JPH02289870A - Copying machine with original projector - Google Patents

Abstract

PURPOSE:To improve operability when the area of a part of an original or an area except the part is selected and copied by providing a screen on a part of a console panel which is used for instructing various specifications, operations, etc., required for copying. CONSTITUTION:The copying machine is provided with the original projector 3 which illuminates an original D set on a contact glass 12 with its picture plane facing down, and which projects the picture onto the screen 17; the screen 17 is provided on a part of the console panel 2 which is used to instruct various specifications, operations, etc., required for copying. When the original D is set on the contact glass 12, an operator can clearly watch the picture, projected on the screen 17, on the part of the console panel 2 closest to the operator; therefore, condition where the original D is set can be surely confirmed even if the screen 17 is mad smaller in size (projection magnification is reduced); and the operator can specify a selection copy area with satisfactory operability while he watches the screen 17 with less movement of his eyes.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention... This article relates to a copying machine equipped with an original projection device that projects an image of an original placed on a contact glass. [Prior Art] A copying machine copies a portion of an original (for example, a newspaper) that is larger than the size of the transfer paper, or when the original is the same size or smaller than the transfer paper. You may also want to select and copy only a part of it. In such a case, if you place the original to be copied on the contact glass with the image side facing down,
Since the image is no longer visible to the operator, the operator tries to copy it. Copying has come to be done by setting the parts in a predicted manner, and in such a case, the image of the necessary part may be missing or misaligned, causing inconveniences9. Illuminates the image side of the original placed on the screen, projects the image onto the screen, and confirms the original setting status (
A copying machine equipped with a document projection device capable of displaying images (visible) has been disclosed, for example, in Japanese Patent Laid-Open No. 56-133773 and Japanese Utility Model Laid-open No. 60.
This is proposed in Publication No.-3834. Furthermore, when selecting and copying only a portion of a manuscript, it is necessary to specify that only the area to be copied be trimmed or that unnecessary portions be removed by masking. To make this process easier, conventionally, the characters necessary for copying the original were placed on or near the screen of the original projector.
Information such as numerical values can be displayed, for example, by printing, to make the task easier. For example, Japanese Patent Application Laid-Open No. 60-2609
As described in Publication No. 72, an area designation panel having a plurality of electrodes arranged in a matrix is placed inside the belt of the automatic document feeder mounted on the top of the copying machine, and an area designation panel is placed on the belt. A method is to set a document with the image side facing upward (the image is visible to the operator), and then input the specified area into the area specification panel via the belt by pressing the specified area of the document directly on the image surface. Proposed. In addition, as described in Japanese Patent Application Laid-Open No. 60-260973, the original is set on a contact glass with the image side facing downward, a transparent area designation panel is placed on top of the original, and the original is placed from below the contact glass. Another method has been proposed in which the operator presses an area specification panel to input the area to be specified while looking at the image transmitted through the back side of the document by shining a light on it. [Problems to be Solved by the Invention] However, such a copying machine equipped with an original projection device that projects an image of an original onto a screen can only be used when it is desired to select and copy only a part of an original as described above. However, in order for the operator to clearly check the position of the document at the operating position, the screen needs to be large. If the screen is located away from the operation panel that instructs various specifications and operations for copying, the operator will have to move his or her eyes widely when specifying the area to be copied. Sexuality becomes worse. In addition, there are many types of information that can be displayed to facilitate trimming and masking operations when selecting and copying a portion of a manuscript, such as the size of the transfer paper, the copyable area based on variable magnification, and dimensional scales. Because of the amount of information, it is difficult to display such information by printing on or near a screen with limited space, and even if it were possible to do so, it would be complicated and the operability would be extremely poor. Furthermore, in the case of a copying machine that has an area specification panel located inside the belt of the automatic document feeder, it is easy to specify the area because the original is set face up so that the image can be seen, but an automatic document feeder is required. Not only does this require a large-scale device, but it also has the disadvantage that if the manuscript is a book, it cannot be copied. Also, in the case of the method of specifying the area while viewing the image transmitted through the back side of the document using a transparent area specification panel placed on top of the document set with the image side facing down, the paper thickness and paper quality of the M document In some cases, the image transmitted to the back surface becomes difficult to see, so there is a problem with poor operability. This invention has been made in view of the above-mentioned problems, and is applicable when only a portion of a document is selected and copied in a copying machine equipped with a document projection device that projects the image of the document onto a screen. The purpose is to make it easy to operate. [Means for Solving the Problems] In order to achieve the above object, the present invention includes an original projection device that illuminates an original set with the image side facing down on a contact glass and projects the image onto a screen. This screen was installed as part of the operation panel for instructing various specifications and operations for copying, thereby constructing a copying machine. It is also equipped with an original projection device that illuminates an original set with the image side facing down on a contact glass and projects the image onto a screen. Information necessary for copying the original can be selectively displayed on the top or bottom of the screen. It is also possible to configure a copying machine by installing a transparent liquid crystal panel to display the image. Furthermore, it is equipped with an original projection device that illuminates an original set with the image side facing down on a contact glass and projects the image onto a screen, and has a matrix of many electrodes that each become conductive when pressed on the top surface of the screen. It would be even more convenient if the copying machine was configured with a transparent touch panel arranged in a shape. [Function] As mentioned above, when the screen of the yK document projection device is installed as part of the operation panel, the operator can view the image projected on the screen when setting the document on the contact glass. Since it can be clearly seen on the part of the operation panel that is closest to the screen, you can check the document loading status even if the screen is made small (by reducing the projection magnification). Area designation for selective copying can also be done with ease, with almost no movement of the eyes. In addition, if a transparent liquid crystal panel is installed on the top or bottom of the screen of the original projector, the operator can change the size of the transfer paper or change the size of the transfer paper on the liquid crystal panel when trimming or remasking a part of the original. Information necessary for copying, such as the copyable area by magnification and size scale, can be displayed selectively and sequentially as needed, making it easy to operate and perform the task efficiently. moreover,
If a transparent touch panel is installed on the top of the screen of the original projection device, when specifying the area to be copied, copy from above the original image projected on the screen via the transparent touch panel. You can do this simply by pressing and specifying the area you need.
Even if the image is difficult to see through to the back side of a document due to its thickness or paper quality, you can easily specify the area where the image will be copied. [Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings. FIG. 1 is a schematic configuration diagram as seen from the left side showing the main parts of a copying machine equipped with a document projection device n according to the present invention, and FIG. 2 is an overall configuration diagram similarly seen from the front showing the entire copying machine. .

