same.

  In the copying machine 3 according to the third embodiment, the image processing unit 276 (both not shown) in the image reading device 270 projects the same image as when the document 10 is actually viewed on the back surface of the document table cover 120. As shown, image processing is performed.

  As described above, the copying machine 3 according to the third embodiment is different from the copying machine 1 according to the first embodiment in that the image projected from the projection optical unit is processed, but the copying machine according to the first embodiment. 1, the image information of the document 10 placed on the document table 110 and the copy guide frame 20 are projected on the back surface of the document table cover 120 when the document table cover 120 is opened. These projected images can be confirmed once before. As a result, it is possible to reduce copying errors caused by setting mistakes in the orientation and size of copying paper and copying errors caused by the position of the original 10.

  Further, in the copying machine 3 according to the third embodiment, since image processing is performed so that the same image as when the document 10 is actually viewed is projected on the back surface of the document table cover 120, There is an effect that the confirmation operation of the projected image after placing the document 10 becomes relatively easy.

  The copying machine 3 according to the third embodiment has the same configuration as that of the copying machine 1 according to the first embodiment except that the image projected from the projection optical unit is subjected to image processing. Among the effects that the copying machine 1 has, the corresponding effects are provided as they are.

  The copying machine of the present invention has been described based on each of the above embodiments. However, the present invention is not limited to each of the above embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.

  In each of the above embodiments, the case where the image captured by the imaging device 180 is used as the image information of the document in the image light projected from the projection optical unit 170 has been described as an example. However, the present invention is not limited to this. It is not something. For example, the image reading apparatus has a function of pre-scanning a document placed on a document table, and the image information of the document in the image light projected from the projection optical unit 170 is converted into an image pre-scanned by the image reading apparatus. It may be used as In this case, an image pickup apparatus is not necessary, so that the manufacturing cost of the copying machine can be reduced.

  In each of the above embodiments, a projection optical unit that projects a color image having a relatively low resolution (for example, about VGA) is used. However, the present invention is not limited to this, and a monochrome image is projected. A projection optical unit may be used, or a projection optical unit that projects a high-resolution color image may be used.

  In each of the embodiments described above, the case where the document table 110 is disposed on the back side of the document table 110 (the space between the document table 110 and the opening / closing mechanism 140) has been described as an example. However, the present invention is not limited to this. Instead, for example, it may be disposed on the front side of the document table 110 (a space between the document 110th and the operation panel 160), or may be disposed on the right side or the left side of the document table 110. .

  In each of the above-described embodiments, the case where shooting of the imaging device 180 is started by pressing the shooting start button after placing a document on the platen 110 has been described, but the present invention is not limited thereto. It is not something. For example, the image capturing apparatus 180 may be configured to automatically start photographing in response to the detection unit 150 detecting that the document table cover is opened.

  In each of the above-described embodiments, the detection unit 150 that detects the opening / closing of the document table cover 120 based on the change in the protruding state of the protrusion 152 has been described as an example, but the present invention is limited to this. It is not a thing. In addition to the detection unit composed of such a mechanical sensor, a detection unit composed of a sensor such as an optical type, a magnetic type, an ultrasonic type, or a radio wave type can also be suitably used. Further, the arrangement position of the projections 152 may be on the side of the document table cover 120 or 190 instead of the copying machine main body 100 side, and the number of the projections 152 may be plural.

1 is an overall perspective view of a copying machine 1 according to a first embodiment. FIG. 4 is a perspective view showing a state in which image light is projected from a projection optical unit 170. FIG. 3 is a diagram for explaining the configuration of the copying machine 1. FIG. 3 is a diagram for explaining the configuration of the copying machine 1. FIG. 2 is a view for explaining the copying machine 1 according to the first embodiment. FIG. 3 is an overall perspective view of a copying machine 2 according to a second embodiment. FIG. 9 is a diagram for explaining a copying machine 3 according to a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2, 3 ... Copy machine, 10 ... Document, 20 ... Copy guide frame, 100 ... Copy machine main body, 110 ... Document table, 120, 190 ... Document table cover, 130 ... ADF, 132 ... Document supply port, 134 ... Document feeding member, 136 ... Document discharge port, 138 ... Document receiver, 140 ... Opening / closing mechanism, 150 ... Detection section, 152 ... Projection section, 160 ... Operation panel, 162 ... Operation button, 164 ... Display section, 170 ... Projection optical unit 172: Reflection mirror, 180 ... Imaging device, 192 ... Reflecting surface, 200 ... Control unit, 210 ... NCU, 220 ... MODEM, 230 ... ROM, 240 ... RAM, 250 ... Image memory, 260 ... CODEC, 270 ... Image reading Apparatus, 272 ... Light source, 274 ... Image sensor, 276 ... Image processing unit, 280 ... Copy guide frame processing unit, 290 ... Printer, B ... Bus, L ... Public Telephone network

Claims (8)

A copier body having a document table on which a document is placed;
A document table cover configured to be openable and closable with respect to the document table;
An opening / closing mechanism disposed at one end of the upper surface of the copier body for opening and closing the document table cover;
An image reading device for reading a document placed on the document table;
A copy guide frame representing an area to be copied with image information of the document placed on the document table from the upper surface of the copying machine main body toward the surface of the document table cover facing the document table. A projection optical unit that projects as image light;
A control unit that controls at least the image reading device and the projection optical unit;
The copier has a function of controlling the projection optical unit so that the image light is projected from the projection optical unit when the document table cover is opened. In the copying machine according to claim 1,
The copying machine, wherein the projection optical unit is a proximity projection type projection optical unit. In the copying machine according to claim 1 or 2,
The copying machine, wherein the image light from the projection optical unit is projected from a position between the document table and the opening / closing mechanism on an upper surface of the copying machine main body. In the copying machine according to any one of claims 1 to 3,
A copy surface characterized in that a reflection surface for reflecting the image light from the projection optical unit toward a user of a copying machine is disposed on a surface of the document table cover facing the document table. Machine. In the copying machine according to any one of claims 1 to 4,
The image reading device has a function of pre-scanning a document placed on the document table,
The copying machine, wherein the image information of the original in the image light projected from the projection optical unit is an image pre-scanned by the image reading device. In the copying machine according to any one of claims 1 to 4,
An imaging device that is disposed below the document table and photographs a document placed on the document table;
The copying machine, wherein the image information of the document in the image light projected from the projection optical unit is an image photographed by the imaging device. In the copying machine according to any one of claims 1 to 6,
A detector for detecting opening and closing of the document table cover;
The control unit has a function of controlling the projection optical unit so that the image light is projected from the projection optical unit only when the detection unit detects that the document table cover is opened. Copier features. In the copying machine according to any one of claims 1 to 7,
An operation panel having an operation button having a function of changing at least one of the position, size and shape of the copy guide frame;
A copy guide frame processing unit that changes at least one of the position, size, and shape of the copy guide frame in the image light projected from the projection optical unit based on change information of the copy guide frame by the operation button; A copier characterized by further comprising:

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