As shown in FIG. 1, this copying machine 1 includes an apparatus main body 1 on which a document D is placed with the image side to be copied facing downward.
A contact glass 12 attached to the top of the contact glass 1, a scraping panel 2 on which various buttons are arranged for instructing various specifications and operations for copying, and a document D on the contact glass 12 are illuminated. and display the image on screen 17
It is equipped with a document projection device Wl31 that projects onto the document! 3 screen 17 is provided on a part of the operation panel 2. The document projection device 3 includes document projection illumination lamps 13A and 13B, which are fluorescent lamps, halogen lamps, etc., which are fixedly arranged by being attached to fixed parts of the device main body 11 on both sides of the contact glass 12 in the vicinity of the contact glass 12. Contact glass 12 illuminated by its illumination lamps IE5A and 11B
It consists of reflective mirrors 14 and 15 that reflect the light reflected from the upper original D, a projection lens 16, and a screen 17 that projects an original image corresponding to the image of the original D. The screen 17 is shown in FIG. It is provided on a part of the operation panel 2 as shown in the figure. The screen 17 is formed of, for example, a translucent film, and is formed into a rectangle (third corner) on the operation panel 2.
(see figure), so that the original image projected thereon can be viewed from outside the main body 11 of the apparatus. Note that the illumination lamps 15A and 13B are lit only when projecting an original, and are not lit at other times (especially during copying operation).
It is supposed to disappear.

Next, the overall structure and operation of this copying machine will be explained with reference to FIG. The document D placed on the contact glass 12 is moved to the rotating reflecting mirror 24A by the left and right illumination lamps 23A, 23B.
. An image is formed on the photosensitive drum 28 rotating in the direction of the arrow in FIG. 2 through the second mirror 27, and its surface is exposed. Prior to exposure, the surface of the photosensitive drum 28 is uniformly charged by a charging charger 29, and an electrostatic latent image is formed on the surface by the exposure. Then, the electrostatic latent image is visualized (forms a toner image) by performing two-color development in the black and red developing units 30B and 30R according to the required number. On the other hand, paper feed trays 32A to 3 are located on the right side of the apparatus main body 11.
2C are provided in three stages, and the transfer paper P is fed one by one from the selected paper feed tray by the paper feed roller 34, and the timing is adjusted by the registration roller 20, and the transfer paper is conveyed to the photosensitive drum 28. Transfer charger 35 to P
The toner image is transferred by Then, the transfer paper P is separated from the photoreceptor drum 28 by a separation belt 36, and the toner image is fixed by a fixing unit 37, and in the case of one-color copying, a wandering paper roller 31 is used as a device that also serves as an external tray. Discharge onto the upper cover 18 of the main body 11. In addition, when performing two-color copying of black and red, the black toner image developed by the developing unit 50B is first transferred to the transfer paper P and fixed, and then sent to the re-feeding conveyance path 25. Once stacked on the intermediate tray 21, the paper is then re-fed from there, a second color red toner image developed by the developing unit 30R is transferred and fixed thereon, and then discharged onto the upper cover 18 by the wandering paper roller 31. do. In FIG. 2, reference numeral 39 is an eraser unit, which erases unnecessary parts on the photoreceptor drum 28 when performing trimming mode (erasing images outside the specified area) or masking mode (erasing images within the specified area). It is used to erase the potential of a portion or the potential between each transfer sheet. FIG. 3 is a perspective view showing the operation panel 2 of this copying machine. In Fig. 3, 40 is a main switch that turns on and off the power of the copying machine, and 41 is a print key that is pressed to start the copying operation. 42 is on the numeric keypad. The input value is used when inputting the number of copies, etc., and is displayed on the display section 43. Further, 44 is a selection key for selecting a paper feed tray to be used from among the paper feed trays 32A to 32C (FIG. 2), and the selected paper feed tray is lit on the display section 45. The 4th is the variable magnification (zoom) key used when copying at variable magnification.
The set magnification ratio is displayed on the display section 47. On the 4th, the trimming mode setting key 49, which is used when you want to make a copy that erases the image outside the specified area, is used when you want to make a copy that erases the image inside the specified area, and the masking mode setting key 50, which is used when you want to make a copy, performs two-color copying. 51X and 51Y are both area setting keys and are used to set trimming mode or masking mode. Used to set the area to be trimmed or masked when selected.
By pressing the numeric keypad 42 while holding down the X area setting key 5fX or 51Y. You can set the area to be trimmed or masked in each of the X and Y directions. FIG. 4 is a block diagram showing a control section 60 that controls this copying machine and its related configuration.

This control unit 60 is a microcomputer, and is a CPU (central processing unit rI!) that has various judgment and processing functions.
61, an input/output unit (I/O) 62 for various signals, and a CPU
6 ROM 54 that stores the control program executed by 1.
and a RAM 65 that stores various control data. The control unit 60 controls the numeric keypad 42 on the operation panel 2, the X, Y area setting keys 51X,
From various keys such as 51Y (Fig. 3), various signals are sent to the operation panel input/output section (I/O) 83 and input/output section 6 for instructing various specified conditions necessary for copying.
Enter through 2.

And the display parts 43, 45, 47 on the operation panel 2
The input/output section (I
/O) 62 and the operation panel input/output section (I/O) 83. Furthermore, an eraser lighting signal for erasing the potential of unnecessary portions on the photoreceptor drum 28 is outputted to the eraser unit 39 through the driver 6, illuminating the document on the contact glass 12 and displaying the image on the screen 17. illumination lamps 13A and 13B for projecting onto
Ballast 67 sends a lamp lighting signal to light it up.
Output through.

According to this copying machine, as shown in FIG. 3, the screen 17 of the original projection device 3 is provided as a part of the operation panel 2, so that the operator can place the original on the contact glass 12 (first
(Figure), you can clearly see the projected image of the original on the screen 17 of the operation panel 2, which is the closest position to where you are standing. Therefore, since the screen 17 can be viewed from a close position by the operator, even if it is made small (by reducing the projection magnification), it is possible to sufficiently check the set state of the original. Accordingly, the copying machine can be made more compact by making the screen smaller.

In addition, while looking at the screen 17, you can operate the X, Y area setting keys 51X, 51Y and the numeric keypad 42 located next to it to set the area to be trimmed or masked almost without moving your eyes. Therefore, it is also easy to operate. FIG. 5 shows only the essential parts of another embodiment of a copying machine equipped with an original projection device in which a transparent liquid crystal panel is arranged on the top surface of the screen of the original projection device, and the parts corresponding to the above-mentioned embodiments are shown in FIG. They are given the same reference numerals and their explanations are omitted. As shown in FIG. 5, this embodiment differs from the previous embodiment in that a transparent liquid crystal panel 71 for selectively displaying information necessary for copying a document is provided on the upper surface of the screen 17 of the document projector.
The only difference is that . That is, in this embodiment, the screen 17 is provided within the opening 2a formed in the operation panel 2.
is inserted, and is received by the screen receiving part 2b that protrudes slightly inward over the entire circumference of the opening 2a, and is adhered with an adhesive, and a transparent liquid crystal panel 71 is attached to the upper surface (or the lower surface) of the screen receiving part 2b. are fixed by adhesive etc. Then, on the liquid crystal panel 71, information necessary for copying an original placed with the image side facing down on the contact glass is displayed.
It is possible to selectively display them sequentially. That is, an area for displaying paper sizes such as A3 and A4 as shown in Fig. 6, a dimension scale as shown in Fig. 7, and an area for trimming or masking the original as shown in Fig. 8. etc. on the original image projected on the contact glass 12 (see Figure 1). The display can be selectively displayed by sequentially pressing a display switching button (not shown) (located on the operation panel 2 in Fig. 3). FIG. 9 is a block diagram showing the control section 70 that controls the copying machine according to the embodiment of FIG. 5 and its related configuration. Parts corresponding to those in FIG. The explanation will be omitted. In addition to the same output signals as in the example shown in FIG. According to this embodiment, the output is performed through the operation panel input/output section (I/O) 63. When the operator trims and remasks a part of the document, the operator can input the data on the liquid crystal panel 71. The information necessary for copying, such as the size of the transfer paper, the copyable area according to the variable magnification, and the dimension scale, can be displayed selectively and sequentially as necessary, which improves operability compared to the previous embodiment. improves. FIG. 10 shows only the main parts of another embodiment of a copying machine equipped with an original projection device in which a transparent touch panel is disposed on the top surface of the screen of the original projection device t, and the parts corresponding to each of the above-mentioned embodiments are shown in FIG. are given the same reference numerals and their explanations will be omitted. This embodiment differs from the previous embodiments only in that a transparent touch panel 81 is provided on the upper surface of the screen 17 of the document projection device, as shown in FIG.

That is, a transparent touch panel 81 having a large number of electrodes arranged in a matrix, each of which becomes conductive when pressed, is disposed on the top surface of the screen 17 that is attached to the opening 2a of the operation panel 2 by adhesive or the like. It is fixed. As for the touch panel 81, a large number of lower electrodes 81a are arranged in a matrix on the upper part of the transparent fixed plate 82 at intervals according to the specification accuracy of the area to be copied, and the upper Electrode 81
b are placed above with a slight interval, and the upper part is covered with a thin protective sheet 83 having transparent elasticity.

A spacer (not shown) that easily deforms when pressed is provided between the fixing plate 82 and the protective sheet 83 so that the lower electrode 81a and the upper electrode 81b are not electrically connected in a normal state (when not pressed). When the operator presses the protective sheet 83 with his or her finger from above to set the copy area, the smoother is deformed (compressed) and the upper electrode 81b of the suppressed portion becomes the lower electrode 81a, as shown in FIG. It contacts and conducts. Therefore, by conducting between the upper electrode 81b and the lower electrode 81a, the area to be copied or the area not to be copied on the original is specified, and the eraser unit 39 is turned on based on the specified contents to copy only a part of the original. .

In addition, this touch panel can be used to chemically etch or mechanically peel off the conductive film of a transparent conductive film, which conducts the electrodes, by simply pressing the surface lightly (just touching it lightly with your finger), thereby increasing the insulation gap. The one with . They may be combined vertically and horizontally. FIG. 12 is a block diagram showing the control section 80 that controls the copying machine according to the embodiment of FIG. 10 and its related configuration, and parts corresponding to those in FIGS. 4 and 9 are given the same reference numerals. The explanation is omitted. This control section 80 receives the same input/output signals as in the example of FIG. A copy area designation signal for specifying the area to be copied from the touch panel 81 is input through the operation panel input/output section (I/O) 83 and input/output section (I/O) 82. According to this embodiment, if you want to copy a portion of a document, you can specify the region by simply pressing the transparent touch panel 81 from above the document image projected on the screen 17. Even if the original is thick or papery so that the image does not easily penetrate to the back side, it can be handled with ease, and even if the original is a book, it is possible to partially specify the area to be copied. It is convenient because it can be done. [Effects of the Invention] As explained above, according to the copying machine equipped with the original projection device according to the present invention, when a part of the original or an area excluding the part is selected and copied, It can be operated easily.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram as seen from the left side showing the main parts of a copying machine equipped with a document projection device according to the present invention; FIG. 2 is an overall configuration diagram showing the entire copying machine as seen from the front; The figure is a perspective view showing the operation panel 2 of the copying machine shown in Fig. 1, Fig. 4 is a block diagram showing the control section 60 that similarly controls the copying machine and its related configuration, and Fig. 5 is a diagram showing the screen of the document projection device. A sectional view showing only the essential parts of another embodiment in which a transparent liquid crystal panel is disposed on the upper surface, and FIGS. 6 to 8 show different display examples displayed on the liquid crystal panel 71 in the embodiment shown in FIG. Perspective view. FIG. 9 is a block diagram similar to FIG. 4, showing the control section 70 that controls the copying machine according to the embodiment of FIG. 5 and its related configuration. FIG. 10 is a block diagram similar to FIG. 11 is a sectional view showing only the essential parts of yet another different embodiment, FIG. 11 is a perspective view showing how the operator sets the copy area in the embodiment of FIG. 10, and FIG. FIG. 2 is a block diagram showing a control section 80 that controls the copying machine according to the embodiment and its related configuration. 2...Operation panel 3...Document projection device 1
2... Contact glass 1; A, 13B... Illumination lamp 14. 15... Reflection mirror 1st... Projection lens 17... Screen 3rd... Eraser unit 51X... X area Setting key 51Y...Y area setting key 71...Liquid crystal panel 8ta...Lower electrode D...Original

Claims (1)

[Claims] 1. A document projection device that illuminates a document set with the image side facing downward on a contact glass and projects the image onto a screen, and various specifications and operations for copying the screen. What is claimed is: 1. A copying machine equipped with a document projection device, characterized in that the document projection device is provided as a part of an operation panel for giving instructions. 2. A document projection device that illuminates a document set with the image side facing down on a contact glass and projects the image onto a screen, and selectively displays information necessary for copying the document on the top or bottom of the screen. A copying machine equipped with a document projection device characterized by being equipped with a transparent liquid crystal panel for displaying images. 3 An original projection device that illuminates an original set with the image side facing down on a contact glass and projects the image onto a screen, and a matrix of many electrodes that are electrically conductive when pressed on the top surface of the screen. A copying machine equipped with a document projection device, characterized in that a transparent touch panel is arranged on the screen.